1 # -*- encoding: utf-8 -*-
4 from tarfile import filemode
16 from service import security
18 #from document.nodes import node_res_dir, node_res_obj
19 from document.nodes import get_node_context
22 def _get_month_name(month):
24 if month==1:return 'Jan'
25 elif month==2:return 'Feb'
26 elif month==3:return 'Mar'
27 elif month==4:return 'Apr'
28 elif month==5:return 'May'
29 elif month==6:return 'Jun'
30 elif month==7:return 'Jul'
31 elif month==8:return 'Aug'
32 elif month==9:return 'Sep'
33 elif month==10:return 'Oct'
34 elif month==11:return 'Nov'
35 elif month==12:return 'Dec'
37 from ftpserver import _to_decode, _to_unicode
40 class abstracted_fs(object):
41 """A class used to interact with the file system, providing a high
42 level, cross-platform interface compatible with both Windows and
43 UNIX style filesystems.
45 It provides some utility methods and some wraps around operations
46 involved in file creation and file system operations like moving
47 files or removing directories.
50 - (str) root: the user home directory.
51 - (str) cwd: the current working directory.
52 - (str) rnfr: source file to be renamed.
61 self._log = logging.getLogger('FTP.fs')
65 """Get the list of available databases, with FTPd support
67 s = netsvc.ExportService.getService('db')
68 result = s.exp_list(document=True)
69 self.db_name_list = []
70 for db_name in result:
74 db = pooler.get_db_only(db_name)
76 cr.execute("SELECT 1 FROM pg_class WHERE relkind = 'r' AND relname = 'ir_module_module'")
80 cr.execute("SELECT id FROM ir_module_module WHERE name = 'document_ftp' AND state IN ('installed', 'to upgrade') ")
83 self.db_name_list.append(db_name)
86 self._log.warning('Cannot use db "%s"', db_name)
91 # pooler.close_db(db_name)
92 return self.db_name_list
94 def ftpnorm(self, ftppath):
95 """Normalize a "virtual" ftp pathname (tipically the raw string
98 Pathname returned is relative!.
100 p = os.path.normpath(ftppath)
101 # normalize string in a standard web-path notation having '/'
102 # as separator. xrg: is that really in the spec?
103 p = p.replace("\\", "/")
104 # os.path.normpath supports UNC paths (e.g. "//a/b/c") but we
105 # don't need them. In case we get an UNC path we collapse
106 # redundant separators appearing at the beginning of the string
114 """ return the cwd, decoded in utf"""
115 return _to_decode(self.cwd)
117 def ftp2fs(self, path_orig, data):
118 raise DeprecationWarning()
120 def fs2ftp(self, node):
121 """ Return the string path of a node, in ftp form
125 paths = node.full_path()
126 res = '/' + node.context.dbname + '/' + \
127 _to_decode(os.path.join(*paths))
131 def validpath(self, path):
132 """Check whether the path belongs to user's home directory.
133 Expected argument is a datacr tuple
135 # TODO: are we called for "/" ?
136 return isinstance(path, tuple) and path[1] and True or False
138 # --- Wrapper methods around open() and tempfile.mkstemp
140 def create(self, datacr, objname, mode):
141 """ Create a children file-node under node, open it
142 @return open node_descriptor of the created node
144 objname = _to_unicode(objname)
145 cr , node, rem = datacr
147 child = node.child(cr, objname)
149 if child.type not in ('file','content'):
150 raise OSError(1, 'Operation not permited.')
152 ret = child.open_data(cr, mode)
155 except EnvironmentError:
158 self._log.exception('Cannot locate item %s at node %s', objname, repr(node))
162 child = node.create_child(cr, objname, data=None)
163 ret = child.open_data(cr, mode)
166 except EnvironmentError:
169 self._log.exception('Cannot create item %s at node %s', objname, repr(node))
170 raise OSError(1, 'Operation not permited.')
172 def open(self, datacr, mode):
173 if not (datacr and datacr[1]):
174 raise OSError(1, 'Operation not permited.')
176 cr, node, rem = datacr
178 res = node.open_data(cr, mode)
181 raise IOError(errno.EINVAL, "No data")
184 # ok, but need test more
186 def mkstemp(self, suffix='', prefix='', dir=None, mode='wb'):
187 """A wrap around tempfile.mkstemp creating a file with a unique
188 name. Unlike mkstemp it returns an object with a file-like
191 raise NotImplementedError
193 text = not 'b' in mode
194 # for unique file , maintain version if duplicate file
199 pool = pooler.get_pool(node.context.dbname)
200 object=dir and dir.object or False
201 object2=dir and dir.object2 or False
202 res=pool.get('ir.attachment').search(cr,uid,[('name','like',prefix),('parent_id','=',object and object.type in ('directory','ressource') and object.id or False),('res_id','=',object2 and object2.id or False),('res_model','=',object2 and object2._name or False)])
204 pre = prefix.split('.')
