def __init__(self, *args, **kwargs):
logging.Formatter.__init__(self, *args, **kwargs)
self._coloured = COLOURED and _stderr_supports_color()
if self._coloured:
curses.setupterm()
# The curses module has some str/bytes confusion in
# python3. Until version 3.2.3, most methods return
# bytes, but only accept strings. In addition, we want to
# output these strings with the logging module, which
# works with unicode strings. The explicit calls to
# unicode() below are harmless in python2 but will do the
# right conversion in python 3.
fg_color = (curses.tigetstr("setaf") or curses.tigetstr("setf") or
"")
if (3, 0) < sys.version_info < (3, 2, 3):
fg_color = unicode(fg_color, "ascii")
self._colors = {
# blues
logging.DEBUG: unicode(curses.tparm(fg_color, 4), "ascii"),
# green
logging.INFO: unicode(curses.tparm(fg_color, 2), "ascii"),
# yellow
logging.WARNING: unicode(curses.tparm(fg_color, 3), "ascii"),
# red
logging.ERROR: unicode(curses.tparm(fg_color, 1), "ascii")
}
self._normal = unicode(curses.tigetstr("sgr0"), "ascii")
def __init__(self, *args, **kwargs):
logging.Formatter.__init__(self, *args, **kwargs)
self._coloured = COLOURED and _stderr_supports_color()
if self._coloured:
curses.setupterm()
# The curses module has some str/bytes confusion in
# python3. Until version 3.2.3, most methods return
# bytes, but only accept strings. In addition, we want to
# output these strings with the logging module, which
# works with unicode strings. The explicit calls to
# unicode() below are harmless in python2 but will do the
# right conversion in python 3.
fg_color = (curses.tigetstr("setaf") or curses.tigetstr("setf")
or "")
if (3, 0) < sys.version_info < (3, 2, 3):
fg_color = unicode(fg_color, "ascii")
self._colors = {
# blues
logging.DEBUG: unicode(curses.tparm(fg_color, 4), "ascii"),
# green
logging.INFO: unicode(curses.tparm(fg_color, 2), "ascii"),
# yellow
logging.WARNING: unicode(curses.tparm(fg_color, 3), "ascii"),
# red
logging.ERROR: unicode(curses.tparm(fg_color, 1), "ascii")
}
self._normal = unicode(curses.tigetstr("sgr0"), "ascii")
def format(self, record):
try:
record.message = record.getMessage()
except Exception:
err = sys.exc_info()[1]
record.message = "Bad message (%r): %r" % (err, record.__dict__)
record.asctime = time.strftime(TIME_FORMAT,
self.converter(record.created))
prefix = PREFIX % record.__dict__
if self._coloured:
prefix = (self._colors.get(record.levelno, self._normal) +
prefix + self._normal)
# Encoding notes: The logging module prefers to work with character
# strings, but only enforces that log messages are instances of
# basestring. In python 2, non-ascii bytestrings will make
# their way through the logging framework until they blow up with
# an unhelpful decoding error (with this formatter it happens
# when we attach the prefix, but there are other opportunities for
# exceptions further along in the framework).
#
# If a byte string makes it this far, convert it to unicode to
# ensure it will make it out to the logs. Use repr() as a fallback
# to ensure that all byte strings can be converted successfully,
# but don't do it by default so we don't add extra quotes to ascii
# bytestrings. This is a bit of a hacky place to do this, but
# it's worth it since the encoding errors that would otherwise
# result are so useless (and tornado is fond of using utf8-encoded
# byte strings wherever possible).
try:
message = unicode(record.message)
except UnicodeDecodeError:
message = repr(record.message)
formatted = prefix + " " + message
if record.exc_info:
if not record.exc_text:
record.exc_text = self.formatException(record.exc_info)
if record.exc_text:
formatted = formatted.rstrip() + "\n" + record.exc_text
return formatted.replace("\n", "\n ")
def format(self, record):
try:
record.message = record.getMessage()
except Exception:
err = sys.exc_info()[1]
record.message = "Bad message (%r): %r" % (err, record.__dict__)
record.asctime = time.strftime(TIME_FORMAT,
self.converter(record.created))
prefix = PREFIX % record.__dict__
if self._coloured:
prefix = (self._colors.get(record.levelno, self._normal) +
prefix + self._normal)
