mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-07-09 03:04:10 -04:00
Converted overflow warnings into errors in LRFMetaFile
Fixed bug where setting a smaller thumbnail would not reduce lrf file size Raised pylint score for lrf/*.py
This commit is contained in:
Kovid Goyal
parent
8bd8bfb39c
commit
9f4a2c9d72
@ -14,12 +14,14 @@
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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""
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This module presents an easy to use interface for getting and setting meta information in LRF files.
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Just create an L{LRFMetaFile} object and use its properties to get and set meta information. For example:
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>>> lrf = LRFMetaFile("mybook.lrf")
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>>> print lrf.title, lrf.author
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>>> lrf.category = "History"
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This module presents an easy to use interface for getting and setting
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meta information in LRF files.
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Just create an L{LRFMetaFile} object and use its properties
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to get and set meta information. For example:
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>>> lrf = LRFMetaFile("mybook.lrf")
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>>> print lrf.title, lrf.author
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>>> lrf.category = "History"
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"""
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import struct, array, zlib, StringIO
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@ -33,311 +35,369 @@ DWORD = "<I" #: Unsigned integer little endian encoded in 4 bytes
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QWORD = "<Q" #: Unsigned long long little endian encoded in 8 bytes
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class versioned_field(field):
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def __init__(self, vfield, version, start=0, fmt=WORD):
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field.__init__(self, start=start, fmt=fmt)
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self.vfield, self.version = vfield, version
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def __init__(self, vfield, version, start=0, fmt=WORD):
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field.__init__(self, start=start, fmt=fmt)
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self.vfield, self.version = vfield, version
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def enabled(self):
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return self.vfield > self.version
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def enabled(self):
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return self.vfield > self.version
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def __get__(self, obj, typ=None):
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if self.enabled(): return field.__get__(self, obj, typ=typ)
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else: return None
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def __get__(self, obj, typ=None):
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if self.enabled():
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return field.__get__(self, obj, typ=typ)
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else:
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return None
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def __set__(self, obj, val):
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if not self.enabled(): raise LRFException("Trying to set disabled field")
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else: field.__set__(self, obj, val)
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def __set__(self, obj, val):
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if not self.enabled():
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raise LRFException("Trying to set disabled field")
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else:
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field.__set__(self, obj, val)
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class LRFException(Exception):
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pass
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pass
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class fixed_stringfield(object):
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""" A field storing a variable length string. """
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def __init__(self, length=8, start=0):
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"""
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@param length: Size of this string
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@param start: The byte at which this field is stored in the buffer
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"""
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self._length = length
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self._start = start
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""" A field storing a variable length string. """
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def __init__(self, length=8, start=0):
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"""
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@param length: Size of this string
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@param start: The byte at which this field is stored in the buffer
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"""
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self._length = length
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self._start = start
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def __get__(self, obj, typ=None):
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length = str(self._length)
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return obj.unpack(start=self._start, fmt="<"+length+"s")[0]
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def __get__(self, obj, typ=None):
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length = str(self._length)
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return obj.unpack(start=self._start, fmt="<"+length+"s")[0]
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def __set__(self, obj, val):
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if val.__class__.__name__ != 'str': val = str(val)
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if len(val) != self._length: raise LRFException("Trying to set fixed_stringfield with a string of incorrect length")
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obj.pack(val, start=self._start, fmt="<"+str(len(val))+"s")
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def __set__(self, obj, val):
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if val.__class__.__name__ != 'str': val = str(val)
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if len(val) != self._length:
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raise LRFException("Trying to set fixed_stringfield with a " + \
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"string of incorrect length")
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obj.pack(val, start=self._start, fmt="<"+str(len(val))+"s")
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def __repr__(self):
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return "A string of length " + str(self._length) + " starting at byte " + str(self._start)
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def __repr__(self):
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return "A string of length " + str(self._length) + \
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" starting at byte " + str(self._start)
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class xml_field(object):
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"""
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Descriptor that gets and sets XML based meta information from an LRF file.
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Works for simple XML fields of the form <tagname>data</tagname>
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"""
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def __init__(self, tag_name):
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""" @param tag_name: The XML tag whoose data we operate on """
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self.tag_name = tag_name
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"""
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Descriptor that gets and sets XML based meta information from an LRF file.
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Works for simple XML fields of the form <tagname>data</tagname>
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"""
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def __init__(self, tag_name):
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""" @param tag_name: The XML tag whoose data we operate on """
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self.tag_name = tag_name
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def __get__(self, obj, typ=None):
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document = dom.parseString(obj.info)
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elem = document.getElementsByTagName(self.tag_name)[0]
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elem.normalize()
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if not elem.hasChildNodes(): return ""
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return elem.firstChild.data.strip()
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def __get__(self, obj, typ=None):
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document = dom.parseString(obj.info)
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elem = document.getElementsByTagName(self.tag_name)[0]
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elem.normalize()
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if not elem.hasChildNodes():
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return ""
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return elem.firstChild.data.strip()
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def __set__(self, obj, val):
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document = dom.parseString(obj.info)
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elem = document.getElementsByTagName(self.tag_name)[0]
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elem.normalize()
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while elem.hasChildNodes(): elem.removeChild(elem.lastChild)
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elem.appendChild(dom.Text())
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elem.firstChild.data = val
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s = StringIO.StringIO()
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Print(document, s)
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obj.info = s.getvalue()
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s.close()
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def __set__(self, obj, val):
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document = dom.parseString(obj.info)
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elem = document.getElementsByTagName(self.tag_name)[0]
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elem.normalize()
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while elem.hasChildNodes():
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elem.removeChild(elem.lastChild)
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elem.appendChild(dom.Text())
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elem.firstChild.data = val
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s = StringIO.StringIO()
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Print(document, s)
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obj.info = s.getvalue()
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s.close()
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def __str__(self):
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return self.tag_name
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def __repr__(self):
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return "XML Field: " + self.tag_name
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def __str__(self):
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return self.tag_name
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def __repr__(self):
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return "XML Field: " + self.tag_name
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class LRFMetaFile(object):
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""" Has properties to read and write all Meta information in a LRF file. """
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LRF_HEADER = "L\0R\0F\0\0\0" #: The first 8 bytes of all valid LRF files
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lrf_header = fixed_stringfield(length=8, start=0)
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version = field(fmt=WORD, start=8)
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xor_key = field(fmt=WORD, start=10)
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root_object_id = field(fmt=DWORD, start=12)
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number_of_objets = field(fmt=QWORD, start=16)
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object_index_offset = field(fmt=QWORD, start=24)
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binding = field(fmt=BYTE, start=36)
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dpi = field(fmt=WORD, start=38)
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width = field(fmt=WORD, start=42)
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height = field(fmt=WORD, start=44)
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color_depth = field(fmt=BYTE, start=46)
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toc_object_id = field(fmt=DWORD, start=0x44)
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toc_object_offset = field(fmt=DWORD, start=0x48)
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compressed_info_size = field(fmt=WORD, start=0x4c)
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thumbnail_type = versioned_field(version, 800, fmt=WORD, start=0x4e)
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thumbnail_size = versioned_field(version, 800, fmt=DWORD, start=0x50)
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uncompressed_info_size = versioned_field(compressed_info_size, 0, fmt=DWORD, start=0x54)
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title = xml_field("Title")
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author = xml_field("Author")
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book_id = xml_field("BookID")
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publisher = xml_field("Publisher")
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label = xml_field("Label")
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category = xml_field("Category")
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language = xml_field("Language")
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creator = xml_field("Creator")
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creation_date = xml_field("CreationDate") #: Format is %Y-%m-%d
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producer = xml_field("Producer")
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page = xml_field("Page")
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def safe(func):
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""" Decorator that ensures that function calls leave the pos in the underlying file unchanged """
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def restore_pos(*args, **kwargs):
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obj = args[0]
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pos = obj._file.tell()
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res = func(*args, **kwargs)
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obj._file.seek(0,2)
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if obj._file.tell() >= pos: obj._file.seek(pos)
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return res
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return restore_pos
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""" Has properties to read and write all Meta information in a LRF file. """
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LRF_HEADER = "L\0R\0F\0\0\0" #: The first 8 bytes of all valid LRF files
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def safe_property(func):
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""" Decorator that ensures that read or writing a property leaves the position in the underlying file unchanged """
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def decorator(f):
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def restore_pos(*args, **kwargs):
