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'
39 return s.decode('utf-8')
42 return s.decode('latin')
45 return s.encode('ascii')
51 return s.encode('utf-8')
54 return s.encode('latin')
57 return s.decode('ascii')
61 class abstracted_fs(object):
62 """A class used to interact with the file system, providing a high
63 level, cross-platform interface compatible with both Windows and
64 UNIX style filesystems.
66 It provides some utility methods and some wraps around operations
67 involved in file creation and file system operations like moving
68 files or removing directories.
71 - (str) root: the user home directory.
72 - (str) cwd: the current working directory.
73 - (str) rnfr: source file to be renamed.
82 self._log = logging.getLogger('FTP.fs')
86 """Get the list of available databases, with FTPd support
88 s = netsvc.ExportService.getService('db')
89 result = s.exp_list(document=True)
90 self.db_name_list = []
91 for db_name in result:
95 db = pooler.get_db_only(db_name)
97 cr.execute("SELECT 1 FROM pg_class WHERE relkind = 'r' AND relname = 'ir_module_module'")
101 cr.execute("SELECT id FROM ir_module_module WHERE name = 'document_ftp' AND state='installed' ")
104 self.db_name_list.append(db_name)
107 self._log.warning('Cannot use db "%s"', db_name)
112 # pooler.close_db(db_name)
113 return self.db_name_list
115 def ftpnorm(self, ftppath):
116 """Normalize a "virtual" ftp pathname (tipically the raw string
119 Pathname returned is relative!.
121 p = os.path.normpath(ftppath)
122 # normalize string in a standard web-path notation having '/'
123 # as separator. xrg: is that really in the spec?
124 p = p.replace("\\", "/")
125 # os.path.normpath supports UNC paths (e.g. "//a/b/c") but we
126 # don't need them. In case we get an UNC path we collapse
127 # redundant separators appearing at the beginning of the string
135 """ return the cwd, decoded in utf"""
136 return _to_decode(self.cwd)
138 def ftp2fs(self, path_orig, data):
139 raise DeprecationWarning()
141 def fs2ftp(self, node):
142 """ Return the string path of a node, in ftp form
146 paths = node.full_path()
147 res = '/' + node.context.dbname + '/' + \
148 _to_decode(os.path.join(*paths))
152 def validpath(self, path):
153 """Check whether the path belongs to user's home directory.
154 Expected argument is a datacr tuple
156 # TODO: are we called for "/" ?
157 return isinstance(path, tuple) and path[1] and True or False
159 # --- Wrapper methods around open() and tempfile.mkstemp
161 def create(self, datacr, objname, mode):
162 """ Create a children file-node under node, open it
163 @return open node_descriptor of the created node
165 objname = _to_unicode(objname)
166 cr , node, rem = datacr
168 child = node.child(cr, objname)
170 if child.type not in ('file','content'):
171 raise OSError(1, 'Operation not permited.')
173 ret = child.open_data(cr, mode)
175 except EnvironmentError:
178 self._log.exception('Cannot locate item %s at node %s', objname, repr(node))
182 child = node.create_child(cr, objname, data=None)
183 return child.open_data(cr, mode)
185 self._log.exception('Cannot create item %s at node %s', objname, repr(node))
186 raise OSError(1, 'Operation not permited.')
188 def open(self, datacr, mode):
189 if not (datacr and datacr[1]):
190 raise OSError(1, 'Operation not permited.')
192 cr, node, rem = datacr
193 res = node.open_data(cr, mode)
196 # ok, but need test more
198 def mkstemp(self, suffix='', prefix='', dir=None, mode='wb'):
199 """A wrap around tempfile.mkstemp creating a file with a unique
200 name. Unlike mkstemp it returns an object with a file-like
203 raise NotImplementedError
205 text = not 'b' in mode
206 # for unique file , maintain version if duplicate file
211 pool = pooler.get_pool(node.context.dbname)
212 object=dir and dir.object or False
213 object2=dir and dir.object2 or False
214 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)])
216 pre = prefix.split('.')
217 prefix=pre[0] + '.v'+str(len(res))+'.'+pre[1]
218 #prefix = prefix + '.'