# Encoding notes: The logging module prefers to work with character
# strings, but only enforces that log messages are instances of
# basestring. In python 2, non-ascii bytestrings will make
# their way through the logging framework until they blow up with
# an unhelpful decoding error (with this formatter it happens
# when we attach the prefix, but there are other opportunities for
# exceptions further along in the framework).
#
# If a byte string makes it this far, convert it to unicode to
# ensure it will make it out to the logs. Use repr() as a fallback
# to ensure that all byte strings can be converted successfully,
# but don't do it by default so we don't add extra quotes to ascii
# bytestrings. This is a bit of a hacky place to do this, but
# it's worth it since the encoding errors that would otherwise
# result are so useless (and tornado is fond of using utf8-encoded
# byte strings wherever possible).
try:
message = unicode(record.message)
except UnicodeDecodeError:
message = repr(record.message)
formatted = prefix + " " + message
if record.exc_info:
if not record.exc_text:
record.exc_text = self.formatException(record.exc_info)
if record.exc_text:
formatted = formatted.rstrip() + "\n" + record.exc_text
return formatted.replace("\n", "\n ")
def format_mlsx(self, basedir, listing, perms, facts, ignore_err=True):
"""Return an iterator object that yields the entries of a given
directory or of a single file in a form suitable with MLSD and
MLST commands.
Every entry includes a list of "facts" referring the listed
element. See RFC-3659, chapter 7, to see what every single
fact stands for.
- (str) basedir: the absolute dirname.
- (list) listing: the names of the entries in basedir
- (str) perms: the string referencing the user permissions.
- (str) facts: the list of "facts" to be returned.
- (bool) ignore_err: when False raise exception if os.stat()
call fails.
Note that "facts" returned may change depending on the platform
and on what user specified by using the OPTS command.
This is how output could appear to the client issuing
a MLSD request:
type=file;size=156;perm=r;modify=20071029155301;unique=8012; music.mp3
type=dir;size=0;perm=el;modify=20071127230206;unique=801e33; ebooks
type=file;size=211;perm=r;modify=20071103093626;unique=192; module.py
"""
assert isinstance(basedir, unicode), basedir
if listing:
assert isinstance(listing[0], unicode)
if self.cmd_channel.use_gmt_times:
timefunc = time.gmtime
else:
timefunc = time.localtime
permdir = ''.join([x for x in perms if x not in 'arw'])
permfile = ''.join([x for x in perms if x not in 'celmp'])
if ('w' in perms) or ('a' in perms) or ('f' in perms):
permdir += 'c'
if 'd' in perms:
permdir += 'p'
show_type = 'type' in facts
show_perm = 'perm' in facts
show_size = 'size' in facts
show_modify = 'modify' in facts
show_create = 'create' in facts
show_mode = 'unix.mode' in facts
show_uid = 'unix.uid' in facts
show_gid = 'unix.gid' in facts
show_unique = 'unique' in facts
for basename in listing:
retfacts = dict()
if not PY3:
try:
file = os.path.join(basedir, basename)
except UnicodeDecodeError:
# (Python 2 only) might happen on filesystem not
# supporting UTF8 meaning os.listdir() returned a list
# of mixed bytes and unicode strings:
# http://goo.gl/6DLHD
# http://bugs.python.org/issue683592
file = os.path.join(bytes(basedir), bytes(basename))
if not isinstance(basename, unicode):
basename = unicode(basename, 'utf8')
else:
file = os.path.join(basedir, basename)
# in order to properly implement 'unique' fact (RFC-3659,
# chapter 7.5.2) we are supposed to follow symlinks, hence
# use os.stat() instead of os.lstat()
try:
st = self.stat(file)
except (OSError, FilesystemError):
if ignore_err:
continue
raise
# type + perm
# same as stat.S_ISDIR(st.st_mode) but slightly faster
isdir = (st.st_mode & 61440) == stat.S_IFDIR
if isdir:
if show_type:
if basename == '.':
retfacts['type'] = 'cdir'
elif basename == '..':
retfacts['type'] = 'pdir'
else:
retfacts['type'] = 'dir'
if show_perm:
retfacts['perm'] = permdir
else:
if show_type:
retfacts['type'] = 'file'
if show_perm:
retfacts['perm'] = permfile
if show_size:
retfacts['size'] = st.st_size # file size
# last modification time
if show_modify:
try:
retfacts['modify'] = time.strftime("%Y%m%d%H%M%S",
timefunc(st.st_mtime))
# it could be raised if last mtime happens to be too old
# (prior to year 1900)
except ValueError:
pass
if show_create:
# on Windows we can provide also the creation time
try:
retfacts['create'] = time.strftime("%Y%m%d%H%M%S",
timefunc(st.st_ctime))
except ValueError:
pass
# UNIX only
if show_mode:
retfacts['unix.mode'] = oct(st.st_mode & 511)
if show_uid:
retfacts['unix.uid'] = st.st_uid
if show_gid:
retfacts['unix.gid'] = st.st_gid
# We provide unique fact (see RFC-3659, chapter 7.5.2) on
# posix platforms only; we get it by mixing st_dev and
# st_ino values which should be enough for granting an
# uniqueness for the file listed.
# The same approach is used by pure-ftpd.
# Implementors who want to provide unique fact on other
# platforms should use some platform-specific method (e.g.
# on Windows NTFS filesystems MTF records could be used).
if show_unique:
retfacts['unique'] = "%xg%x" % (st.st_dev, st.st_ino)
# facts can be in any order but we sort them by name
factstring = "".join(["%s=%s;" % (x, retfacts[x])
for x in sorted(retfacts.keys())])
line = "%s %s\r\n" % (factstring, basename)
yield line.encode('utf8', self.cmd_channel.unicode_errors)
def format_list(self, basedir, listing, ignore_err=True):
"""Return an iterator object that yields the entries of given
directory emulating the "/bin/ls -lA" UNIX command output.
- (str) basedir: the absolute dirname.
- (list) listing: the names of the entries in basedir
- (bool) ignore_err: when False raise exception if os.lstat()
call fails.
On platforms which do not support the pwd and grp modules (such
as Windows), ownership is printed as "owner" and "group" as a
default, and number of hard links is always "1". On UNIX
systems, the actual owner, group, and number of links are
printed.
This is how output appears to client:
-rw-rw-rw- 1 owner group 7045120 Sep 02 3:47 music.mp3
drwxrwxrwx 1 owner group 0 Aug 31 18:50 e-books
-rw-rw-rw- 1 owner group 380 Sep 02 3:40 module.py
"""
assert isinstance(basedir, unicode), basedir
if listing:
assert isinstance(listing[0], unicode)
if self.cmd_channel.use_gmt_times:
timefunc = time.gmtime
else:
timefunc = time.localtime
SIX_MONTHS = 180 * 24 * 60 * 60
readlink = getattr(self, 'readlink', None)
now = time.time()
for basename in listing:
if not PY3:
try:
file = os.path.join(basedir, basename)
except UnicodeDecodeError:
# (Python 2 only) might happen on filesystem not
# supporting UTF8 meaning os.listdir() returned a list
# of mixed bytes and unicode strings:
# http://goo.gl/6DLHD
# http://bugs.python.org/issue683592
file = os.path.join(bytes(basedir), bytes(basename))
if not isinstance(basename, unicode):
basename = unicode(basename, 'utf8')
else:
file = os.path.join(basedir, basename)
try:
st = self.lstat(file)
except (OSError, FilesystemError):
if ignore_err:
continue
raise
perms = _filemode(st.st_mode) # permissions
nlinks = st.st_nlink # number of links to inode
if not nlinks: # non-posix system, let's use a bogus value
nlinks = 1
size = st.st_size # file size
uname = self.get_user_by_uid(st.st_uid)
gname = self.get_group_by_gid(st.st_gid)
mtime = timefunc(st.st_mtime)
# if modification time > 6 months shows "month year"
# else "month hh:mm"; this matches proftpd format, see:
# http://code.google.com/p/pyftpdlib/issues/detail?id=187
if (now - st.st_mtime) > SIX_MONTHS:
fmtstr = "%d %Y"
else:
fmtstr = "%d %H:%M"
try:
mtimestr = "%s %s" % (_months_map[mtime.tm_mon],
time.strftime(fmtstr, mtime))
except ValueError:
# It could be raised if last mtime happens to be too
# old (prior to year 1900) in which case we return
# the current time as last mtime.
mtime = timefunc()
mtimestr = "%s %s" % (_months_map[mtime.tm_mon],
time.strftime("%d %H:%M", mtime))
# same as stat.S_ISLNK(st.st_mode) but slighlty faster
islink = (st.st_mode & 61440) == stat.S_IFLNK
if islink and readlink is not None:
# if the file is a symlink, resolve it, e.g.
# "symlink -> realfile"
try:
basename = basename + " -> " + readlink(file)
except (OSError, FilesystemError):
if not ignore_err:
raise
# formatting is matched with proftpd ls output
line = "%s %3s %-8s %-8s %8s %s %s\r\n" % (
perms, nlinks, uname, gname, size, mtimestr, basename)
yield line.encode('utf8', self.cmd_channel.unicode_errors)
def format_mlsx(self, basedir, listing, perms, facts, ignore_err=True):
"""Return an iterator object that yields the entries of a given
directory or of a single file in a form suitable with MLSD and
MLST commands.
Every entry includes a list of "facts" referring the listed
element. See RFC-3659, chapter 7, to see what every single
fact stands for.
- (str) basedir: the absolute dirname.
- (list) listing: the names of the entries in basedir
- (str) perms: the string referencing the user permissions.
- (str) facts: the list of "facts" to be returned.
- (bool) ignore_err: when False raise exception if os.stat()
call fails.
Note that "facts" returned may change depending on the platform
and on what user specified by using the OPTS command.
This is how output could appear to the client issuing
a MLSD request:
type=file;size=156;perm=r;modify=20071029155301;unique=801cd2; music.mp3
type=dir;size=0;perm=el;modify=20071127230206;unique=801e33; ebooks
type=file;size=211;perm=r;modify=20071103093626;unique=801e32; module.py
"""
assert isinstance(basedir, unicode), basedir
if listing:
assert isinstance(listing[0], unicode)
if self.cmd_channel.use_gmt_times:
timefunc = time.gmtime
else:
timefunc = time.localtime
permdir = ''.join([x for x in perms if x not in 'arw'])
permfile = ''.join([x for x in perms if x not in 'celmp'])
if ('w' in perms) or ('a' in perms) or ('f' in perms):
permdir += 'c'
if 'd' in perms:
permdir += 'p'
show_type = 'type' in facts
show_perm = 'perm' in facts
show_size = 'size' in facts
show_modify = 'modify' in facts
show_create = 'create' in facts
show_mode = 'unix.mode' in facts
show_uid = 'unix.uid' in facts
show_gid = 'unix.gid' in facts
show_unique = 'unique' in facts
for basename in listing:
retfacts = dict()
if not PY3:
try:
file = os.path.join(basedir, basename)
except UnicodeDecodeError:
# (Python 2 only) might happen on filesystem not
# supporting UTF8 meaning os.listdir() returned a list
# of mixed bytes and unicode strings:
# http://goo.gl/6DLHD
# http://bugs.python.org/issue683592
file = os.path.join(bytes(basedir), bytes(basename))
if not isinstance(basename, unicode):
basename = unicode(basename, 'utf8')
else:
file = os.path.join(basedir, basename)
# in order to properly implement 'unique' fact (RFC-3659,
# chapter 7.5.2) we are supposed to follow symlinks, hence
# use os.stat() instead of os.lstat()
try:
st = self.stat(file)
except (OSError, FilesystemError):
if ignore_err:
continue
raise
# type + perm
# same as stat.S_ISDIR(st.st_mode) but slightly faster
isdir = (st.st_mode & 61440) == stat.S_IFDIR
if isdir:
if show_type:
if basename == '.':
retfacts['type'] = 'cdir'
elif basename == '..':
retfacts['type'] = 'pdir'
else:
retfacts['type'] = 'dir'
if show_perm:
retfacts['perm'] = permdir
else:
if show_type:
retfacts['type'] = 'file'
if show_perm:
retfacts['perm'] = permfile
if show_size:
retfacts['size'] = st.st_size # file size
# last modification time
if show_modify:
try:
retfacts['modify'] = time.strftime("%Y%m%d%H%M%S",
timefunc(st.st_mtime))
# it could be raised if last mtime happens to be too old
# (prior to year 1900)
except ValueError:
pass
if show_create:
# on Windows we can provide also the creation time
try:
retfacts['create'] = time.strftime("%Y%m%d%H%M%S",
timefunc(st.st_ctime))
except ValueError:
pass
# UNIX only
if show_mode:
retfacts['unix.mode'] = oct(st.st_mode & 511)
if show_uid:
retfacts['unix.uid'] = st.st_uid
if show_gid:
retfacts['unix.gid'] = st.st_gid
# We provide unique fact (see RFC-3659, chapter 7.5.2) on
# posix platforms only; we get it by mixing st_dev and
# st_ino values which should be enough for granting an
# uniqueness for the file listed.
# The same approach is used by pure-ftpd.
# Implementors who want to provide unique fact on other
# platforms should use some platform-specific method (e.g.
# on Windows NTFS filesystems MTF records could be used).
if show_unique:
retfacts['unique'] = "%xg%x" % (st.st_dev, st.st_ino)
# facts can be in any order but we sort them by name
factstring = "".join(["%s=%s;" % (x, retfacts[x]) \
for x in sorted(retfacts.keys())])
line = "%s %s\r\n" % (factstring, basename)
yield line.encode('utf8', self.cmd_channel.unicode_errors)
def format_list(self, basedir, listing, ignore_err=True):
"""Return an iterator object that yields the entries of given
directory emulating the "/bin/ls -lA" UNIX command output.
- (str) basedir: the absolute dirname.
- (list) listing: the names of the entries in basedir
- (bool) ignore_err: when False raise exception if os.lstat()
call fails.
On platforms which do not support the pwd and grp modules (such
as Windows), ownership is printed as "owner" and "group" as a
default, and number of hard links is always "1". On UNIX
systems, the actual owner, group, and number of links are
printed.
This is how output appears to client:
-rw-rw-rw- 1 owner group 7045120 Sep 02 3:47 music.mp3
drwxrwxrwx 1 owner group 0 Aug 31 18:50 e-books
-rw-rw-rw- 1 owner group 380 Sep 02 3:40 module.py
"""
assert isinstance(basedir, unicode), basedir
if listing:
assert isinstance(listing[0], unicode)
if self.cmd_channel.use_gmt_times:
timefunc = time.gmtime
else:
timefunc = time.localtime
SIX_MONTHS = 180 * 24 * 60 * 60
readlink = getattr(self, 'readlink', None)
now = time.time()
for basename in listing:
if not PY3:
try:
file = os.path.join(basedir, basename)
except UnicodeDecodeError:
# (Python 2 only) might happen on filesystem not
# supporting UTF8 meaning os.listdir() returned a list
# of mixed bytes and unicode strings:
# http://goo.gl/6DLHD
# http://bugs.python.org/issue683592
file = os.path.join(bytes(basedir), bytes(basename))
if not isinstance(basename, unicode):
basename = unicode(basename, 'utf8')
else:
file = os.path.join(basedir, basename)
try:
st = self.lstat(file)
except (OSError, FilesystemError):
if ignore_err:
continue
raise
perms = _filemode(st.st_mode) # permissions
nlinks = st.st_nlink # number of links to inode
if not nlinks: # non-posix system, let's use a bogus value
nlinks = 1
size = st.st_size # file size
uname = self.get_user_by_uid(st.st_uid)
gname = self.get_group_by_gid(st.st_gid)
mtime = timefunc(st.st_mtime)
# if modification time > 6 months shows "month year"
# else "month hh:mm"; this matches proftpd format, see:
# http://code.google.com/p/pyftpdlib/issues/detail?id=187
if (now - st.st_mtime) > SIX_MONTHS:
fmtstr = "%d %Y"
else:
fmtstr = "%d %H:%M"
try:
mtimestr = "%s %s" % (_months_map[mtime.tm_mon],
time.strftime(fmtstr, mtime))
except ValueError:
# It could be raised if last mtime happens to be too
# old (prior to year 1900) in which case we return
# the current time as last mtime.
mtime = timefunc()
mtimestr = "%s %s" % (_months_map[mtime.tm_mon],
time.strftime("%d %H:%M", mtime))
# same as stat.S_ISLNK(st.st_mode) but slighlty faster
islink = (st.st_mode & 61440) == stat.S_IFLNK
if islink and readlink is not None:
# if the file is a symlink, resolve it, e.g.
# "symlink -> realfile"
try:
basename = basename + " -> " + readlink(file)
except (OSError, FilesystemError):
if not ignore_err:
raise
# formatting is matched with proftpd ls output
line = "%s %3s %-8s %-8s %8s %s %s\r\n" % (
perms, nlinks, uname, gname, size, mtimestr, basename)
yield line.encode('utf8', self.cmd_channel.unicode_errors)