def process(self, data):
mailpath, filename = self.get_paths(data)
## First check integrity
error = None
if not access(mailpath, F_OK | R_OK | W_OK):
error = 'No access to mailpath'
try:
makedirs(mailpath, 0700)
error = None
except:
t, val, tb = exc_info()
del tb
error = '%s: %s' % (t, val)
self.LOG(E_ERR, 'Filesystem Backend: Cannot create storage directory: ' + str(val))
if error is not None:
return 0, 443, error
if self.compression is not None:
name = '%d-%d.eml' % (data['year'], data['pid'])
comp = CompressedFile(compressor=self.compression[0], ratio=self.compression[1], name=name)
comp.write(data['mail'])
data['mail'] = comp.getdata()
comp.close()
try:
fd = open(filename, 'wb')
fd.write(data['mail'])
fd.flush()
fd.close()
self.LOG(E_TRACE, 'Filesystem Backend: wrote ' + filename)
return BACKEND_OK
except:
t, val, tb = exc_info()
del tb
self.LOG(E_ERR, 'Filesystem Backend: Cannot write mail file: ' + str(val))
return 0, 443, '%s: %s' % (t, val)
def process(self, data):
mailpath, filename = self.get_paths(data)
try:
stat(self.image)
except:
self.LOG(E_ALWAYS, self._prefix + 'Image not present, creating it')
if not self.create():
self.LOG(E_ERR, self._prefix + 'Cannot create Image file')
return 0, 443, 'Internal Error (Image creation failed)'
if not self.initImage():
self.LOG(E_ERR, self._prefix + 'Cannot init Image')
return 0, 443, 'Internal Error (Cannot init Image)'
error = None
if not access(mailpath, F_OK | R_OK | W_OK):
error = 'No access to mailpath'
try:
makedirs(mailpath, 0700)
error = None
except:
t, val, tb = exc_info()
del tb
error = '%s: %s' % (t, val)
self.LOG(E_ERR, self._prefix + 'Cannot create storage directory: %s' % str(val))
if error is not None:
return 0, 443, error
if self.compression is not None:
name = '%d-%d.eml' % (data['year'], data['pid'])
comp = CompressedFile(compressor=self.compression[0], ratio=self.compression[1], name=name)
comp.write(data['mail'])
data['mail'] = comp.getdata()
comp.close()
error_no = 0
try:
fd = open(filename, 'wb')
fd.write(data['mail'])
except:
t, val, tb = exc_info()
error_no = val.errno
try: fd.close()
except: pass
## An error occurred unlink file and check if the volume is full
if error_no:
try: unlink(filename)
except: pass
if error_no == ENOSPC:
if not self.recycle():
self.LOG(E_ERR, self._prefix + 'Error recycling Image')
return 0, 443, 'Internal Error (Recycling failed)'
self.LOG(E_ALWAYS, self._prefix + 'Recycled Image File, write postponed')
return 0, 443, 'Recycling volume'
else:
self.LOG(E_ERR, self._prefix + 'Cannot write mail file: %s' % str(val))
return 0, 443, '%s: %s' % (t, val)
self.LOG(E_TRACE, self._prefix + 'wrote %s' % filename)
res, data, msg = self.do_query(update_query % data, fetch=False, autorecon=True)
if not res:
try: unlink(filename)
except: pass
self.LOG(E_ERR, self._prefix + 'Error updating mail entry [%s], removing file from Image' % msg)
return 0, 443, 'Internal Error while updating mail entry'
return BACKEND_OK
