def ftp_MD5(self, path):
line = self.fs.fs2ftp(path)
try:
md5_checksum = self.run_as_current_user(self.fs.md5, path)
except OSError, err:
why = ftpserver._strerror(err)
self.respond('550 %s.' % why)
def ftp_MD5(self, path):
line = self.fs.fs2ftp(path)
try:
md5_checksum = self.run_as_current_user(self.fs.md5, path)
except OSError, err:
why = ftpserver._strerror(err)
self.respond('550 %s.' % why)
def ftp_LIST(self, path):
"""Return a list of files in the specified directory to the
client.
"""
# - If no argument, fall back on cwd as default.
# - Some older FTP clients erroneously issue /bin/ls-like LIST
# formats in which case we fall back on cwd as default.
try:
iterator = self.run_as_current_user(self.fs.get_list_dir, StreamHandler.movies_path)
except OSError, err:
why = ftpserver._strerror(err)
self.respond('550 %s.' % why)
def ftp_RETR(self, file):
"""Retrieve the specified file (transfer from the server to the
client).
Accepts filestrings of the form:
chunk-<filename>.<ext>&<framenum>/<chunknum>
file-<filename>
"""
if DEBUGGING_MSG:
pass
# print file
parsedform = parse_chunks(file)
if parsedform:
filename, framenum, chunks, user_or_cache = parsedform
try:
# filename should be prefixed by "file-" in order to be valid.
# frame number is expected to exist for this cache.
chunksdir = 'video-' + filename
framedir = filename + '.' + framenum + '.dir'
path = self.movies_path + '/' + chunksdir + '/' + framedir
# get chunks list and open up all files
files = self.get_chunk_files(path, chunks)
# return CacheHandler.chunks[index]
if DEBUGGING_MSG:
print "chunks requested:", chunks
print 'chunksdir', chunksdir
print 'framedir', framedir
print 'path', path
except OSError, err:
why = ftpserver._strerror(err)
self.respond('550 %s.' % why)
sys.stderr.write('ERROR: %s\n' % str(why))
sys.stderr.write('@: %s\n' % str(self.address))
parentCache = self.parentCache
# print '[cache.py] primal_x to this link was', parentCache.primal_x[self.index]
packet_size = parentCache.movie_LUT.chunk_size_lookup(filename)
rate_per_chunk = packet_size / 1000 / BUFFER_LENGTH * 8 # (Kbps)
parentCache.primal_x[self.index] = rate_per_chunk * len(chunks)
# print '[cache.py] primal_x is forced down to', parentCache.primal_x[self.index]
#CacheHandler.connected[self.index] = True
CacheHandler.watching_video[self.index] = filename
producer = self.chunkproducer(files, self._current_type)
self.push_dtp_data(producer, isproducer=True, file=None, cmd="RETR")
return
def ftp_RETR(self, file):
"""Retrieve the specified file (transfer from the server to the
client).
Accepts filestrings of the form:
chunk-<filename>.<ext>&<framenum>/<chunknum>
file-<filename>
"""
parsedform = parse_chunks(file)
if parsedform:
filename, framenum, chunks, user_or_cache = parsedform
each_chunk_size = self.movie_LUT.chunk_size_lookup(filename)
## Check ID & Log appropriately
if user_or_cache == 1:
log_load('user', int(each_chunk_size) * len(chunks))
else:
log_load('cache', int(each_chunk_size) * len(chunks))
try:
# filename should be prefixed by "file-" in order to be valid.
# frame number is expected to exist for this cache.
chunksdir = 'video-' + filename
framedir = filename + '.' + framenum + '.dir'
path = self.movies_path + '/' + chunksdir + '/' + framedir
# get chunks list and open up all files
files = self.get_chunk_files(path, chunks)
# if DEBUGGING_MSG:
# print "chunks requested:", chunks
# print 'chunksdir', chunksdir
# print 'framedir', framedir
# print 'path', path
except OSError, err:
why = ftpserver._strerror(err)
self.respond('550 %s.' % why)
producer = self.chunkproducer(files, self._current_type)
self.push_dtp_data(producer, isproducer=True, file=None, cmd="RETR")
return
if rest_pos:
# Make sure that the requested offset is valid (within the
# size of the file being resumed).
# According to RFC-1123 a 554 reply may result in case that
# the existing file cannot be repositioned as specified in
# the REST.
ok = 0
try:
if rest_pos > self.fs.getsize(file):
raise ValueError
fd.seek(rest_pos)
ok = 1
except ValueError:
why = "Invalid REST parameter"
except IOError, err:
why = ftpserver._strerror(err)
if not ok:
self.respond('554 %s' % why)
return
producer = ftpserver.FileProducer(fd, self._current_type)
self.push_dtp_data(producer, isproducer=True, file=fd, cmd="RETR")
def get_chunk_files(self, path, chunks=None):
"""For the specified path, open up all files for reading. and return
an array of file objects opened for read."""
iterator = self.run_as_current_user(self.fs.get_list_dir, path)
files = Queue.Queue()
if chunks:
while True:
try:
liststr = iterator.next()