205 prefix=pre[0] + '.v'+str(len(res))+'.'+pre[1]
206 #prefix = prefix + '.'
207 return self.create(dir,suffix+prefix,text)
212 def chdir(self, datacr):
213 if (not datacr) or datacr == (None, None, None):
218 raise OSError(1, 'Operation not permitted')
219 if datacr[1].type not in ('collection','database'):
220 raise OSError(2, 'Path is not a directory')
221 self.cwd = '/'+datacr[1].context.dbname + '/'
222 self.cwd += '/'.join(datacr[1].full_path())
223 self.cwd_node = datacr[1]
226 def mkdir(self, datacr, basename):
227 """Create the specified directory."""
228 cr, node, rem = datacr or (None, None, None)
230 raise OSError(1, 'Operation not permited.')
233 basename =_to_unicode(basename)
234 cdir = node.create_child_collection(cr, basename)
235 self._log.debug("Created child dir: %r", cdir)
238 self._log.exception('Cannot create dir "%s" at node %s', basename, repr(node))
239 raise OSError(1, 'Operation not permited.')
241 def close_cr(self, data):
246 def get_cr(self, pathname):
247 raise DeprecationWarning()
249 def get_crdata(self, line, mode='file'):
250 """ Get database cursor, node and remainder data, for commands
252 This is the helper function that will prepare the arguments for
253 any of the subsequent commands.
254 It returns a tuple in the form of:
255 @code ( cr, node, rem_path=None )
257 @param line An absolute or relative ftp path, as passed to the cmd.
258 @param mode A word describing the mode of operation, so that this
259 function behaves properly in the different commands.
261 path = self.ftpnorm(line)
262 if self.cwd_node is None:
263 if not os.path.isabs(path):
264 path = os.path.join(self.root, path)
266 if path == '/' and mode in ('list', 'cwd'):
267 return (None, None, None )
269 path = _to_unicode(os.path.normpath(path)) # again, for '/db/../ss'
270 if path == '.': path = ''
272 if os.path.isabs(path) and self.cwd_node is not None \
273 and path.startswith(self.cwd):
274 # make relative, so that cwd_node is used again
275 path = path[len(self.cwd):]
276 if path.startswith('/'):
279 p_parts = path.split('/') # hard-code the unix sep here, by spec.
281 assert '..' not in p_parts
284 if mode in ('create',):
285 rem_path = p_parts[-1]
286 p_parts = p_parts[:-1]
288 if os.path.isabs(path):
289 # we have to start from root, again
290 while p_parts[0] == '':
291 p_parts = p_parts[1:]
292 # self._log.debug("Path parts: %r ", p_parts)
294 raise IOError(errno.EPERM, 'Cannot perform operation at root dir')
296 if dbname not in self.db_list():
297 raise IOError(errno.ENOENT,'Invalid database path')
299 db = pooler.get_db(dbname)
301 raise OSError(1, 'Database cannot be used.')
304 uid = security.login(dbname, self.username, self.password)
310 raise OSError(2, 'Authentification Required.')
311 n = get_node_context(cr, uid, {})
312 node = n.get_uri(cr, p_parts[1:])
313 # self._log.debug("get_crdata(abs): %r" % ( (cr, node, rem_path),))
314 return (cr, node, rem_path)
316 # we never reach here if cwd_node is not set
317 if p_parts and p_parts[-1] == '':
318 p_parts = p_parts[:-1]
319 cr, uid = self.get_node_cr_uid(self.cwd_node)
321 node = self.cwd_node.get_uri(cr, p_parts)
324 if node is False and mode not in ('???'):
326 raise IOError(errno.ENOENT, 'Path does not exist')
327 # self._log.debug("get_crdata(rel): %r" % ( (cr, node, rem_path),))
328 return (cr, node, rem_path)
330 def get_node_cr_uid(self, node):
331 """ Get cr, uid, pool from a node
334 db = pooler.get_db(node.context.dbname)
335 return db.cursor(), node.context.uid
337 def get_node_cr(self, node):
338 """ Get the cursor for the database of a node
340 The cursor is the only thing that a node will not store
341 persistenly, so we have to obtain a new one for each call.
343 return self.get_node_cr_uid(node)[0]
345 def listdir(self, datacr):
346 """List the content of a directory."""
347 class false_node(object):
356 def __init__(self, db):
359 if datacr[1] is None:
361 for db in self.db_list():
363 result.append(false_node(db))
364 except osv.except_osv:
367 cr, node, rem = datacr
368 res = node.children(cr)
371 def rmdir(self, datacr):
372 """Remove the specified directory."""