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obj = args[0]
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pos = obj._file.tell()
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res = f(*args, **kwargs)
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obj._file.seek(0,2)
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if obj._file.tell() >= pos: obj._file.seek(pos)
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return res
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return restore_pos
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locals_ = func()
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if locals_.has_key("fget"): locals_["fget"] = decorator(locals_["fget"])
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if locals_.has_key("fset"): locals_["fset"] = decorator(locals_["fset"])
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return property(**locals_)
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@safe_property
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def info():
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doc=""" Document meta information in raw XML format """
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def fget(self):
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if self.compressed_info_size == 0:
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raise LRFException("This document has no meta info")
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size = self.compressed_info_size - 4
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self._file.seek(self.info_start)
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try:
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stream = zlib.decompress(self._file.read(size))
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if len(stream) != self.uncompressed_info_size:
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raise LRFException("Decompression of document meta info yielded unexpected results")
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return stream
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except zlib.error, e:
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raise LRFException("Unable to decompress document meta information")
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lrf_header = fixed_stringfield(length=8, start=0)
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version = field(fmt=WORD, start=8)
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xor_key = field(fmt=WORD, start=10)
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root_object_id = field(fmt=DWORD, start=12)
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number_of_objets = field(fmt=QWORD, start=16)
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object_index_offset = field(fmt=QWORD, start=24)
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binding = field(fmt=BYTE, start=36)
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dpi = field(fmt=WORD, start=38)
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width = field(fmt=WORD, start=42)
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height = field(fmt=WORD, start=44)
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color_depth = field(fmt=BYTE, start=46)
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toc_object_id = field(fmt=DWORD, start=0x44)
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toc_object_offset = field(fmt=DWORD, start=0x48)
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compressed_info_size = field(fmt=WORD, start=0x4c)
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thumbnail_type = versioned_field(version, 800, fmt=WORD, start=0x4e)
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thumbnail_size = versioned_field(version, 800, fmt=DWORD, start=0x50)
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uncompressed_info_size = versioned_field(compressed_info_size, 0, \
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fmt=DWORD, start=0x54)
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def fset(self, info):
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self.uncompressed_info_size = len(info)
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stream = zlib.compress(info)
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self.compressed_info_size = len(stream) + 4
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self._file.seek(self.info_start)
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self._file.write(stream)
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self._file.flush()
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return locals()
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@safe_property
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def thumbnail_pos():
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doc=""" The position of the thumbnail in the LRF file """
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def fget(self):
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return self.info_start+ self.compressed_info_size-4
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return locals()
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@safe_property
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def thumbnail():
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doc=\
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""" The thumbnail. Represented as a string. The string you would get from the file read function. """
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def fget(self):
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size = self.thumbnail_size
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if size:
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self._file.seek(self.thumbnail_pos)
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return self._file.read(size)
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title = xml_field("Title")
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author = xml_field("Author")
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book_id = xml_field("BookID")
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publisher = xml_field("Publisher")
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label = xml_field("Label")
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category = xml_field("Category")
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def fset(self, data):
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if self.version <= 800: raise LRFException("Cannot store thumbnails in LRF files of version <= 800")
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orig_size = self.thumbnail_size
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self._file.seek(self.toc_object_offset)
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toc = self._file.read(self.object_index_offset - self.toc_object_offset)
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self._file.seek(self.object_index_offset)
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objects = self._file.read()
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self.thumbnail_size = len(data)
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self._file.seek(self.thumbnail_pos)
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self._file.write(data)
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orig_offset = self.toc_object_offset
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self.toc_object_offset = self._file.tell()
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self._file.write(toc)
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self.object_index_offset = self._file.tell()
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self._file.write(objects)
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ttype = 0x14
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if data[1:4] == "PNG": ttype = 0x12
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if data[0:2] == "BM": ttype = 0x13
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if data[0:4] == "JIFF": ttype = 0x11
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self.thumbnail_type = ttype
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self._file.flush()
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self.update_object_offsets(self.toc_object_offset - orig_offset) # Needed as new thumbnail may have different size than old thumbnail
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return locals()
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def __init__(self, file):
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""" @param file: A file object opened in the r+b mode """
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file.seek(0,2)
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self.size = file.tell()
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self._file = file
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if self.lrf_header != LRFMetaFile.LRF_HEADER:
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raise LRFException(file.name + " has an invalid LRF header. Are you sure it is an LRF file?")
