From: david-sarah Date: Fri, 14 May 2010 04:31:13 +0000 (-0700) Subject: Update SFTP implementation and tests: fix #1038 and switch to foolscap logging; also... X-Git-Tag: trac-4400~32 X-Git-Url: https://git.rkrishnan.org/pf/content/en/service/?a=commitdiff_plain;h=14d07212466f114742734bc19bb192f85178c565;p=tahoe-lafs%2Ftahoe-lafs.git Update SFTP implementation and tests: fix #1038 and switch to foolscap logging; also some code reorganization. --- diff --git a/src/allmydata/frontends/sftpd.py b/src/allmydata/frontends/sftpd.py index 2abd6b01..1ec674b4 100644 --- a/src/allmydata/frontends/sftpd.py +++ b/src/allmydata/frontends/sftpd.py @@ -1,6 +1,7 @@ -import os, tempfile, heapq, binascii, traceback, sys +import os, tempfile, heapq, binascii, traceback, array, stat from stat import S_IFREG, S_IFDIR +from time import time, strftime, localtime from zope.interface import implements from twisted.python import components @@ -17,7 +18,6 @@ from twisted.conch.openssh_compat import primes from twisted.cred import portal from twisted.internet import defer -from twisted.python.failure import Failure from twisted.internet.interfaces import IFinishableConsumer from foolscap.api import eventually from allmydata.util import deferredutil @@ -37,20 +37,37 @@ warnings.filterwarnings("ignore", category=DeprecationWarning, message="BaseException.message has been deprecated as of Python 2.6", module=".*filetransfer", append=True) -debug = False +noisy = True +use_foolscap_logging = True -if debug: +if use_foolscap_logging: + from allmydata.util.log import msg as logmsg, err as logerr, \ + NOISY, OPERATIONAL, SCARY, PrefixingLogMixin +else: + def logmsg(s, level=None): + print s + def logerr(s, level=None): + print s + NOISY = None + OPERATIONAL = None + SCARY = None + class PrefixingLogMixin: + def __init__(self, facility=None): + pass + def log(self, s, level=None): + print s + +if noisy: def eventually_callback(d): s = traceback.format_stack() def _cb(res): try: - print "CALLBACK %r %r" % (d, res) + if noisy: logmsg("CALLBACK %r %r" % (d, res), level=NOISY) d.callback(res) except: # pragma: no cover - print "Failed to callback %r" % (d,) - print "with %r" % (res,) - print "Original stack:" - print '!' + '!'.join(s) + logerr("Failed to callback %r with %r\n" + "Original stack:\n!%s" % + (d, res, '!'.join(s)), level=SCARY) traceback.print_exc() raise return lambda res: eventually(_cb, res) @@ -59,13 +76,12 @@ if debug: s = traceback.format_stack() def _eb(err): try: - print "ERRBACK", d, err + if noisy: logmsg("ERRBACK %r %r" % (d, err), level=NOISY) d.errback(err) except: # pragma: no cover - print "Failed to errback %r" % (d,) - print "with %r" % (err,) - print "Original stack:" - print '!' + '!'.join(s) + logerr("Failed to errback %r with %r\n" + "Original stack:\n!%s" % + (d, err, '!'.join(s)), level=SCARY) traceback.print_exc() raise return lambda err: eventually(_eb, err) @@ -80,9 +96,8 @@ else: def _raise_error(err): if err is None: return None - if debug: - print "TRACEBACK %r" % (err,) - #traceback.print_exc(err) + if noisy: logmsg("RAISE %r" % (err,), level=NOISY) + #traceback.print_exc(err) # The message argument to SFTPError must not reveal information that # might compromise anonymity. @@ -93,11 +108,8 @@ def _raise_error(err): if err.check(NoSuchChildError): childname = err.value.args[0].encode('utf-8') raise SFTPError(FX_NO_SUCH_FILE, childname) - if err.check(ExistingChildError): - msg = err.value.args[0].encode('utf-8') + if err.check(ExistingChildError) or err.check(NotWriteableError): # later versions of SFTP define FX_FILE_ALREADY_EXISTS, but version 3 doesn't - raise SFTPError(FX_PERMISSION_DENIED, msg) - if err.check(NotWriteableError): msg = err.value.args[0].encode('utf-8') raise SFTPError(FX_PERMISSION_DENIED, msg) if err.check(NotImplementedError): @@ -121,6 +133,64 @@ def _repr_flags(flags): ] if f]) +def _lsLine(name, attrs): + st_uid = "tahoe" + st_gid = "tahoe" + st_mtime = attrs.get("mtime", 0) + st_mode = attrs["permissions"] + # TODO: check that clients are okay with this being a "?". + # (They should be because the longname is intended for human + # consumption.) + st_size = attrs.get("size", "?") + # We don't know how many links there really are to this object. + st_nlink = 1 + + # From . + # We can't call the version in Twisted because we might have a version earlier than + # (released in Twisted 8.2). + + mode = st_mode + perms = array.array('c', '-'*10) + ft = stat.S_IFMT(mode) + if stat.S_ISDIR(ft): perms[0] = 'd' + elif stat.S_ISCHR(ft): perms[0] = 'c' + elif stat.S_ISBLK(ft): perms[0] = 'b' + elif stat.S_ISREG(ft): perms[0] = '-' + elif stat.S_ISFIFO(ft): perms[0] = 'f' + elif stat.S_ISLNK(ft): perms[0] = 'l' + elif stat.S_ISSOCK(ft): perms[0] = 's' + else: perms[0] = '?' + # user + if mode&stat.S_IRUSR:perms[1] = 'r' + if mode&stat.S_IWUSR:perms[2] = 'w' + if mode&stat.S_IXUSR:perms[3] = 'x' + # group + if mode&stat.S_IRGRP:perms[4] = 'r' + if mode&stat.S_IWGRP:perms[5] = 'w' + if mode&stat.S_IXGRP:perms[6] = 'x' + # other + if mode&stat.S_IROTH:perms[7] = 'r' + if mode&stat.S_IWOTH:perms[8] = 'w' + if mode&stat.S_IXOTH:perms[9] = 'x' + # suid/sgid never set + + l = perms.tostring() + l += str(st_nlink).rjust(5) + ' ' + un = str(st_uid) + l += un.ljust(9) + gr = str(st_gid) + l += gr.ljust(9) + sz = str(st_size) + l += sz.rjust(8) + l += ' ' + sixmo = 60 * 60 * 24 * 7 * 26 + if st_mtime + sixmo < time(): # last edited more than 6mo ago + l += strftime("%b %d %Y ", localtime(st_mtime)) + else: + l += strftime("%b %d %H:%M ", localtime(st_mtime)) + l += name + return l + def _populate_attrs(childnode, metadata, writeable, size=None): attrs = {} @@ -179,10 +249,14 @@ def _populate_attrs(childnode, metadata, writeable, size=None): return attrs - -class EncryptedTemporaryFile: +class EncryptedTemporaryFile(PrefixingLogMixin): # not implemented: next, readline, readlines, xreadlines, writelines + def __init__(self): + PrefixingLogMixin.__init__(self, facility="tahoe.sftp") + self.file = tempfile.TemporaryFile() + self.key = os.urandom(16) # AES-128 + def _crypt(self, offset, data): # FIXME: use random-access AES (pycryptopp ticket #18) offset_big = offset // 16 @@ -192,10 +266,6 @@ class EncryptedTemporaryFile: cipher.process("\x00"*offset_small) return cipher.process(data) - def __init__(self): - self.file = tempfile.TemporaryFile() - self.key = os.urandom(16) # AES-128 - def close(self): self.file.close() @@ -203,33 +273,33 @@ class EncryptedTemporaryFile: self.file.flush() def seek(self, offset, whence=os.SEEK_SET): - if debug: print ".seek(%r, %r)" % (offset, whence) + if noisy: self.log(".seek(%r, %r)" % (offset, whence), level=NOISY) self.file.seek(offset, whence) def tell(self): offset = self.file.tell() - if debug: print ".offset = %r" % (offset,) + if noisy: self.log(".tell() = %r" % (offset,), level=NOISY) return offset def read(self, size=-1): - if debug: print ".read(%r)" % (size,) + if noisy: self.log(".read(%r)" % (size,), level=NOISY) index = self.file.tell() ciphertext = self.file.read(size) plaintext = self._crypt(index, ciphertext) return plaintext def write(self, plaintext): - if debug: print ".write(%r)" % (plaintext,) + if noisy: self.log(".write(%r)" % (plaintext,), level=NOISY) index = self.file.tell() ciphertext = self._crypt(index, plaintext) self.file.write(ciphertext) def truncate(self, newsize): - if debug: print ".truncate(%r)" % (newsize,) + if noisy: self.log(".truncate(%r)" % (newsize,), level=NOISY) self.file.truncate(newsize) -class OverwriteableFileConsumer: +class OverwriteableFileConsumer(PrefixingLogMixin): implements(IFinishableConsumer) """I act both as a consumer for the download of the original file contents, and as a wrapper for a temporary file that records the downloaded data and any overwrites. @@ -248,6 +318,7 @@ class OverwriteableFileConsumer: useful for other frontends.""" def __init__(self, check_abort, download_size, tempfile_maker): + PrefixingLogMixin.