373 cr, node, rem = datacr
375 cr = self.get_node_cr(node)
379 def remove(self, datacr):
381 if datacr[1].type == 'collection':
382 return self.rmdir(datacr)
383 elif datacr[1].type == 'file':
384 return self.rmfile(datacr)
385 raise OSError(1, 'Operation not permited.')
387 def rmfile(self, datacr):
388 """Remove the specified file."""
394 def rename(self, src, datacr):
395 """ Renaming operation, the effect depends on the src:
396 * A file: read, create and remove
397 * A directory: change the parent and reassign childs to ressource
401 nname = _to_unicode(datacr[2])
402 ret = src.move_to(cr, datacr[1], new_name=nname)
403 # API shouldn't wait for us to write the object
404 assert (ret is True) or (ret is False)
406 except Exception,err:
407 self._log.exception('Cannot rename "%s" to "%s" at "%s"', src, datacr[2], datacr[1])
408 raise OSError(1,'Operation not permited.')
410 def stat(self, node):
411 raise NotImplementedError()
413 # --- Wrapper methods around os.path.*
416 def isfile(self, node):
417 if node and (node.type in ('file','content')):
422 def islink(self, path):
423 """Return True if path is a symbolic link."""
426 def isdir(self, node):
427 """Return True if path is a directory."""
430 if node and (node.type in ('collection','database')):
434 def getsize(self, datacr):
435 """Return the size of the specified file in bytes."""
436 if not (datacr and datacr[1]):
437 raise IOError(errno.ENOENT, "No such file or directory")
438 if datacr[1].type in ('file', 'content'):
439 return datacr[1].get_data_len(datacr[0]) or 0L
443 def getmtime(self, datacr):
444 """Return the last modified time as a number of seconds since
448 if node.write_date or node.create_date:
449 dt = (node.write_date or node.create_date)[:19]
450 result = time.mktime(time.strptime(dt, '%Y-%m-%d %H:%M:%S'))
452 result = time.mktime(time.localtime())
456 def realpath(self, path):
457 """Return the canonical version of path eliminating any
458 symbolic links encountered in the path (if they are
459 supported by the operating system).
464 def lexists(self, path):
465 """Return True if path refers to an existing path, including
466 a broken or circular symbolic link.
468 raise DeprecationWarning()
469 return path and True or False
473 # Ok, can be improved
474 def glob1(self, dirname, pattern):
475 """Return a list of files matching a dirname pattern
478 Unlike glob.glob1 raises exception if os.listdir() fails.
480 names = self.listdir(dirname)
481 if pattern[0] != '.':
482 names = filter(lambda x: x.path[0] != '.', names)
483 return fnmatch.filter(names, pattern)
485 # --- Listing utilities
487 # note: the following operations are no more blocking
489 def get_list_dir(self, datacr):
490 """"Return an iterator object that yields a directory listing
491 in a form suitable for LIST command.
495 elif self.isdir(datacr[1]):
496 listing = self.listdir(datacr)
498 return self.format_list(datacr[0], datacr[1], listing)
499 # if path is a file or a symlink we return information about it
500 elif self.isfile(datacr[1]):
501 par = datacr[1].parent
502 return self.format_list(datacr[0], par, [datacr[1]])
504 def get_stat_dir(self, rawline, datacr):
505 """Return an iterator object that yields a list of files
506 matching a dirname pattern non-recursively in a form
507 suitable for STAT command.
509 - (str) rawline: the raw string passed by client as command
512 ftppath = self.ftpnorm(rawline)
513 if not glob.has_magic(ftppath):
514 return self.get_list_dir(self.ftp2fs(rawline, datacr))
516 basedir, basename = os.path.split(ftppath)
517 if glob.has_magic(basedir):
518 return iter(['Directory recursion not supported.\r\n'])
520 basedir = self.ftp2fs(basedir, datacr)
521 listing = self.glob1(basedir, basename)
524 return self.format_list(basedir, listing)
526 def format_list(self, cr, parent_node, listing, ignore_err=True):
527 """Return an iterator object that yields the entries of given
528 directory emulating the "/bin/ls -lA" UNIX command output.