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self.info_start = 0x58 if self.version > 800 else 0x53 #: Byte at which the compressed meta information starts
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language = xml_field("Language")
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creator = xml_field("Creator")
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creation_date = xml_field("CreationDate") #: Format is %Y-%m-%d
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producer = xml_field("Producer")
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page = xml_field("Page")
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@safe
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def update_object_offsets(self, delta):
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""" Run through the LRF Object index changing the offset by C{delta}. """
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self._file.seek(self.object_index_offset)
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while(True):
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try: self._file.read(4)
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except EOFError: break
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pos = self._file.tell()
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try: offset = self.unpack(fmt=DWORD, start=pos)[0] + delta
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except struct.error: break
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self.pack(offset, fmt=DWORD, start=pos)
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try: self._file.read(12)
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except EOFError: break
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self._file.flush()
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@safe
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def unpack(self, fmt=DWORD, start=0):
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"""
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Return decoded data from file.
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def safe(func):
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"""
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Decorator that ensures that function calls leave the pos
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in the underlying file unchanged
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"""
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def restore_pos(*args, **kwargs):
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obj = args[0]
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pos = obj._file.tell()
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res = func(*args, **kwargs)
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obj._file.seek(0, 2)
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if obj._file.tell() >= pos:
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obj._file.seek(pos)
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return res
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return restore_pos
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@param fmt: See U{struct<http://docs.python.org/lib/module-struct.html>}
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@param start: Position in file from which to decode
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"""
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end = start + struct.calcsize(fmt)
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self._file.seek(start)
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ret = struct.unpack(fmt, self._file.read(end-start))
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return ret
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def safe_property(func):
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"""
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Decorator that ensures that read or writing a property leaves
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the position in the underlying file unchanged
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"""
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def decorator(f):
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def restore_pos(*args, **kwargs):
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obj = args[0]
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pos = obj._file.tell()
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res = f(*args, **kwargs)
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obj._file.seek(0, 2)
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if obj._file.tell() >= pos:
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obj._file.seek(pos)
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return res
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return restore_pos
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locals_ = func()
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if locals_.has_key("fget"):
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locals_["fget"] = decorator(locals_["fget"])
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if locals_.has_key("fset"):
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locals_["fset"] = decorator(locals_["fset"])
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return property(**locals_)
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@safe
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def pack(self, *args, **kwargs):
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"""
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Encode C{args} and write them to file. C{kwargs} must contain the keywords C{fmt} and C{start}
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@safe_property
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def info():
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doc = """ Document meta information in raw XML format """
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def fget(self):
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if self.compressed_info_size == 0:
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raise LRFException("This document has no meta info")
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size = self.compressed_info_size - 4
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self._file.seek(self.info_start)
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try:
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stream = zlib.decompress(self._file.read(size))
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if len(stream) != self.uncompressed_info_size:
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raise LRFException("Decompression of document meta info\
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yielded unexpected results")
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return stream
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except zlib.error, e:
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raise LRFException("Unable to decompress document meta information")
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def fset(self, info):
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self.uncompressed_info_size = len(info)
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stream = zlib.compress(info)
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self.compressed_info_size = len(stream) + 4
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self._file.seek(self.info_start)
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self._file.write(stream)
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self._file.flush()
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return { "fget":fget, "fset":fset, "doc":doc }
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@param args: The values to pack
|
||||
@param fmt: See U{struct<http://docs.python.org/lib/module-struct.html>}
|
||||
@param start: Position in file at which to write encoded data
|
||||
"""
|
||||
encoded = struct.pack(kwargs["fmt"], *args)
|
||||
self._file.seek(kwargs["start"])
|
||||
self._file.write(encoded)
|
||||
self._file.flush()
|
||||
@safe_property
|
||||
def thumbnail_pos():
|
||||
doc = """ The position of the thumbnail in the LRF file """
|
||||
def fget(self):
|
||||
return self.info_start+ self.compressed_info_size-4
|
||||
return { "fget":fget, "doc":doc }
|
||||
|
||||
def __add__(self, tb):
|
||||
""" Return a LRFFile rather than a list as the sum """
|
||||
return LRFFile(list.__add__(self, tb))
|
||||
@safe_property
|
||||
def thumbnail():
|
||||
doc = \
|
||||
"""
|
||||
The thumbnail.
|
||||
Represented as a string.
|
||||
The string you would get from the file read function.
|
||||
"""
|
||||
def fget(self):
|
||||
size = self.thumbnail_size
|
||||
if size:
|
||||
self._file.seek(self.thumbnail_pos)
|
||||
return self._file.read(size)
|
||||
|
||||
def fset(self, data):
|
||||
if self.version <= 800:
|
||||
raise LRFException("Cannot store thumbnails in LRF files \
|
||||
of version <= 800")
|
||||
orig_size = self.thumbnail_size
|
||||
self._file.seek(self.toc_object_offset)
|
||||
toc = self._file.read(self.object_index_offset - self.toc_object_offset)
|
||||
self._file.seek(self.object_index_offset)
|
||||
objects = self._file.read()
|
||||
self.thumbnail_size = len(data)
|
||||
self._file.seek(self.thumbnail_pos)
|
||||
self._file.write(data)
|
||||
orig_offset = self.toc_object_offset
|
||||
self.toc_object_offset = self._file.tell()
|
||||
self._file.write(toc)
|
||||
self.object_index_offset = self._file.tell()
|
||||
self._file.write(objects)
|
||||
self._file.flush()
|
||||
self._file.truncate() # Incase old thumbnail was bigger than new
|
||||
ttype = 0x14
|
||||
if data[1:4] == "PNG":
|
||||
ttype = 0x12
|
||||
if data[0:2] == "BM":
|
||||
ttype = 0x13
|
||||
if data[0:4] == "JIFF":
|
||||
ttype = 0x11
|
||||
self.thumbnail_type = ttype
|
||||
# Needed as new thumbnail may have different size than old thumbnail
|
||||
self.update_object_offsets(self.toc_object_offset - orig_offset)
|
||||
return { "fget":fget, "fset":fset, "doc":doc }
|
||||
|
||||
def __getslice__(self, start, end):
|
||||
""" Return a LRFFile rather than a list as the slice """
|
||||
return LRFFile(list.__getslice__(self, start, end))
|
||||
def __init__(self, file):
|
||||
""" @param file: A file object opened in the r+b mode """
|
||||
file.seek(0, 2)
|
||||
self.size = file.tell()
|
||||
self._file = file
|
||||
if self.lrf_header != LRFMetaFile.LRF_HEADER:
|
||||
raise LRFException(file.name + \
|
||||
" has an invalid LRF header. Are you sure it is an LRF file?")
|
||||
# Byte at which the compressed meta information starts
|
||||
self.info_start = 0x58 if self.version > 800 else 0x53
|
||||
|
||||
def thumbail_extension(self):
|
||||
ext = "gif"
|
||||
ttype = self.thumbnail_type
|
||||
if ttype == 0x11: ext = "jpeg"
|
||||
elif ttype == 0x12: ext = "png"
|
||||
elif ttype == 0x13: ext = "bm"
|
||||
return ext
|
||||
@safe
|
||||
def update_object_offsets(self, delta):
|
||||
""" Run through the LRF Object index changing the offset by C{delta}. """
|
||||
self._file.seek(self.object_index_offset)
|
||||
while(True):
|
||||
try:
|
||||
self._file.read(4)
|
||||
except EOFError:
|
||||
break
|
||||
pos = self._file.tell()
|
||||
try:
|
||||
offset = self.unpack(fmt=DWORD, start=pos)[0] + delta
|
||||
except struct.error:
|
||||
break
|
||||
self.pack(offset, fmt=DWORD, start=pos)
|
||||
try:
|
||||
self._file.read(12)
|
||||
except EOFError:
|
||||
break
|
||||
self._file.flush()
|
||||
|
||||
def main():
|
||||
import sys, os.path
|
||||
from optparse import OptionParser
|
||||
from libprs500 import __version__ as VERSION
|
||||
parser = OptionParser(usage="usage: %prog [options] mybook.lrf\n\nWARNING: Based on reverse engineering the LRF format. Making changes may render your LRF file unreadable. ", version=VERSION)
|
||||
parser.add_option("-t", "--title", action="store", type="string", dest="title", help="Set the book title")
|
||||
parser.add_option("-a", "--author", action="store", type="string", dest="author", help="Set the author")
|
||||
parser.add_option("-c", "--category", action="store", type="string", dest="category", help="The category this book belongs to. E.g.: History")
|
||||
parser.add_option("--thumbnail", action="store", type="string", dest="thumbnail", help="Path to a graphic that will be set as this files' thumbnail")
|
||||
parser.add_option("--get-thumbnail", action="store_true", dest="get_thumbnail", default=False, help="Extract thumbnail from LRF file")
|
||||
parser.add_option("-p", "--page", action="store", type="string", dest="page", help="Don't know what this is for")
|
||||
options, args = parser.parse_args()
|
||||
if len(args) != 1:
|
||||
parser.print_help()
|
||||
sys.exit(1)
|
||||
lrf = LRFMetaFile(open(args[0], "r+b"))
|
||||
if options.title: lrf.title = options.title
|
||||
if options.author: lrf.author = options.author
|
||||
if options.category: lrf.category = options.category
|
||||
if options.page: lrf.page = options.page
|
||||
if options.thumbnail:
|
||||
f = open(options.thumbnail, "r")
|
||||
lrf.thumbnail = f.read()
|
||||
f.close()
|
||||
@safe
|
||||
def unpack(self, fmt=DWORD, start=0):
|
||||
"""
|
||||
Return decoded data from file.
|
||||
|
||||
@param fmt: See U{struct<http://docs.python.org/lib/module-struct.html>}
|
||||
@param start: Position in file from which to decode
|
||||
"""
|
||||
end = start + struct.calcsize(fmt)
|
||||
self._file.seek(start)
|
||||
self._file.seek(start)
|
||||
ret = struct.unpack(fmt, self._file.read(end-start))
|
||||
return ret
|
||||
|
||||
@safe
|
||||
def pack(self, *args, **kwargs):
|
||||
"""
|
||||
Encode C{args} and write them to file.