219 return self.create(dir,suffix+prefix,text)
224 def chdir(self, datacr):
225 if (not datacr) or datacr == (None, None, None):
230 raise OSError(1, 'Operation not permitted')
231 if datacr[1].type not in ('collection','database'):
232 raise OSError(2, 'Path is not a directory')
233 self.cwd = '/'+datacr[1].context.dbname + '/'
234 self.cwd += '/'.join(datacr[1].full_path())
235 self.cwd_node = datacr[1]
238 def mkdir(self, datacr, basename):
239 """Create the specified directory."""
240 cr, node, rem = datacr or (None, None, None)
242 raise OSError(1, 'Operation not permited.')
245 basename =_to_unicode(basename)
246 cdir = node.create_child_collection(cr, basename)
247 self._log.debug("Created child dir: %r", cdir)
250 self._log.exception('Cannot create dir "%s" at node %s', basename, repr(node))
251 raise OSError(1, 'Operation not permited.')
253 def close_cr(self, data):
258 def get_cr(self, pathname):
259 raise DeprecationWarning()
261 def get_crdata(self, line, mode='file'):
262 """ Get database cursor, node and remainder data, for commands
264 This is the helper function that will prepare the arguments for
265 any of the subsequent commands.
266 It returns a tuple in the form of:
267 @code ( cr, node, rem_path=None )
269 @param line An absolute or relative ftp path, as passed to the cmd.
270 @param mode A word describing the mode of operation, so that this
271 function behaves properly in the different commands.
273 path = self.ftpnorm(line)
274 if self.cwd_node is None:
275 if not os.path.isabs(path):
276 path = os.path.join(self.root, path)
278 if path == '/' and mode in ('list', 'cwd'):
279 return (None, None, None )
281 path = os.path.normpath(path) # again, for '/db/../ss'
282 if path == '.': path = ''
284 if os.path.isabs(path) and self.cwd_node is not None \
285 and path.startswith(self.cwd):
286 # make relative, so that cwd_node is used again
287 path = path[len(self.cwd):]
288 if path.startswith('/'):
291 p_parts = path.split('/') # hard-code the unix sep here, by spec.
293 assert '..' not in p_parts
296 if mode in ('create',):
297 rem_path = p_parts[-1]
298 p_parts = p_parts[:-1]
300 if os.path.isabs(path):
301 # we have to start from root, again
302 p_parts = p_parts[1:]
304 if dbname not in self.db_list():
307 db = pooler.get_db(dbname)
309 raise OSError(1, 'Database cannot be used.')
312 uid = security.login(dbname, self.username, self.password)
318 raise OSError(2, 'Authentification Required.')
319 n = get_node_context(cr, uid, {})
320 node = n.get_uri(cr, p_parts[1:])
321 return (cr, node, rem_path)
323 # we never reach here if cwd_node is not set
324 if p_parts and p_parts[-1] == '':
325 p_parts = p_parts[:-1]
326 cr, uid = self.get_node_cr_uid(self.cwd_node)
328 node = self.cwd_node.get_uri(cr, p_parts)
331 if node is False and mode not in ('???'):
333 raise IOError(errno.ENOENT, 'Path does not exist')
334 return (cr, node, rem_path)
336 def get_node_cr_uid(self, node):
337 """ Get cr, uid, pool from a node
340 db = pooler.get_db(node.context.dbname)
341 return db.cursor(), node.context.uid
343 def get_node_cr(self, node):
344 """ Get the cursor for the database of a node
346 The cursor is the only thing that a node will not store
347 persistenly, so we have to obtain a new one for each call.
349 return self.get_node_cr_uid(node)[0]
351 def listdir(self, datacr):
352 """List the content of a directory."""
353 class false_node(object):
362 def __init__(self, db):
365 if datacr[1] is None:
367 for db in self.db_list():
369 result.append(false_node(db))
370 except osv.except_osv:
373 cr, node, rem = datacr
374 res = node.children(cr)
377 def rmdir(self, datacr):
378 """Remove the specified directory."""
379 cr, node, rem = datacr
381 cr = self.get_node_cr(node)
385 def remove(self, datacr):
387 if datacr[1].type == 'collection':
388 return self.rmdir(datacr)
389 elif datacr[1].type == 'file':
390 return self.rmfile(datacr)
391 raise OSError(1, 'Operation not permited.')
393 def rmfile(self, datacr):
394 """Remove the specified file."""