__init__(self, facility="tahoe.sftp") self.check_abort = check_abort self.download_size = download_size self.current_size = download_size @@ -265,7 +336,8 @@ class OverwriteableFileConsumer: return self.current_size def set_current_size(self, size): - if debug: print "set_current_size(%r), current_size = %r, downloaded = %r" % (size, self.current_size, self.downloaded) + if noisy: self.log(".set_current_size(%r), current_size = %r, downloaded = %r" % + (size, self.current_size, self.downloaded), level=NOISY) if size < self.current_size or size < self.downloaded: self.f.truncate(size) self.current_size = size @@ -284,7 +356,7 @@ class OverwriteableFileConsumer: p.resumeProducing() def write(self, data): - if debug: print "write(%r)" % (data,) + if noisy: self.log(".write(%r)" % (data,), level=NOISY) if self.check_abort(): self.close() return @@ -344,7 +416,7 @@ class OverwriteableFileConsumer: (next, d) = self.milestones[0] if next > milestone: return - if debug: print "MILESTONE %r %r" % (next, d) + if noisy: self.log("MILESTONE %r %r" % (next, d), level=NOISY) heapq.heappop(self.milestones) eventually_callback(d)(None) @@ -352,7 +424,7 @@ class OverwriteableFileConsumer: self.finish() def overwrite(self, offset, data): - if debug: print "overwrite(%r, %r)" % (offset, data) + if noisy: self.log(".overwrite(%r, %r)" % (offset, data), level=NOISY) if offset > self.download_size and offset > self.current_size: # Normally writing at an offset beyond the current end-of-file # would leave a hole that appears filled with zeroes. However, an @@ -376,7 +448,7 @@ class OverwriteableFileConsumer: Otherwise errback the Deferred that we return. The caller must perform no more overwrites until the Deferred has fired.""" - if debug: print "read(%r, %r), current_size = %r" % (offset, length, self.current_size) + if noisy: self.log(".read(%r, %r), current_size = %r" % (offset, length, self.current_size), level=NOISY) if offset >= self.current_size: def _eof(): raise EOFError("read past end of file") return defer.execute(_eof) @@ -392,20 +464,20 @@ class OverwriteableFileConsumer: # then extended. assert self.current_size >= offset + length, (self.current_size, offset, length) - if debug: print "!!! %r" % (self.f,) + if noisy: self.log("self.f = %r" % (self.f,), level=NOISY) self.f.seek(offset) return self.f.read(length) d.addCallback(_reached) return d def when_reached(self, index): - if debug: print "when_reached(%r)" % (index,) + if noisy: self.log(".when_reached(%r)" % (index,), level=NOISY) if index <= self.downloaded: # already reached - if debug: print "already reached %r" % (index,) + if noisy: self.log("already reached %r" % (index,), level=NOISY) return defer.succeed(None) d = defer.Deferred() def _reached(ign): - if debug: print "reached %r" % (index,) + if noisy: self.log("reached %r" % (index,), level=NOISY) return ign d.addCallback(_reached) heapq.heappush(self.milestones, (index, d)) @@ -417,7 +489,7 @@ class OverwriteableFileConsumer: def finish(self): while len(self.milestones) > 0: (next, d) = self.milestones[0] - if debug: print "MILESTONE FINISH %r %r" % (next, d) + if noisy: self.log("MILESTONE FINISH %r %r" % (next, d), level=NOISY) heapq.heappop(self.milestones) # The callback means that the milestone has been reached if # it is ever going to be. Note that the file may have been @@ -440,6 +512,9 @@ class OverwriteableFileConsumer: SIZE_THRESHOLD = 1000 def _make_sftp_file(check_abort, flags, convergence, parent=None, childname=None, filenode=None, metadata=None): + if noisy: logmsg("_make_sftp_file(%r, %r, %r, parent=%r, childname=%r, filenode=%r, metadata=%r" % + (check_abort, flags, convergence, parent, childname, filenode, metadata), NOISY) + if not (flags & (FXF_WRITE | FXF_CREAT)) and (flags & FXF_READ) and filenode and \ not filenode.is_mutable() and filenode.get_size() <= SIZE_THRESHOLD: return ShortReadOnlySFTPFile(filenode, metadata) @@ -448,13 +523,16 @@ def _make_sftp_file(check_abort, flags, convergence, parent=None, childname=None parent=parent, childname=childname, filenode=filenode, metadata=metadata) -class ShortReadOnlySFTPFile: +class ShortReadOnlySFTPFile(PrefixingLogMixin): implements(ISFTPFile) """I represent a file handle to a particular file on an SFTP connection. I am used only for short immutable files opened in read-only mode. The file contents are downloaded to memory when I am created.""" def __init__(self, filenode, metadata): + PrefixingLogMixin.__init__(self, facility="tahoe.sftp") + if noisy: self.log(".__init__(%r, %r)" % (filenode, metadata), level=NOISY) + assert IFileNode.providedBy(filenode), filenode self.filenode = filenode self.metadata = metadata @@ -462,13 +540,15 @@ class ShortReadOnlySFTPFile: self.closed = False def readChunk(self, offset, length): + self.log(".readChunk(%r, %r)" % (offset, length), level=OPERATIONAL) + if self.closed: def _closed(): raise SFTPError(FX_BAD_MESSAGE, "cannot read from a closed file handle") return defer.execute(_closed) d = defer.Deferred() def _read(data): - if debug: print "_read(%r) in readChunk(%r, %r)" % (data, offset, length) + if noisy: self.log("_read(%r) in readChunk(%r, %r)" % (data, offset, length), level=NOISY) # "In response to this request, the server will read as many bytes as it # can from the file (up to 'len'), and return them in a SSH_FXP_DATA @@ -488,15 +568,20 @@ class ShortReadOnlySFTPFile: return d def writeChunk(self, offset, data): + self.log(".writeChunk(%r, )" % (offset, len(data)), level=OPERATIONAL) + def _denied(): raise SFTPError(FX_PERMISSION_DENIED, "file handle was not opened for writing") return defer.execute(_denied) def close(self): + self.log(".close()", level=OPERATIONAL) + self.closed = True return defer.succeed(None) def getAttrs(self): - if debug: print "GETATTRS(file)" + self.log(".getAttrs()", level=OPERATIONAL) + if self.closed: def _closed(): raise SFTPError(FX_BAD_MESSAGE, "cannot get attributes for a closed file handle") return defer.execute(_closed) @@ -504,12 +589,12 @@ class ShortReadOnlySFTPFile: return defer.succeed(_populate_attrs(self.filenode, self.metadata, False)) def setAttrs(self, attrs): - if debug: print "SETATTRS(file) %r" % (attrs,) + self.log(".setAttrs(%r)" % (attrs,), level=OPERATIONAL) def _denied(): raise SFTPError(FX_PERMISSION_DENIED, "file handle was not opened for writing") return defer.execute(_denied) -class GeneralSFTPFile: +class GeneralSFTPFile(PrefixingLogMixin): implements(ISFTPFile) """I represent a file handle to a particular file on an SFTP connection. I wrap an instance of OverwriteableFileConsumer, which is responsible for @@ -519,6 +604,10 @@ class GeneralSFTPFile: implemented by the callback chain of self.async.""" def __init__(self, check_abort, flags, convergence, parent=None, childname=None, filenode=None, metadata=None): + PrefixingLogMixin.