|
||||
C{kwargs} must contain the keywords C{fmt} and C{start}
|
||||
|
||||
@param args: The values to pack
|
||||
@param fmt: See U{struct<http://docs.python.org/lib/module-struct.html>}
|
||||
@param start: Position in file at which to write encoded data
|
||||
"""
|
||||
encoded = struct.pack(kwargs["fmt"], *args)
|
||||
self._file.seek(kwargs["start"])
|
||||
self._file.write(encoded)
|
||||
self._file.flush()
|
||||
|
||||
def thumbail_extension(self):
|
||||
ext = "gif"
|
||||
ttype = self.thumbnail_type
|
||||
if ttype == 0x11:
|
||||
ext = "jpeg"
|
||||
elif ttype == 0x12:
|
||||
ext = "png"
|
||||
elif ttype == 0x13:
|
||||
ext = "bm"
|
||||
return ext
|
||||
|
||||
if options.get_thumbnail:
|
||||
t = lrf.thumbnail
|
||||
td = "None"
|
||||
if t and len(t) > 0:
|
||||
td = os.path.basename(args[0])+"_thumbnail_."+lrf.thumbail_extension()
|
||||
f = open(td, "w")
|
||||
f.write(t)
|
||||
f.close()
|
||||
|
||||
fields = LRFMetaFile.__dict__.items()
|
||||
for f in fields:
|
||||
if "XML" in str(f):
|
||||
print str(f[1]) + ":", lrf.__getattribute__(f[0])
|
||||
if options.get_thumbnail: print "Thumbnail:", td
|
||||
def main():
|
||||
import sys, os.path
|
||||
from optparse import OptionParser
|
||||
from libprs500 import __version__ as VERSION
|
||||
parser = OptionParser(usage="usage: %prog [options] mybook.lrf\n\
|
||||
\nWARNING: Based on reverse engineering the LRF format."+\
|
||||
" Making changes may render your LRF file unreadable. ", \
|
||||
version=VERSION)
|
||||
parser.add_option("-t", "--title", action="store", type="string", \
|
||||
dest="title", help="Set the book title")
|
||||
parser.add_option("-a", "--author", action="store", type="string", \
|
||||
dest="author", help="Set the author")
|
||||
parser.add_option("-c", "--category", action="store", type="string", \
|
||||
dest="category", help="The category this book belongs"+\
|
||||
" to. E.g.: History")
|
||||
parser.add_option("--thumbnail", action="store", type="string", \
|
||||
dest="thumbnail", help="Path to a graphic that will be"+\
|
||||
" set as this files' thumbnail")
|
||||
parser.add_option("--get-thumbnail", action="store_true", \
|
||||
dest="get_thumbnail", default=False, \
|
||||
help="Extract thumbnail from LRF file")
|
||||
parser.add_option("-p", "--page", action="store", type="string", \
|
||||
dest="page", help="Don't know what this is for")
|
||||
options, args = parser.parse_args()
|
||||
if len(args) != 1:
|
||||
parser.print_help()
|
||||
sys.exit(1)
|
||||
lrf = LRFMetaFile(open(args[0], "r+b"))
|
||||
if options.title:
|
||||
lrf.title = options.title
|
||||
if options.author:
|
||||
lrf.author = options.author
|
||||
if options.category:
|
||||
lrf.category = options.category
|
||||
if options.page:
|
||||
lrf.page = options.page
|
||||
if options.thumbnail:
|
||||
f = open(options.thumbnail, "r")
|
||||
lrf.thumbnail = f.read()
|
||||
f.close()
|
||||
|
||||
if options.get_thumbnail:
|
||||
t = lrf.thumbnail
|
||||
td = "None"
|
||||
if t and len(t) > 0:
|
||||
td = os.path.basename(args[0])+"_thumbnail_."+lrf.thumbail_extension()
|
||||
f = open(td, "w")
|
||||
f.write(t)
|
||||
f.close()
|
||||
|
||||
fields = LRFMetaFile.__dict__.items()
|
||||
for f in fields:
|
||||
if "XML" in str(f):
|
||||
print str(f[1]) + ":", lrf.__getattribute__(f[0])
|
||||
if options.get_thumbnail:
|
||||
print "Thumbnail:", td
|
||||
|
||||
# This turns overflow warnings into errors
|
||||
import warnings
|
||||
warnings.simplefilter("error", DeprecationWarning)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user