400 def rename(self, src, datacr):
401 """ Renaming operation, the effect depends on the src:
402 * A file: read, create and remove
403 * A directory: change the parent and reassign childs to ressource
407 nname = _to_unicode(datacr[2])
408 ret = src.move_to(cr, datacr[1], new_name=nname)
409 # API shouldn't wait for us to write the object
410 assert (ret is True) or (ret is False)
412 except Exception,err:
413 self._log.exception('Cannot rename "%s" to "%s" at "%s"', src, dst_basename, dst_basedir)
414 raise OSError(1,'Operation not permited.')
416 def stat(self, node):
417 raise NotImplementedError()
419 # --- Wrapper methods around os.path.*
422 def isfile(self, node):
423 if node and (node.type in ('file','content')):
428 def islink(self, path):
429 """Return True if path is a symbolic link."""
432 def isdir(self, node):
433 """Return True if path is a directory."""
436 if node and (node.type in ('collection','database')):
440 def getsize(self, datacr):
441 """Return the size of the specified file in bytes."""
442 if not (datacr and datacr[1]):
444 if datacr[1].type in ('file', 'content'):
445 return datacr[1].content_length or 0L
449 def getmtime(self, datacr):
450 """Return the last modified time as a number of seconds since
454 if node.write_date or node.create_date:
455 dt = (node.write_date or node.create_date)[:19]
456 result = time.mktime(time.strptime(dt, '%Y-%m-%d %H:%M:%S'))
458 result = time.mktime(time.localtime())
462 def realpath(self, path):
463 """Return the canonical version of path eliminating any
464 symbolic links encountered in the path (if they are
465 supported by the operating system).
470 def lexists(self, path):
471 """Return True if path refers to an existing path, including
472 a broken or circular symbolic link.
474 raise DeprecationWarning()
475 return path and True or False
479 # Ok, can be improved
480 def glob1(self, dirname, pattern):
481 """Return a list of files matching a dirname pattern
484 Unlike glob.glob1 raises exception if os.listdir() fails.
486 names = self.listdir(dirname)
487 if pattern[0] != '.':
488 names = filter(lambda x: x.path[0] != '.', names)
489 return fnmatch.filter(names, pattern)
491 # --- Listing utilities
493 # note: the following operations are no more blocking
495 def get_list_dir(self, datacr):
496 """"Return an iterator object that yields a directory listing
497 in a form suitable for LIST command.
501 elif self.isdir(datacr[1]):
502 listing = self.listdir(datacr)
504 return self.format_list(datacr[0], datacr[1], listing)
505 # if path is a file or a symlink we return information about it
506 elif self.isfile(datacr[1]):
507 par = datacr[1].parent
508 return self.format_list(datacr[0], par, [datacr[1]])
510 def get_stat_dir(self, rawline, datacr):
511 """Return an iterator object that yields a list of files
512 matching a dirname pattern non-recursively in a form
513 suitable for STAT command.
515 - (str) rawline: the raw string passed by client as command
518 ftppath = self.ftpnorm(rawline)
519 if not glob.has_magic(ftppath):
520 return self.get_list_dir(self.ftp2fs(rawline, datacr))
522 basedir, basename = os.path.split(ftppath)
523 if glob.has_magic(basedir):
524 return iter(['Directory recursion not supported.\r\n'])
526 basedir = self.ftp2fs(basedir, datacr)
527 listing = self.glob1(basedir, basename)
530 return self.format_list(basedir, listing)
532 def format_list(self, cr, parent_node, listing, ignore_err=True):
533 """Return an iterator object that yields the entries of given
534 directory emulating the "/bin/ls -lA" UNIX command output.