530 - (str) basedir: the parent directory node. Can be None
531 - (list) listing: a list of nodes
532 - (bool) ignore_err: when False raise exception if os.lstat()
535 On platforms which do not support the pwd and grp modules (such
536 as Windows), ownership is printed as "owner" and "group" as a
537 default, and number of hard links is always "1". On UNIX
538 systems, the actual owner, group, and number of links are
541 This is how output appears to client:
543 -rw-rw-rw- 1 owner group 7045120 Sep 02 3:47 music.mp3
544 drwxrwxrwx 1 owner group 0 Aug 31 18:50 e-books
545 -rw-rw-rw- 1 owner group 380 Sep 02 3:40 module.py
548 perms = filemode(node.unixperms) # permissions
550 size = node.content_length or 0L
551 uname = _to_decode(node.uuser)
552 gname = _to_decode(node.ugroup)
553 # stat.st_mtime could fail (-1) if last mtime is too old
554 # in which case we return the local time as last mtime
556 st_mtime = node.write_date or 0.0
557 if isinstance(st_mtime, basestring):
558 st_mtime = time.strptime(st_mtime, '%Y-%m-%d %H:%M:%S')
559 elif isinstance(st_mtime, float):
560 st_mtime = time.localtime(st_mtime)
561 mname=_get_month_name(time.strftime("%m", st_mtime ))
562 mtime = mname+' '+time.strftime("%d %H:%M", st_mtime)
564 mname=_get_month_name(time.strftime("%m"))
565 mtime = mname+' '+time.strftime("%d %H:%M")
567 if isinstance(fpath, (list, tuple)):
569 # formatting is matched with proftpd ls output
570 path=_to_decode(fpath)
571 yield "%s %3s %-8s %-8s %8s %s %s\r\n" %(perms, nlinks, uname, gname,
575 def format_mlsx(self, cr, basedir, listing, perms, facts, ignore_err=True):
576 """Return an iterator object that yields the entries of a given
577 directory or of a single file in a form suitable with MLSD and
580 Every entry includes a list of "facts" referring the listed
581 element. See RFC-3659, chapter 7, to see what every single
584 - (str) basedir: the absolute dirname.
585 - (list) listing: the names of the entries in basedir
586 - (str) perms: the string referencing the user permissions.
587 - (str) facts: the list of "facts" to be returned.
588 - (bool) ignore_err: when False raise exception if os.stat()
591 Note that "facts" returned may change depending on the platform
592 and on what user specified by using the OPTS command.
594 This is how output could appear to the client issuing
597 type=file;size=156;perm=r;modify=20071029155301;unique=801cd2; music.mp3
598 type=dir;size=0;perm=el;modify=20071127230206;unique=801e33; ebooks
599 type=file;size=211;perm=r;modify=20071103093626;unique=801e32; module.py
601 permdir = ''.join([x for x in perms if x not in 'arw'])
602 permfile = ''.join([x for x in perms if x not in 'celmp'])
603 if ('w' in perms) or ('a' in perms) or ('f' in perms):
607 type = size = perm = modify = create = unique = mode = uid = gid = ""
614 perm = 'perm=%s;' %permdir
619 perm = 'perm=%s;' %permfile
621 size = 'size=%s;' % (node.content_length or 0L)
622 # last modification time
623 if 'modify' in facts:
625 st_mtime = node.write_date or 0.0
626 if isinstance(st_mtime, basestring):
627 st_mtime = time.strptime(st_mtime, '%Y-%m-%d %H:%M:%S')
628 elif isinstance(st_mtime, float):
629 st_mtime = time.localtime(st_mtime)
630 modify = 'modify=%s;' %time.strftime("%Y%m%d%H%M%S", st_mtime)
632 # stat.st_mtime could fail (-1) if last mtime is too old
634 if 'create' in facts:
635 # on Windows we can provide also the creation time
637 st_ctime = node.create_date or 0.0
638 if isinstance(st_ctime, basestring):
639 st_ctime = time.strptime(st_ctime, '%Y-%m-%d %H:%M:%S')
640 elif isinstance(st_mtime, float):
641 st_ctime = time.localtime(st_ctime)
642 create = 'create=%s;' %time.strftime("%Y%m%d%H%M%S",st_ctime)
646 if 'unix.mode' in facts:
647 mode = 'unix.mode=%s;' %oct(node.unixperms & 0777)
648 if 'unix.uid' in facts:
649 uid = 'unix.uid=%s;' % _to_decode(node.uuser)
650 if 'unix.gid' in facts:
651 gid = 'unix.gid=%s;' % _to_decode(node.ugroup)
652 # We provide unique fact (see RFC-3659, chapter 7.5.2) on
653 # posix platforms only; we get it by mixing st_dev and
654 # st_ino values which should be enough for granting an
655 # uniqueness for the file listed.
656 # The same approach is used by pure-ftpd.
657 # Implementors who want to provide unique fact on other
658 # platforms should use some platform-specific method (e.g.
659 # on Windows NTFS filesystems MTF records could be used).
660 # if 'unique' in facts: todo
661 # unique = "unique=%x%x;" %(st.st_dev, st.st_ino)
663 if isinstance (path, (list, tuple)):
665 path=_to_decode(path)
666 yield "%s%s%s%s%s%s%s%s%s %s\r\n" %(type, size, perm, modify, create,
667 mode, uid, gid, unique, path)
669 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: