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- #!/usr/bin/env python3
- #
- # mmgen = Multi-Mode GENerator, command-line Bitcoin cold storage solution
- # Copyright (C)2013-2020 The MMGen Project <mmgen@tuta.io>
- #
- # This program is free software: you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation, either version 3 of the License, or
- # (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program. If not, see <http://www.gnu.org/licenses/>.
- """
- filename.py: Filename class and methods for the MMGen suite
- """
- import sys,os
- from mmgen.exception import BadFileExtension,FileNotFound
- from mmgen.obj import *
- from mmgen.util import die,get_extension
- from mmgen.seed import *
- class Filename(MMGenObject):
- def __init__(self,fn,ftype=None,write=False):
- self.name = fn
- self.dirname = os.path.dirname(fn)
- self.basename = os.path.basename(fn)
- self.ext = get_extension(fn)
- self.ftype = None # the file's associated class
- self.mtime = None
- self.ctime = None
- self.atime = None
- from mmgen.seed import Wallet
- from mmgen.tx import MMGenTX
- if ftype:
- if isinstance(ftype,type):
- if issubclass(ftype,(Wallet,MMGenTX)):
- self.ftype = ftype
- # elif: # other MMGen file types
- else:
- die(3,"'{}': not a recognized file type for Wallet".format(ftype))
- else:
- die(3,"'{}': not a class".format(ftype))
- else:
- # TODO: other file types
- self.ftype = Wallet.ext_to_type(self.ext)
- if not self.ftype:
- m = "'{}': not a recognized Wallet file extension".format(self.ext)
- raise BadFileExtension(m)
- try:
- st = os.stat(fn)
- except:
- raise FileNotFound('{!r}: file not found'.format(fn))
- import stat
- if stat.S_ISBLK(st.st_mode):
- mode = (os.O_RDONLY,os.O_RDWR)[bool(write)]
- if g.platform == 'win': mode |= os.O_BINARY
- try:
- fd = os.open(fn, mode)
- except OSError as e:
- if e.errno == 13:
- die(2,"'{}': permission denied".format(fn))
- # if e.errno != 17: raise
- else:
- self.size = os.lseek(fd, 0, os.SEEK_END)
- os.close(fd)
- else:
- self.size = st.st_size
- self.mtime = st.st_mtime
- self.ctime = st.st_ctime
- self.atime = st.st_atime
- class MMGenFileList(list,MMGenObject):
- def __init__(self,fns,ftype):
- flist = [Filename(fn,ftype) for fn in fns]
- return list.__init__(self,flist)
- def names(self):
- return [f.name for f in self]
- def sort_by_age(self,key='mtime',reverse=False):
- if key not in ('atime','ctime','mtime'):
- die(1,"'{}': illegal sort key".format(key))
- self.sort(key=lambda a: getattr(a,key),reverse=reverse)
- def find_files_in_dir(ftype,fdir,no_dups=False):
- if not isinstance(ftype,type):
- die(3,"'{}': is of type {} (not a subclass of type 'type')".format(ftype,type(ftype)))
- from mmgen.seed import Wallet
- if not issubclass(ftype,Wallet):
- die(3,"'{}': not a recognized file type".format(ftype))
- try: dirlist = os.listdir(fdir)
- except: die(3,"ERROR: unable to read directory '{}'".format(fdir))
- matches = [l for l in dirlist if l[-len(ftype.ext)-1:]=='.'+ftype.ext]
- if no_dups:
- if len(matches) > 1:
- die(1,"ERROR: more than one {} file in directory '{}'".format(ftype.__name__,fdir))
- return os.path.join(fdir,matches[0]) if len(matches) else None
- else:
- return [os.path.join(fdir,m) for m in matches]
- def find_file_in_dir(ftype,fdir,no_dups=True):
- return find_files_in_dir(ftype,fdir,no_dups=no_dups)
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