536 - (str) basedir: the parent directory node. Can be None
537 - (list) listing: a list of nodes
538 - (bool) ignore_err: when False raise exception if os.lstat()
541 On platforms which do not support the pwd and grp modules (such
542 as Windows), ownership is printed as "owner" and "group" as a
543 default, and number of hard links is always "1". On UNIX
544 systems, the actual owner, group, and number of links are
547 This is how output appears to client:
549 -rw-rw-rw- 1 owner group 7045120 Sep 02 3:47 music.mp3
550 drwxrwxrwx 1 owner group 0 Aug 31 18:50 e-books
551 -rw-rw-rw- 1 owner group 380 Sep 02 3:40 module.py
554 perms = filemode(node.unixperms) # permissions
556 size = node.content_length or 0L
559 # stat.st_mtime could fail (-1) if last mtime is too old
560 # in which case we return the local time as last mtime
562 st_mtime = node.write_date or 0.0
563 if isinstance(st_mtime, basestring):
564 st_mtime = time.strptime(st_mtime, '%Y-%m-%d %H:%M:%S')
565 elif isinstance(st_mtime, float):
566 st_mtime = time.localtime(st_mtime)
567 mname=_get_month_name(time.strftime("%m", st_mtime ))
568 mtime = mname+' '+time.strftime("%d %H:%M", st_mtime)
570 mname=_get_month_name(time.strftime("%m"))
571 mtime = mname+' '+time.strftime("%d %H:%M")
573 if isinstance(fpath, (list, tuple)):
575 # formatting is matched with proftpd ls output
576 path=_to_decode(fpath)
577 yield "%s %3s %-8s %-8s %8s %s %s\r\n" %(perms, nlinks, uname, gname,
581 def format_mlsx(self, cr, basedir, listing, perms, facts, ignore_err=True):
582 """Return an iterator object that yields the entries of a given
583 directory or of a single file in a form suitable with MLSD and
586 Every entry includes a list of "facts" referring the listed
587 element. See RFC-3659, chapter 7, to see what every single
590 - (str) basedir: the absolute dirname.
591 - (list) listing: the names of the entries in basedir
592 - (str) perms: the string referencing the user permissions.
593 - (str) facts: the list of "facts" to be returned.
594 - (bool) ignore_err: when False raise exception if os.stat()
597 Note that "facts" returned may change depending on the platform
598 and on what user specified by using the OPTS command.
600 This is how output could appear to the client issuing
603 type=file;size=156;perm=r;modify=20071029155301;unique=801cd2; music.mp3
604 type=dir;size=0;perm=el;modify=20071127230206;unique=801e33; ebooks
605 type=file;size=211;perm=r;modify=20071103093626;unique=801e32; module.py
607 permdir = ''.join([x for x in perms if x not in 'arw'])
608 permfile = ''.join([x for x in perms if x not in 'celmp'])
609 if ('w' in perms) or ('a' in perms) or ('f' in perms):
613 type = size = perm = modify = create = unique = mode = uid = gid = ""
620 perm = 'perm=%s;' %permdir
625 perm = 'perm=%s;' %permfile
627 size = 'size=%s;' % (node.content_length or 0L)
628 # last modification time
629 if 'modify' in facts:
631 st_mtime = node.write_date or 0.0
632 if isinstance(st_mtime, basestring):
633 st_mtime = time.strptime(st_mtime, '%Y-%m-%d %H:%M:%S')
634 elif isinstance(st_mtime, float):
635 st_mtime = time.localtime(st_mtime)
636 modify = 'modify=%s;' %time.strftime("%Y%m%d%H%M%S", st_mtime)
638 # stat.st_mtime could fail (-1) if last mtime is too old
640 if 'create' in facts:
641 # on Windows we can provide also the creation time
643 st_ctime = node.create_date or 0.0
644 if isinstance(st_ctime, basestring):
645 st_ctime = time.strptime(st_ctime, '%Y-%m-%d %H:%M:%S')
646 elif isinstance(st_mtime, float):
647 st_ctime = time.localtime(st_ctime)
648 create = 'create=%s;' %time.strftime("%Y%m%d%H%M%S",st_ctime)
652 if 'unix.mode' in facts:
653 mode = 'unix.mode=%s;' %oct(node.unixperms & 0777)
654 if 'unix.uid' in facts:
655 uid = 'unix.uid=%s;' % node.uuser
656 if 'unix.gid' in facts:
657 gid = 'unix.gid=%s;' % node.ugroup
658 # We provide unique fact (see RFC-3659, chapter 7.5.2) on
659 # posix platforms only; we get it by mixing st_dev and
660 # st_ino values which should be enough for granting an
661 # uniqueness for the file listed.
662 # The same approach is used by pure-ftpd.
663 # Implementors who want to provide unique fact on other
664 # platforms should use some platform-specific method (e.g.
665 # on Windows NTFS filesystems MTF records could be used).
666 # if 'unique' in facts: todo
667 # unique = "unique=%x%x;" %(st.st_dev, st.st_ino)
669 if isinstance (path, (list, tuple)):
671 path=_to_decode(path)
672 yield "%s%s%s%s%s%s%s%s%s %s\r\n" %(type, size, perm, modify, create,
673 mode, uid, gid, unique, path)
675 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: