def setAsDefault(self):
"""
Set this printer as the system default.
"""
self.connection.setDefault(self.name)
# Also need to check system-wide lpoptions because that's how
# previous Fedora versions set the default (bug #217395).
with tempfile.TemporaryFile() as f:
try:
resource = "/admin/conf/lpoptions"
self.connection.getFile(resource, fd=f.fileno())
except cups.HTTPError as e:
(s, ) = e.args
if s in [
cups.HTTP_NOT_FOUND, cups.HTTP_AUTHORIZATION_CANCELED
]:
return False
raise cups.HTTPError(s)
f.seek(0)
lines = [line.decode('UTF-8') for line in f.readlines()]
changed = False
i = 0
for line in lines:
if line.startswith("Default "):
# This is the system-wide default.
name = line.split(' ')[1]
if name != self.name:
# Stop it from over-riding the server default.
lines[i] = "Dest " + line[8:]
changed = True
i += 1
if changed:
f.seek(0)
f.writelines([line.encode('UTF-8') for line in lines])
f.truncate()
f.flush()
f.seek(0)
try:
self.connection.putFile(resource, fd=f.fileno())
except cups.HTTPError:
return False
return changed
def setAsDefault(self):
"""
Set this printer as the system default.
"""
self.connection.setDefault(self.name)
# Also need to check system-wide lpoptions because that's how
# previous Fedora versions set the default (bug #217395).
(tmpfd, tmpfname) = tempfile.mkstemp()
os.remove(tmpfname)
try:
resource = "/admin/conf/lpoptions"
self.connection.getFile(resource, fd=tmpfd)
except cups.HTTPError as e:
(s, ) = e.args
if s == cups.HTTP_NOT_FOUND:
return False
raise cups.HTTPError(s)
f = os.fdopen(tmpfd, 'r+b')
f.seek(0)
lines = [line.decode('UTF-8') for line in f.readlines()]
changed = False
i = 0
for line in lines:
if line.startswith("Default "):
# This is the system-wide default.
name = line.split(' ')[1]
if name != self.name:
# Stop it from over-riding the server default.
lines[i] = "Dest " + line[8:]
changed = True
i += 1
if changed:
f.seek(0)
f.writelines([line.encode('UTF-8') for line in lines])
f.truncate()
os.lseek(tmpfd, 0, os.SEEK_SET)
try:
self.connection.putFile(resource, fd=tmpfd)
except cups.HTTPError:
return False
return changed
def setAsDefault(self):
"""
Set this printer as the system default.
"""
self.connection.setDefault(self.name)
# Also need to check system-wide lpoptions because that's how
# previous Fedora versions set the default (bug #217395).
(tmpfd, tmpfname) = tempfile.mkstemp()
os.remove(tmpfname)
try:
resource = "/admin/conf/lpoptions"
self.connection.getFile(resource, fd=tmpfd)
except cups.HTTPError, (s, ):
if s == cups.HTTP_NOT_FOUND:
return False
raise cups.HTTPError(s)
def _got_ppd3(self, connection, name, result, callback):
(status, modtime, filename) = result
if status in [cups.HTTP_OK, cups.HTTP_NOT_MODIFIED]:
if status == cups.HTTP_NOT_MODIFIED:
# The file is no newer than the one we already have.
# CUPS before 1.5.3 created a temporary file in error
# in this situation (STR #4018) so remove that.
try:
os.unlink(filename)
except OSError:
pass
elif status == cups.HTTP_OK:
# Our version of the file was older. Cache the new version.
# Store an open file object, then remove the actual
# file. This way we don't leave temporary files
# around.
try:
self._cache[name] = file(filename)
debugprint("%s: caching %s (fd %d) "
"(%s) - %s" %
(self, filename, self._cache[name].fileno(),
modtime, status))
os.unlink(filename)
self._modtimes[name] = modtime
except IOError as exc:
# File disappeared?
debugprint("%s: file %s disappeared? Unable to cache it" %
(self, filename))
self._schedule_callback(callback, name, None, exc)
return
# Now fetch it from our own cache.
self.fetch_ppd(name, callback, check_uptodate=False)
else:
self._schedule_callback(callback, name, None,
cups.HTTPError(status))