__init__(self, facility="tahoe.sftp") + if noisy: self.log(".__init__(%r, %r, %r, parent=%r, childname=%r, filenode=%r, metadata=%r)" % + (check_abort, flags, convergence, parent, childname, filenode, metadata), level=NOISY) + self.check_abort = check_abort self.flags = flags self.convergence = convergence @@ -532,12 +621,12 @@ class GeneralSFTPFile: # self.consumer should only be relied on in callbacks for self.async, since it might # not be set before then. self.consumer = None + tempfile_maker = EncryptedTemporaryFile if (flags & FXF_TRUNC) or not filenode: # We're either truncating or creating the file, so we don't need the old contents. assert flags & FXF_CREAT, flags - self.consumer = OverwriteableFileConsumer(self.check_abort, 0, - tempfile_maker=EncryptedTemporaryFile) + self.consumer = OverwriteableFileConsumer(self.check_abort, 0, tempfile_maker) self.consumer.finish() else: assert IFileNode.providedBy(filenode), filenode @@ -546,8 +635,7 @@ class GeneralSFTPFile: if filenode.is_mutable(): self.async.addCallback(lambda ign: filenode.download_best_version()) def _downloaded(data): - self.consumer = OverwriteableFileConsumer(self.check_abort, len(data), - tempfile_maker=tempfile.TemporaryFile) + self.consumer = OverwriteableFileConsumer(self.check_abort, len(data), tempfile_maker) self.consumer.write(data) self.consumer.finish() return None @@ -555,14 +643,15 @@ class GeneralSFTPFile: else: download_size = filenode.get_size() assert download_size is not None - self.consumer = OverwriteableFileConsumer(self.check_abort, download_size, - tempfile_maker=tempfile.TemporaryFile) + self.consumer = OverwriteableFileConsumer(self.check_abort, download_size, tempfile_maker) self.async.addCallback(lambda ign: filenode.read(self.consumer, 0, None)) - def readChunk(self, offset, length): + self.log(".readChunk(%r, %r)" % (offset, length), level=OPERATIONAL) + if not (self.flags & FXF_READ): - return defer.fail(SFTPError(FX_PERMISSION_DENIED, "file handle was not opened for reading")) + def _denied(): raise SFTPError(FX_PERMISSION_DENIED, "file handle was not opened for reading") + return defer.execute(_denied) if self.closed: def _closed(): raise SFTPError(FX_BAD_MESSAGE, "cannot read from a closed file handle") @@ -570,7 +659,7 @@ class GeneralSFTPFile: d = defer.Deferred() def _read(ign): - if debug: print "_read in readChunk(%r, %r)" % (offset, length) + if noisy: self.log("_read in readChunk(%r, %r)" % (offset, length), level=NOISY) d2 = self.consumer.read(offset, length) d2.addErrback(_raise_error) d2.addCallbacks(eventually_callback(d), eventually_errback(d)) @@ -580,7 +669,8 @@ class GeneralSFTPFile: return d def writeChunk(self, offset, data): - if debug: print "writeChunk(%r, %r)" % (offset, data) + self.log(".writeChunk(%r, )" % (offset, len(data)), level=OPERATIONAL) + if not (self.flags & FXF_WRITE): def _denied(): raise SFTPError(FX_PERMISSION_DENIED, "file handle was not opened for writing") return defer.execute(_denied) @@ -611,6 +701,8 @@ class GeneralSFTPFile: return defer.succeed(None) def close(self): + self.log(".close()", level=OPERATIONAL) + if self.closed: return defer.succeed(None) @@ -626,8 +718,13 @@ class GeneralSFTPFile: d2.addCallback(lambda ign: self.consumer.get_current_size()) d2.addCallback(lambda size: self.consumer.read(0, size)) d2.addCallback(lambda new_contents: self.filenode.overwrite(new_contents)) + #elif (self.flags & FXF_EXCL) and self.consumer.get_current_size() == 0: + # # The file will already have been written by the open call, so we can + # # optimize out the extra directory write (useful for zero-length lockfiles). + # pass else: def _add_file(ign): + self.log("_add_file childname=%r" % (self.childname,), level=OPERATIONAL) u = FileHandle(self.consumer.get_file(), self.convergence) return self.parent.add_file(self.childname, u) d2.addCallback(_add_file) @@ -641,7 +738,7 @@ class GeneralSFTPFile: return d def getAttrs(self): - if debug: print "GETATTRS(file)" + self.log(".getAttrs()", level=OPERATIONAL) if self.closed: def _closed(): raise SFTPError(FX_BAD_MESSAGE, "cannot get attributes for a closed file handle") @@ -663,7 +760,8 @@ class GeneralSFTPFile: return d def setAttrs(self, attrs): - if debug: print "SETATTRS(file) %r" % (attrs,) + self.log(".setAttrs(attrs) %r" % (attrs,), level=OPERATIONAL) + if not (self.flags & FXF_WRITE): def _denied(): raise SFTPError(FX_PERMISSION_DENIED, "file handle was not opened for writing") return defer.execute(_denied) @@ -688,18 +786,6 @@ class GeneralSFTPFile: self.async.addCallbacks(_resize, eventually_errback(d)) return d -class SFTPUser(ConchUser): - def __init__(self, check_abort, client, rootnode, username, convergence): - ConchUser.__init__(self) - self.channelLookup["session"] = session.SSHSession - self.subsystemLookup["sftp"] = FileTransferServer - - self.check_abort = check_abort - self.client = client - self.root = rootnode - self.username = username - self.convergence = convergence - class StoppableList: def __init__(self, items): self.items = items @@ -709,74 +795,13 @@ class StoppableList: def close(self): pass -import array -import stat - -from time import time, strftime, localtime - -def lsLine(name, attrs): - st_uid = "tahoe" - st_gid = "tahoe" - st_mtime = attrs.get("mtime", 0) - st_mode = attrs["permissions"] - # TODO: check that clients are okay with this being a "?". - # (They should be because the longname is intended for human - # consumption.) - st_size = attrs.get("size", "?") - # We don't know how many links there really are to this object. - st_nlink = 1 - - # From . - # We can't call the version in Twisted because we might have a version earlier than - # (released in Twisted 8.2). - - mode = st_mode - perms = array.array('c', '-'*10) - ft = stat.S_IFMT(mode) - if stat.S_ISDIR(ft): perms[0] = 'd' - elif stat.S_ISCHR(ft): perms[0] = 'c' - elif stat.S_ISBLK(ft): perms[0] = 'b' - elif stat.S_ISREG(ft): perms[0] = '-' - elif stat.S_ISFIFO(ft): perms[0] = 'f' - elif stat.S_ISLNK(ft): perms[0] = 'l' - elif stat.S_ISSOCK(ft): perms[0] = 's' - else: perms[0] = '?' - # user - if mode&stat.S_IRUSR:perms[1] = 'r' - if mode&stat.S_IWUSR:perms[2] = 'w' - if mode&stat.S_IXUSR:perms[3] = 'x' - # group - if mode&stat.S_IRGRP:perms[4] = 'r' - if mode&stat.S_IWGRP:perms[5] = 'w' - if mode&stat.S_IXGRP:perms[6] = 'x' - # other - if mode&stat.S_IROTH:perms[7] = 'r' - if mode&stat.S_IWOTH:perms[8] = 'w' - if mode&stat.S_IXOTH:perms[9] = 'x' - # suid/sgid never set - - l = perms.tostring() - l += str(st_nlink).rjust(5) + ' ' - un = str(st_uid) - l += un.ljust(9) - gr = str(st_gid) - l += gr.ljust(9) - sz = str(st_size) - l += sz.rjust(8) - l += ' ' - sixmo = 60 * 60 * 24 * 7 * 26 - if st_mtime + sixmo < time(): # last edited more than 6mo ago - l += strftime("%b %d %Y ", localtime(st_mtime)) - else: - l += strftime("%b %d %H:%M ", localtime(st_mtime)) - l += name - return l - -class SFTPHandler: +class SFTPHandler(PrefixingLogMixin): implements(ISFTPServer) def __init__(self, user): - if debug: print "Creating SFTPHandler from", user + PrefixingLogMixin.__init__(self, facility="tahoe.sftp") + if noisy: self.log(".__init__(%r)" % (user,), level=NOISY) + self.check_abort = user.check_abort self.client = user.client self.root = user.root @@ -784,13 +809,13 @@ class SFTPHandler: self.convergence = user.convergence def gotVersion(self, otherVersion, extData): - if debug: print "GOTVERSION %r %r" % (otherVersion, extData) + self.log(".gotVersion(%r, %r)" % (otherVersion, extData), level=OPERATIONAL) return {} def openFile(self, pathstring, flags, attrs): - if debug: print "OPENFILE %r %r %r %r" % (pathstring, flags, _repr_flags(flags), attrs) - # this is used for both reading and writing. + self.log(".openFile(%r, %r = %r, %r)" % (pathstring, flags, _repr_flags(flags), attrs), level=OPERATIONAL) + # This is used for both reading and writing. # First exclude invalid combinations of flags. # /usr/bin/sftp 'get' gives us FXF_READ, while 'put' on a new file @@ -847,6 +872,7 @@ class SFTPHandler: "Upgrading the gateway to a later Tahoe-LAFS version may help") if not path: # case 1 + if noisy: self.log("case 1: root = %r, path[:-1] = %r" % (root, path[:-1]), level=NOISY) if not IFileNode.providedBy(root): raise SFTPError(FX_PERMISSION_DENIED, "cannot open a directory cap") @@ -861,10 +887,11 @@ class SFTPHandler: else: # case 2 childname = path[-1] - if debug: print "case 2: childname = %r, path[:-1] = %r" % (childname, path[:-1]) + if noisy: self.log("case 2: root = %r, childname = %r, path[:-1] = %r" % + (root, childname, path[:-1]), level=NOISY) d2 = root.get_child_at_path(path[:-1]) def _got_parent(parent): - if debug: print "_got_parent(%r)" % (parent,) + if noisy: self.log("_got_parent(%r)" % (parent,), level=NOISY) stash['parent'] = parent if flags & FXF_EXCL: @@ -881,7 +908,8 @@ class SFTPHandler: # 'overwrite=False' ensures failure if the link already exists. # FIXME: should use a single call to set_uri and return (child, metadata) (#1035) - d3 = parent.set_uri(childname, None, "URI:LIT:", overwrite=False) + zero_length_lit = "URI:LIT:" + d3 = parent.set_uri(childname, None, zero_length_lit, overwrite=False) def _seturi_done(child): stash['child'] = child return parent.get_metadata_for(childname) @@ -889,12 +917,12 @@ class SFTPHandler: d3.addCallback(lambda metadata: (stash['child'], metadata)) return d3 else: - if debug: print "get_child_and_metadata" + if noisy: self.log("get_child_and_metadata(%r)" % (childname,), level=NOISY) return parent.get_child_and_metadata(childname) d2.addCallback(_got_parent) def _got_child( (filenode, metadata) ): - if debug: print "_got_child((%r, %r))" % (filenode, metadata) + if noisy: self.log("_got_child( (%r, %r) )" % (filenode, metadata), level=NOISY) parent = stash['parent'] if filenode.is_unknown(): raise SFTPError(FX_PERMISSION_DENIED, @@ -913,7 +941,7 @@ class SFTPHandler: return _make_sftp_file(self.check_abort, flags, self.convergence, parent=parent, childname=childname, filenode=filenode, metadata=metadata) def _no_child(f): - if debug: print "_no_child(%r)" % (f,) + if noisy: self.log("_no_child(%r)" % (f,), level=NOISY) f.trap(NoSuchChildError) parent = stash['parent'] if parent is None: @@ -934,12 +962,14 @@ class SFTPHandler: return d def removeFile(self, pathstring): - if debug: print "REMOVEFILE %r" % (pathstring,) + self.log(".removeFile(%r)" % (pathstring,), level=OPERATIONAL) + path = self._path_from_string(pathstring) return self._remove_object(path, must_be_file=True) def renameFile(self, oldpathstring, newpathstring): - if debug: print "RENAMEFILE %r %r" % (oldpathstring, newpathstring) + self.log(".renameFile(%r, %r)" % (oldpathstring, newpathstring), level=OPERATIONAL) + fromPath = self._path_from_string(oldpathstring) toPath = self._path_from_string(newpathstring) @@ -947,6 +977,8 @@ class SFTPHandler: d = deferredutil.gatherResults([self._get_parent(fromPath), self._get_parent(toPath)]) def _got( (fromPair, toPair) ): + if noisy: self.log("_got( (%r, %r) ) in .renameFile(%r, %r)" % + (fromPair, toPair, oldpathstring, newpathstring), level=NOISY) (fromParent, fromChildname) = fromPair (toParent, toChildname) = toPair @@ -963,11 +995,12 @@ class SFTPHandler: return d def makeDirectory(self, pathstring, attrs): - if debug: print "MAKEDIRECTORY %r %r" % (pathstring, attrs) + self.log(".makeDirectory(%r, %r)" % (pathstring, attrs), level=OPERATIONAL) + path = self._path_from_string(pathstring) metadata = self._attrs_to_metadata(attrs) d = self._get_root(path) - d.addCallback(lambda (root,path): + d.addCallback(lambda (root, path): self._get_or_create_directories(root, path, metadata)) d.addErrback(_raise_error) return d @@ -991,7 +1024,8 @@ class SFTPHandler: return d def removeDirectory(self, pathstring): - if debug: print "REMOVEDIRECTORY %r" % (pathstring,) + self.log(".removeDirectory(%r)" % (pathstring,), level=OPERATIONAL) + path = self._path_from_string(pathstring) return self._remove_object(path, must_be_directory=True) @@ -1013,9 +1047,9 @@ class SFTPHandler: return d def openDirectory(self, pathstring): - if debug: print "OPENDIRECTORY %r" % (pathstring,) + self.log(".openDirectory(%r)" % (pathstring,), level=OPERATIONAL) + path = self._path_from_string(pathstring) - if debug: print " PATH %r" % (path,) d = self._get_node_and_metadata_for_path(path) def _list( (dirnode, metadata) ): if dirnode.is_unknown(): @@ -1035,7 +1069,7 @@ class SFTPHandler: not (node.is_mutable() and node.is_readonly())) attrs = _populate_attrs(node, metadata, writeable) filename_utf8 = filename.encode('utf-8') - longname = lsLine(filename_utf8, attrs) + longname = _lsLine(filename_utf8, attrs) results.append( (filename_utf8, longname, attrs) ) return StoppableList(results) d2.addCallback(_render) @@ -1045,7 +1079,8 @@ class SFTPHandler: return d def getAttrs(self, pathstring, followLinks): - if debug: print "GETATTRS %r %r" % (pathstring, followLinks) + self.log(".getAttrs(%r, followLinks=%r)" % (pathstring, followLinks), level=OPERATIONAL) + d = self._get_node_and_metadata_for_path(self._path_from_string(pathstring)) def _render( (node, metadata) ): # When asked about a specific file, report its current size. @@ -1061,14 +1096,11 @@ class SFTPHandler: return d2 d.addCallback(_render) d.addErrback(_raise_error) - def _done(res): - if debug: print " DONE %r" % (res,) - return res - d.addBoth(_done) return d def setAttrs(self, pathstring, attrs): - if debug: print "SETATTRS %r %r" % (pathstring, attrs) + self.log(".setAttrs(%r, %r)" % (pathstring, attrs), level=OPERATIONAL) + if "size" in attrs: # this would require us to download and re-upload the truncated/extended # file contents @@ -1076,26 +1108,31 @@ class SFTPHandler: return None def readLink(self, pathstring): - if debug: print "READLINK %r" % (pathstring,) + self.log(".readLink(%r)" % (pathstring,), level=OPERATIONAL) + raise SFTPError(FX_OP_UNSUPPORTED, "readLink") def makeLink(self, linkPathstring, targetPathstring): - if debug: print "MAKELINK %r %r" % (linkPathstring, targetPathstring) + self.log(".makeLink(%r, %r)" % (linkPathstring, targetPathstring), level=OPERATIONAL) + raise SFTPError(FX_OP_UNSUPPORTED, "makeLink") def extendedRequest(self, extendedName, extendedData): - if debug: print "EXTENDEDREQUEST %r %r" % (extendedName, extendedData) - # Client 'df' command requires 'statvfs@openssh.com' extension - # (but there's little point to implementing that since we would only - # have faked values to report). + self.log(".extendedRequest(%r, %r)" % (extendedName, extendedData), level=OPERATIONAL) + + # A client 'df' command requires the 'statvfs@openssh.com' extension, + # but there's little point to implementing that since we would only + # have faked values to report. raise SFTPError(FX_OP_UNSUPPORTED, "extendedRequest %r" % extendedName) def realPath(self, pathstring): - if debug: print "REALPATH %r" % (pathstring,) - return "/" + "/".join(self._path_from_string(pathstring)) + self.log(".realPath(%r)" % (pathstring,), level=OPERATIONAL) + + path_utf8 = [p.encode('utf-8') for p in self._path_from_string(pathstring)] + return "/" + "/".join(path_utf8) def _path_from_string(self, pathstring): - if debug: print "CONVERT %r" % (pathstring,) + if noisy: self.log("CONVERT %r" % (pathstring,), level=NOISY) # The home directory is the root directory. pathstring = pathstring.strip("/") @@ -1120,29 +1157,27 @@ class SFTPHandler: raise SFTPError(FX_NO_SUCH_FILE, "path could not be decoded as UTF-8") path.append(p) - if debug: print " PATH %r" % (path,) + if noisy: self.log(" PATH %r" % (path,), level=NOISY) return path def _get_node_and_metadata_for_path(self, path): d = self._get_root(path) def _got_root( (root, path) ): - if debug: print " ROOT %r" % (root,) - if debug: print " PATH %r" % (path,) + if noisy: self.log("_got_root( (%r, %r) )" % (root, path), level=NOISY) if path: return root.get_child_and_metadata_at_path(path) else: - return (root,{}) + return (root, {}) d.addCallback(_got_root) return d def _get_root(self, path): # return (root, remaining_path) if path and path[0] == u"uri": - d = defer.maybeDeferred(self.client.create_node_from_uri, - str(path[1])) + d = defer.maybeDeferred(self.client.create_node_from_uri, path[1].encode('utf-8')) d.addCallback(lambda root: (root, path[2:])) else: - d = defer.succeed((self.root,path)) + d = defer.succeed((self.root, path)) return d def _get_parent(self, path): @@ -1176,6 +1211,18 @@ class SFTPHandler: return metadata +class SFTPUser(ConchUser): + def __init__(self, check_abort, client, rootnode, username, convergence): + ConchUser.__init__(self) + self.channelLookup["session"] = session.SSHSession + self.subsystemLookup["sftp"] = FileTransferServer + + self.check_abort = check_abort + self.client = client + self.root = rootnode + self.username = username + self.convergence = convergence + # if you have an SFTPUser, and you want something that provides ISFTPServer, # then you get SFTPHandler(user) components.registerAdapter(SFTPHandler, SFTPUser, ISFTPServer) @@ -1234,4 +1281,3 @@ class SFTPServer(service.MultiService): s = strports.service(sftp_portstr, f) s.setServiceParent(self) - diff --git a/src/allmydata/test/test_sftp.py b/src/allmydata/test/test_sftp.py index fed65317..7e31fcce 100644 --- a/src/allmydata/test/test_sftp.py +++ b/src/allmydata/test/test_sftp.py @@ -24,24 +24,25 @@ if have_pycrypto: #from twisted.internet.base import DelayedCall #DelayedCall.debug = True -import sys, traceback - -""" -def trace_exceptions(frame, event, arg): - if event != 'exception': - return - co = frame.f_code - func_name = co.co_name - line_no = frame.f_lineno - filename = co.co_filename - exc_type, exc_value, exc_traceback = arg - print 'Tracing exception: %r %r on line %r of %r in %r' % \ - (exc_type.__name__, exc_value, line_no, func_name, filename) - -def trace_calls(frame, event, arg): - if event != 'call': - return - return trace_exceptions +import traceback + +""" +import sys +def trace_exceptions(frame, event, arg): + if event != 'exception': + return + co = frame.f_code + func_name = co.co_name + line_no = frame.f_lineno + filename = co.co_filename + exc_type, exc_value, exc_traceback = arg + print 'Tracing exception: %r %r on line %r of %r in %r' % \ + (exc_type.__name__, exc_value, line_no, func_name, filename) + +def trace_calls(frame, event, arg): + if event != 'call': + return + return trace_exceptions sys.settrace(trace_calls) """ @@ -70,9 +71,9 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): def _done(res): if isinstance(res, Failure): res.trap(sftp.SFTPError) - self.failUnlessEqual(res.value.code, expected_code, - "%s was supposed to raise SFTPError(%d), not SFTPError(%d): %s" % - (which, expected_code, res.value.code, res)) + self.failUnlessReallyEqual(res.value.code, expected_code, + "%s was supposed to raise SFTPError(%d), not SFTPError(%d): %s" % + (which, expected_code, res.value.code, res)) else: print '@' + '@'.join(s) self.fail("%s was supposed to raise SFTPError(%d), not get '%s'" % @@ -80,6 +81,10 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addBoth(_done) return d + def failUnlessReallyEqual(self, a, b, msg=None): + self.failUnlessEqual(a, b, msg=msg) + self.failUnlessEqual(type(a), type(b), msg=msg) + def _set_up(self, basedir, num_clients=1, num_servers=10): self.basedir = "sftp/" + basedir self.set_up_grid(num_clients=num_clients, num_servers=num_servers) @@ -175,43 +180,43 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): version = self.handler.gotVersion(3, {}) self.failUnless(isinstance(version, dict)) - self.failUnlessEqual(self.handler._path_from_string(""), []) - self.failUnlessEqual(self.handler._path_from_string("/"), []) - self.failUnlessEqual(self.handler._path_from_string("."), []) - self.failUnlessEqual(self.handler._path_from_string("//"), []) - self.failUnlessEqual(self.handler._path_from_string("/."), []) - self.failUnlessEqual(self.handler._path_from_string("/./"), []) - self.failUnlessEqual(self.handler._path_from_string("foo"), [u"foo"]) - self.failUnlessEqual(self.handler._path_from_string("/foo"), [u"foo"]) - self.failUnlessEqual(self.handler._path_from_string("foo/"), [u"foo"]) - self.failUnlessEqual(self.handler._path_from_string("/foo/"), [u"foo"]) - self.failUnlessEqual(self.handler._path_from_string("foo/bar"), [u"foo", u"bar"]) - self.failUnlessEqual(self.handler._path_from_string("/foo/bar"), [u"foo", u"bar"]) - self.failUnlessEqual(self.handler._path_from_string("foo/bar//"), [u"foo", u"bar"]) - self.failUnlessEqual(self.handler._path_from_string("/foo/bar//"), [u"foo", u"bar"]) - self.failUnlessEqual(self.handler._path_from_string("foo/../bar"), [u"bar"]) - self.failUnlessEqual(self.handler._path_from_string("/foo/../bar"), [u"bar"]) - self.failUnlessEqual(self.handler._path