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import cups
def do_indent (indent):
return " "*indent
def getippqueue (dev, queue, depth):
name = dev.rfind ('/')
name = dev[name + 1:]
dev = dev[6:]
e = dev.find (':')
if e == -1:
e = dev.find ('/')
host = dev[:e]
cups.setServer (host)
try:
c = cups.Connection ()
printers = c.getPrinters ()
classes = c.getClasses ()
except RuntimeError:
# Failed to connect.
return
except cups.IPPError as e:
if e == cups.IPP_OPERATION_NOT_SUPPORTED:
# CUPS-Get-Printers not supported so not a CUPS server.
printers = {}
classes = {}
else:
return
queue = c.getPrinterAttributes (name)
dev = queue['device-uri']
getqueue (name, queue, host, depth + 1, printers, classes)
def getqueue (name, queue, host, depth, printers, classes):
indent = do_indent(depth)
if queue['printer-type'] & cups.CUPS_PRINTER_CLASS:
print ("%s* Name:\t%s[@%s] (class)" % (indent, name, host))
dev = queue['device-uri']
if dev.startswith ('ipp:'):
getippqueue (dev, queue, depth)
else:
members = classes[name]
depth += 1
indent = do_indent(depth)
for member in members:
getqueue (member, printers[member], host,
depth, printers, classes)
else:
print ("%s* Name:\t%s[@%s]" % (indent, name, host))
dev = queue['device-uri']
info = queue['printer-info']
print ("%sURI:\t%s" % (indent, dev))
print ("%sInfo:\t%s" % (indent, info))
if dev.startswith ('ipp:'):
getippqueue (dev, name, depth)
if depth == 0:
print ("")
def gethost (host=None, depth=0):
if host:
cups.setServer (host)
else:
host = "localhost"
c = cups.Connection ()
printers = c.getPrinters ()
classes = c.getClasses ()
indent = do_indent(depth)
for name, queue in printers.items ():
getqueue (name, queue, host, depth, printers, classes)
gethost()
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