_from_string("../bar"), [u"bar"]) - self.failUnlessEqual(self.handler._path_from_string("/../bar"), [u"bar"]) - - self.failUnlessEqual(self.handler.realPath(""), "/") - self.failUnlessEqual(self.handler.realPath("/"), "/") - self.failUnlessEqual(self.handler.realPath("."), "/") - self.failUnlessEqual(self.handler.realPath("//"), "/") - self.failUnlessEqual(self.handler.realPath("/."), "/") - self.failUnlessEqual(self.handler.realPath("/./"), "/") - self.failUnlessEqual(self.handler.realPath("foo"), "/foo") - self.failUnlessEqual(self.handler.realPath("/foo"), "/foo") - self.failUnlessEqual(self.handler.realPath("foo/"), "/foo") - self.failUnlessEqual(self.handler.realPath("/foo/"), "/foo") - self.failUnlessEqual(self.handler.realPath("foo/bar"), "/foo/bar") - self.failUnlessEqual(self.handler.realPath("/foo/bar"), "/foo/bar") - self.failUnlessEqual(self.handler.realPath("foo/bar//"), "/foo/bar") - self.failUnlessEqual(self.handler.realPath("/foo/bar//"), "/foo/bar") - self.failUnlessEqual(self.handler.realPath("foo/../bar"), "/bar") - self.failUnlessEqual(self.handler.realPath("/foo/../bar"), "/bar") - self.failUnlessEqual(self.handler.realPath("../bar"), "/bar") - self.failUnlessEqual(self.handler.realPath("/../bar"), "/bar") + self.failUnlessReallyEqual(self.handler._path_from_string(""), []) + self.failUnlessReallyEqual(self.handler._path_from_string("/"), []) + self.failUnlessReallyEqual(self.handler._path_from_string("."), []) + self.failUnlessReallyEqual(self.handler._path_from_string("//"), []) + self.failUnlessReallyEqual(self.handler._path_from_string("/."), []) + self.failUnlessReallyEqual(self.handler._path_from_string("/./"), []) + self.failUnlessReallyEqual(self.handler._path_from_string("foo"), [u"foo"]) + self.failUnlessReallyEqual(self.handler._path_from_string("/foo"), [u"foo"]) + self.failUnlessReallyEqual(self.handler._path_from_string("foo/"), [u"foo"]) + self.failUnlessReallyEqual(self.handler._path_from_string("/foo/"), [u"foo"]) + self.failUnlessReallyEqual(self.handler._path_from_string("foo/bar"), [u"foo", u"bar"]) + self.failUnlessReallyEqual(self.handler._path_from_string("/foo/bar"), [u"foo", u"bar"]) + self.failUnlessReallyEqual(self.handler._path_from_string("foo/bar//"), [u"foo", u"bar"]) + self.failUnlessReallyEqual(self.handler._path_from_string("/foo/bar//"), [u"foo", u"bar"]) + self.failUnlessReallyEqual(self.handler._path_from_string("foo/../bar"), [u"bar"]) + self.failUnlessReallyEqual(self.handler._path_from_string("/foo/../bar"), [u"bar"]) + self.failUnlessReallyEqual(self.handler._path_from_string("../bar"), [u"bar"]) + self.failUnlessReallyEqual(self.handler._path_from_string("/../bar"), [u"bar"]) + + self.failUnlessReallyEqual(self.handler.realPath(""), "/") + self.failUnlessReallyEqual(self.handler.realPath("/"), "/") + self.failUnlessReallyEqual(self.handler.realPath("."), "/") + self.failUnlessReallyEqual(self.handler.realPath("//"), "/") + self.failUnlessReallyEqual(self.handler.realPath("/."), "/") + self.failUnlessReallyEqual(self.handler.realPath("/./"), "/") + self.failUnlessReallyEqual(self.handler.realPath("foo"), "/foo") + self.failUnlessReallyEqual(self.handler.realPath("/foo"), "/foo") + self.failUnlessReallyEqual(self.handler.realPath("foo/"), "/foo") + self.failUnlessReallyEqual(self.handler.realPath("/foo/"), "/foo") + self.failUnlessReallyEqual(self.handler.realPath("foo/bar"), "/foo/bar") + self.failUnlessReallyEqual(self.handler.realPath("/foo/bar"), "/foo/bar") + self.failUnlessReallyEqual(self.handler.realPath("foo/bar//"), "/foo/bar") + self.failUnlessReallyEqual(self.handler.realPath("/foo/bar//"), "/foo/bar") + self.failUnlessReallyEqual(self.handler.realPath("foo/../bar"), "/bar") + self.failUnlessReallyEqual(self.handler.realPath("/foo/../bar"), "/bar") + self.failUnlessReallyEqual(self.handler.realPath("../bar"), "/bar") + self.failUnlessReallyEqual(self.handler.realPath("/../bar"), "/bar") d.addCallback(_check) d.addCallback(lambda ign: @@ -224,7 +229,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): return d def test_raise_error(self): - self.failUnlessEqual(sftpd._raise_error(None), None) + self.failUnlessReallyEqual(sftpd._raise_error(None), None) d = defer.succeed(None) d.addCallback(lambda ign: @@ -273,20 +278,20 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): def _compareDirLists(self, actual, expected): actual_list = sorted(actual) expected_list = sorted(expected) - self.failUnlessEqual(len(actual_list), len(expected_list), + self.failUnlessReallyEqual(len(actual_list), len(expected_list), "%r is wrong length, expecting %r" % (actual_list, expected_list)) for (a, b) in zip(actual_list, expected_list): (name, text, attrs) = a (expected_name, expected_text_re, expected_attrs) = b - self.failUnlessEqual(name, expected_name) + self.failUnlessReallyEqual(name, expected_name) self.failUnless(re.match(expected_text_re, text), "%r does not match %r" % (text, expected_text_re)) # it is ok for there to be extra actual attributes # TODO: check times for e in expected_attrs: - self.failUnlessEqual(attrs[e], expected_attrs[e]) + self.failUnlessReallyEqual(attrs[e], expected_attrs[e]) def test_openDirectory_and_attrs(self): - d = self._set_up("openDirectory") + d = self._set_up("openDirectory_and_attrs") d.addCallback(lambda ign: self._set_up_tree()) d.addCallback(lambda ign: @@ -303,14 +308,14 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): self.handler.openDirectory, "nodir/nodir")) gross = u"gro\u00DF".encode("utf-8") - expected_root = [ - ('empty_lit_dir', r'drwxrwx--- .* \? .* empty_lit_dir$', {'permissions': S_IFDIR | 0770}), - (gross, r'-rw-rw---- .* 1010 .* '+gross+'$', {'permissions': S_IFREG | 0660, 'size': 1010}), - ('loop', r'drwxrwx--- .* \? .* loop$', {'permissions': S_IFDIR | 0770}), - ('mutable', r'-rw-rw---- .* \? .* mutable$', {'permissions': S_IFREG | 0660}), - ('readonly', r'-r--r----- .* \? .* readonly$', {'permissions': S_IFREG | 0440}), - ('small', r'-rw-rw---- .* 10 .* small$', {'permissions': S_IFREG | 0660, 'size': 10}), - ('small2', r'-rw-rw---- .* 26 .* small2$', {'permissions': S_IFREG | 0660, 'size': 26}), + expected_root = [ + ('empty_lit_dir', r'drwxrwx--- .* \? .* empty_lit_dir$', {'permissions': S_IFDIR | 0770}), + (gross, r'-rw-rw---- .* 1010 .* '+gross+'$', {'permissions': S_IFREG | 0660, 'size': 1010}), + ('loop', r'drwxrwx--- .* \? .* loop$', {'permissions': S_IFDIR | 0770}), + ('mutable', r'-rw-rw---- .* \? .* mutable$', {'permissions': S_IFREG | 0660}), + ('readonly', r'-r--r----- .* \? .* readonly$', {'permissions': S_IFREG | 0440}), + ('small', r'-rw-rw---- .* 10 .* small$', {'permissions': S_IFREG | 0660, 'size': 10}), + ('small2', r'-rw-rw---- .* 26 .* small2$', {'permissions': S_IFREG | 0660, 'size': 26}), ('tiny_lit_dir', r'drwxrwx--- .* \? .* tiny_lit_dir$', {'permissions': S_IFDIR | 0770}), ('unknown', r'\?--------- .* \? .* unknown$', {'permissions': 0}), ] @@ -336,12 +341,12 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(lambda ign: self.handler.getAttrs("small", True)) def _check_attrs(attrs): - self.failUnlessEqual(attrs['permissions'], S_IFREG | 0440) #FIXME - self.failUnlessEqual(attrs['size'], 10) + self.failUnlessReallyEqual(attrs['permissions'], S_IFREG | 0440) #FIXME + self.failUnlessReallyEqual(attrs['size'], 10) d.addCallback(_check_attrs) d.addCallback(lambda ign: - self.failUnlessEqual(self.handler.setAttrs("small", {}), None)) + self.failUnlessReallyEqual(self.handler.setAttrs("small", {}), None)) d.addCallback(lambda ign: self.shouldFailWithSFTPError(sftp.FX_OP_UNSUPPORTED, "setAttrs size", @@ -350,7 +355,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): return d def test_openFile_read(self): - d = self._set_up("openFile") + d = self._set_up("openFile_read") d.addCallback(lambda ign: self._set_up_tree()) d.addCallback(lambda ign: @@ -377,18 +382,25 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(lambda ign: self.shouldFailWithSFTPError(sftp.FX_PERMISSION_DENIED, "openFile tiny_lit_dir uri READ denied", self.handler.openFile, "uri/"+self.tiny_lit_dir_uri, sftp.FXF_READ, {})) + # FIXME: should be FX_NO_SUCH_FILE? + d.addCallback(lambda ign: + self.shouldFailWithSFTPError(sftp.FX_PERMISSION_DENIED, "openFile noexist uri READ denied", + self.handler.openFile, "uri/URI:noexist", sftp.FXF_READ, {})) + d.addCallback(lambda ign: + self.shouldFailWithSFTPError(sftp.FX_NO_SUCH_FILE, "openFile invalid UTF-8 uri READ denied", + self.handler.openFile, "uri/URI:\xFF", sftp.FXF_READ, {})) # reading an existing file should succeed d.addCallback(lambda ign: self.handler.openFile("small", sftp.FXF_READ, {})) def _read_small(rf): d2 = rf.readChunk(0, 10) - d2.addCallback(lambda data: self.failUnlessEqual(data, "0123456789")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "0123456789")) d2.addCallback(lambda ign: rf.readChunk(2, 6)) - d2.addCallback(lambda data: self.failUnlessEqual(data, "234567")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "234567")) d2.addCallback(lambda ign: rf.readChunk(8, 4)) # read that starts before EOF is OK - d2.addCallback(lambda data: self.failUnlessEqual(data, "89")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "89")) d2.addCallback(lambda ign: self.shouldFailWithSFTPError(sftp.FX_EOF, "readChunk starting at EOF (0-byte)", @@ -402,8 +414,8 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d2.addCallback(lambda ign: rf.getAttrs()) def _check_attrs(attrs): - self.failUnlessEqual(attrs['permissions'], S_IFREG | 0440) #FIXME - self.failUnlessEqual(attrs['size'], 10) + self.failUnlessReallyEqual(attrs['permissions'], S_IFREG | 0440) #FIXME + self.failUnlessReallyEqual(attrs['size'], 10) d2.addCallback(_check_attrs) d2.addCallback(lambda ign: @@ -431,13 +443,13 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(lambda ign: self.handler.openFile(gross, sftp.FXF_READ, {})) def _read_gross(rf): d2 = rf.readChunk(0, 10) - d2.addCallback(lambda data: self.failUnlessEqual(data, "0123456789")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "0123456789")) d2.addCallback(lambda ign: rf.readChunk(2, 6)) - d2.addCallback(lambda data: self.failUnlessEqual(data, "234567")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "234567")) d2.addCallback(lambda ign: rf.readChunk(1008, 4)) # read that starts before EOF is OK - d2.addCallback(lambda data: self.failUnlessEqual(data, "89")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "89")) d2.addCallback(lambda ign: self.shouldFailWithSFTPError(sftp.FX_EOF, "readChunk starting at EOF (0-byte)", @@ -451,8 +463,8 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d2.addCallback(lambda ign: rf.getAttrs()) def _check_attrs(attrs): - self.failUnlessEqual(attrs['permissions'], S_IFREG | 0440) #FIXME - self.failUnlessEqual(attrs['size'], 1010) + self.failUnlessReallyEqual(attrs['permissions'], S_IFREG | 0440) #FIXME + self.failUnlessReallyEqual(attrs['size'], 1010) d2.addCallback(_check_attrs) d2.addCallback(lambda ign: @@ -479,7 +491,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(lambda ign: self.handler.openFile("uri/"+self.small_uri, sftp.FXF_READ, {})) def _read_small_uri(rf): d2 = rf.readChunk(0, 10) - d2.addCallback(lambda data: self.failUnlessEqual(data, "0123456789")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "0123456789")) d2.addCallback(lambda ign: rf.close()) return d2 d.addCallback(_read_small_uri) @@ -488,7 +500,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(lambda ign: self.handler.openFile("uri/"+self.gross_uri, sftp.FXF_READ, {})) def _read_gross_uri(rf): d2 = rf.readChunk(0, 10) - d2.addCallback(lambda data: self.failUnlessEqual(data, "0123456789")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "0123456789")) d2.addCallback(lambda ign: rf.close()) return d2 d.addCallback(_read_gross_uri) @@ -497,20 +509,29 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(lambda ign: self.handler.openFile("uri/"+self.mutable_uri, sftp.FXF_READ, {})) def _read_mutable_uri(rf): d2 = rf.readChunk(0, 100) - d2.addCallback(lambda data: self.failUnlessEqual(data, "mutable file contents")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "mutable file contents")) d2.addCallback(lambda ign: rf.close()) return d2 d.addCallback(_read_mutable_uri) + # repeat for a file within a directory referenced by URI + d.addCallback(lambda ign: self.handler.openFile("uri/"+self.tiny_lit_dir_uri+"/short", sftp.FXF_READ, {})) + def _read_short(rf): + d2 = rf.readChunk(0, 100) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "The end.")) + d2.addCallback(lambda ign: rf.close()) + return d2 + d.addCallback(_read_short) + return d def test_openFile_write(self): - d = self._set_up("openFile") + d = self._set_up("openFile_write") d.addCallback(lambda ign: self._set_up_tree()) d.addCallback(lambda ign: self.shouldFailWithSFTPError(sftp.FX_NO_SUCH_FILE, "openFile '' WRITE|CREAT|TRUNC", - self.handler.openFile, "", sftp.FXF_WRITE | sftp.FXF_CREAT | sftp.FXF_TRUNC, {})) + self.handler.openFile, "", sftp.FXF_WRITE | sftp.FXF_CREAT | sftp.FXF_TRUNC, {})) d.addCallback(lambda ign: self.shouldFailWithSFTPError(sftp.FX_BAD_MESSAGE, "openFile newfile WRITE|TRUNC", self.handler.openFile, "newfile", sftp.FXF_WRITE | sftp.FXF_TRUNC, {})) @@ -560,15 +581,15 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): self.handler.openFile("newfile", sftp.FXF_WRITE | sftp.FXF_CREAT | sftp.FXF_TRUNC, {})) def _write(wf): d2 = wf.writeChunk(0, "0123456789") - d2.addCallback(lambda res: self.failUnlessEqual(res, None)) + d2.addCallback(lambda res: self.failUnlessReallyEqual(res, None)) d2.addCallback(lambda ign: wf.writeChunk(8, "0123")) d2.addCallback(lambda ign: wf.writeChunk(13, "abc")) d2.addCallback(lambda ign: wf.getAttrs()) def _check_attrs(attrs): - self.failUnlessEqual(attrs['permissions'], S_IFREG | 0440) #FIXME - self.failUnlessEqual(attrs['size'], 16) + self.failUnlessReallyEqual(attrs['permissions'], S_IFREG | 0440) #FIXME + self.failUnlessReallyEqual(attrs['size'], 16) d2.addCallback(_check_attrs) d2.addCallback(lambda ign: wf.setAttrs({})) @@ -579,7 +600,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d2.addCallback(lambda ign: wf.setAttrs({'size': 14})) d2.addCallback(lambda ign: wf.getAttrs()) - d2.addCallback(lambda attrs: self.failUnlessEqual(attrs['size'], 14)) + d2.addCallback(lambda attrs: self.failUnlessReallyEqual(attrs['size'], 14)) d2.addCallback(lambda ign: self.shouldFailWithSFTPError(sftp.FX_PERMISSION_DENIED, "readChunk on write-only handle denied", @@ -599,7 +620,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(_write) d.addCallback(lambda ign: self.root.get(u"newfile")) d.addCallback(lambda node: download_to_data(node)) - d.addCallback(lambda data: self.failUnlessEqual(data, "012345670123\x00a")) + d.addCallback(lambda data: self.failUnlessReallyEqual(data, "012345670123\x00a")) # test APPEND flag, and also replacing an existing file ("newfile") d.addCallback(lambda ign: @@ -613,7 +634,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(_write_append) d.addCallback(lambda ign: self.root.get(u"newfile")) d.addCallback(lambda node: download_to_data(node)) - d.addCallback(lambda data: self.failUnlessEqual(data, "01234567890123")) + d.addCallback(lambda data: self.failUnlessReallyEqual(data, "01234567890123")) # test EXCL flag d.addCallback(lambda ign: @@ -622,7 +643,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): def _write_excl(wf): d2 = self.root.get(u"excl") d2.addCallback(lambda node: download_to_data(node)) - d2.addCallback(lambda data: self.failUnlessEqual(data, "")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "")) d2.addCallback(lambda ign: wf.writeChunk(0, "0123456789")) d2.addCallback(lambda ign: wf.close()) @@ -630,7 +651,31 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(_write_excl) d.addCallback(lambda ign: self.root.get(u"excl")) d.addCallback(lambda node: download_to_data(node)) - d.addCallback(lambda data: self.failUnlessEqual(data, "0123456789")) + d.addCallback(lambda data: self.failUnlessReallyEqual(data, "0123456789")) + + """ + # test that writing a zero-length file with EXCL only updates the directory once + d.addCallback(lambda ign: + self.handler.openFile("zerolength", sftp.FXF_WRITE | sftp.FXF_CREAT | + sftp.FXF_EXCL, {})) + def _write_excl_zerolength(wf): + d2 = self.root.get(u"zerolength") + d2.addCallback(lambda node: download_to_data(node)) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "")) + + # FIXME: no API to get the best version number exists (fix as part of #993) + #stash = {} + #d2.addCallback(lambda ign: self.root.get_best_version_number()) + #d2.addCallback(lambda version: stash['version'] = version) + d2.addCallback(lambda ign: wf.close()) + #d2.addCallback(lambda ign: self.root.get_best_version_number()) + #d2.addCallback(lambda new_version: self.failUnlessReallyEqual(new_version, stash['version']) + return d2 + d.addCallback(_write_excl_zerolength) + d.addCallback(lambda ign: self.root.get(u"zerolength")) + d.addCallback(lambda node: download_to_data(node)) + d.addCallback(lambda data: self.failUnlessReallyEqual(data, "")) + """ # test WRITE | CREAT without TRUNC d.addCallback(lambda ign: @@ -642,7 +687,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(_write_notrunc) d.addCallback(lambda ign: self.root.get(u"newfile2")) d.addCallback(lambda node: download_to_data(node)) - d.addCallback(lambda data: self.failUnlessEqual(data, "0123456789")) + d.addCallback(lambda data: self.failUnlessReallyEqual(data, "0123456789")) # test writing to a mutable file d.addCallback(lambda ign: @@ -655,10 +700,10 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): d.addCallback(lambda ign: self.root.get(u"mutable")) def _check_same_file(node): self.failUnless(node.is_mutable()) - self.failUnlessEqual(node.get_uri(), self.mutable_uri) + self.failUnlessReallyEqual(node.get_uri(), self.mutable_uri) return node.download_best_version() d.addCallback(_check_same_file) - d.addCallback(lambda data: self.failUnlessEqual(data, "mutable new! contents")) + d.addCallback(lambda data: self.failUnlessReallyEqual(data, "mutable new! contents")) """ # test READ | WRITE without CREAT or TRUNC @@ -667,13 +712,13 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): def _read_write(rwf): d2 = rwf.writeChunk(8, "0123") d2.addCallback(lambda ign: rwf.readChunk(0, 100)) - d2.addCallback(lambda data: self.failUnlessEqual(data, "012345670123")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "012345670123")) d2.addCallback(lambda ign: rwf.close()) return d2 d.addCallback(_read_write) d.addCallback(lambda ign: self.root.get(u"small")) d.addCallback(lambda node: download_to_data(node)) - d.addCallback(lambda data: self.failUnlessEqual(data, "012345670123")) + d.addCallback(lambda data: self.failUnlessReallyEqual(data, "012345670123")) """ return d @@ -721,7 +766,7 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): self.shouldFail(NoSuchChildError, "removeFile small", "small", self.root.get, u"small")) d2.addCallback(lambda ign: rf.readChunk(0, 10)) - d2.addCallback(lambda data: self.failUnlessEqual(data, "0123456789")) + d2.addCallback(lambda data: self.failUnlessReallyEqual(data, "0123456789")) d2.addCallback(lambda ign: rf.close()) return d2 d.addCallback(_remove_and_read_small) @@ -807,23 +852,23 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): # renaming a file to a correct path should succeed d.addCallback(lambda ign: self.handler.renameFile("small", "new_small")) d.addCallback(lambda ign: self.root.get(u"new_small")) - d.addCallback(lambda node: self.failUnlessEqual(node.get_uri(), self.small_uri)) + d.addCallback(lambda node: self.failUnlessReallyEqual(node.get_uri(), self.small_uri)) # renaming a file into a subdirectory should succeed (also tests Unicode names) d.addCallback(lambda ign: self.handler.renameFile(u"gro\u00DF".encode('utf-8'), u"loop/neue_gro\u00DF".encode('utf-8'))) d.addCallback(lambda ign: self.root.get(u"neue_gro\u00DF")) - d.addCallback(lambda node: self.failUnlessEqual(node.get_uri(), self.gross_uri)) + d.addCallback(lambda node: self.failUnlessReallyEqual(node.get_uri(), self.gross_uri)) # renaming a directory to a correct path should succeed d.addCallback(lambda ign: self.handler.renameFile("tiny_lit_dir", "new_tiny_lit_dir")) d.addCallback(lambda ign: self.root.get(u"new_tiny_lit_dir")) - d.addCallback(lambda node: self.failUnlessEqual(node.get_uri(), self.tiny_lit_dir_uri)) + d.addCallback(lambda node: self.failUnlessReallyEqual(node.get_uri(), self.tiny_lit_dir_uri)) # renaming an unknown to a correct path should succeed d.addCallback(lambda ign: self.handler.renameFile("unknown", "new_unknown")) d.addCallback(lambda ign: self.root.get(u"new_unknown")) - d.addCallback(lambda node: self.failUnlessEqual(node.get_uri(), self.unknown_uri)) + d.addCallback(lambda node: self.failUnlessReallyEqual(node.get_uri(), self.unknown_uri)) return d @@ -840,9 +885,9 @@ class Handler(GridTestMixin, ShouldFailMixin, unittest.TestCase): self.failUnless(child.is_mutable()) # FIXME #self.failUnless('ctime' in metadata, metadata) - #self.failUnlessEqual(metadata['ctime'], 42) + #self.failUnlessReallyEqual(metadata['ctime'], 42) #self.failUnless('ext_foo' in metadata, metadata) - #self.failUnlessEqual(metadata['ext_foo'], 'bar') + #self.failUnlessReallyEqual(metadata['ext_foo'], 'bar') # TODO: child should be empty d.addCallback(_got)