def get_info():
from xpra.platform.printing import get_mimetypes, DEFAULT_MIMETYPES
return {
"mimetypes": {
"": get_mimetypes(),
"default": DEFAULT_MIMETYPES,
"printers": MIMETYPE_TO_PRINTER,
"ppd": MIMETYPE_TO_PPD
},
"mimetype": {
"default": DEFAULT_MIMETYPE
},
"simulate-failure": SIMULATE_PRINT_FAILURE,
"raw-mode": RAW_MODE,
"generic": GENERIC,
"tmpdir": FORWARDER_TMPDIR,
"lpadmin": LPADMIN,
"lpinfo": LPINFO,
"forwarder": FORWARDER_BACKEND,
"skipped-printers": SKIPPED_PRINTERS,
"add-local-printers": ADD_LOCAL_PRINTERS,
"printer-prefix": PRINTER_PREFIX,
"cups-dbus": {
"": CUPS_DBUS,
"default": DEFAULT_CUPS_DBUS,
"poll-delay": POLLING_DELAY
},
"cups.default-options": DEFAULT_CUPS_OPTIONS,
"printers": {
"": get_printer_definitions(),
"predefined": UNPROBED_PRINTER_DEFS
},
}
def get_info():
from xpra.platform.printing import get_mimetypes, DEFAULT_MIMETYPES
return {
"mimetypes": {
"": get_mimetypes(),
"default": DEFAULT_MIMETYPES,
"printers": MIMETYPE_TO_PRINTER,
"ppd": MIMETYPE_TO_PPD,
},
"mimetype": {"default": DEFAULT_MIMETYPE},
"simulate-failure": SIMULATE_PRINT_FAILURE,
"allow-user": ALLOW,
"raw-mode": RAW_MODE,
"generic": GENERIC,
"tmpdir": FORWARDER_TMPDIR,
"lpadmin": LPADMIN,
"lpinfo": LPINFO,
"forwarder": FORWARDER_BACKEND,
"skipped-printers": SKIPPED_PRINTERS,
"add-local-printers": ADD_LOCAL_PRINTERS,
"printer-prefix": PRINTER_PREFIX,
"cups-dbus": {"": CUPS_DBUS, "default": DEFAULT_CUPS_DBUS, "poll-delay": POLLING_DELAY},
"cups.default-options": DEFAULT_CUPS_OPTIONS,
"printers": {"": get_printer_definitions(), "predefined": UNPROBED_PRINTER_DEFS},
}
def do_send_printers(self):
try:
self.send_printers_pending = False
from xpra.platform.printing import get_printers, get_mimetypes
printers = get_printers()
printlog("do_send_printers() found printers=%s", printers)
#remove xpra-forwarded printers to avoid loops and multi-forwards,
#also ignore stopped printers
#and only keep the attributes that the server cares about (self.printer_attributes)
exported_printers = {}
def used_attrs(d):
#filter attributes so that we only compare things that are actually used
if not d:
return d
return dict((k,v) for k,v in d.items() if k in self.printer_attributes)
for k,v in printers.items():
device_uri = v.get("device-uri", "")
if device_uri:
#this is cups specific.. oh well
printlog("do_send_printers() device-uri(%s)=%s", k, device_uri)
if device_uri.startswith("xpraforwarder"):
printlog("do_send_printers() skipping xpra forwarded printer=%s", k)
continue
state = v.get("printer-state")
#"3" if the destination is idle,
#"4" if the destination is printing a job,
#"5" if the destination is stopped.
if state==5:
printlog("do_send_printers() skipping stopped printer=%s", k)
continue
attrs = used_attrs(v)
#add mimetypes:
attrs["mimetypes"] = get_mimetypes()
exported_printers[k.encode("utf8")] = attrs
if self.exported_printers is None:
#not been sent yet, ensure we can use the dict below:
self.exported_printers = {}
elif exported_printers==self.exported_printers:
printlog("do_send_printers() exported printers unchanged: %s", self.exported_printers)
return
#show summary of what has changed:
added = [k for k in exported_printers.keys() if k not in self.exported_printers]
if added:
printlog("do_send_printers() new printers: %s", added)
removed = [k for k in self.exported_printers.keys() if k not in exported_printers]
if removed:
printlog("do_send_printers() printers removed: %s", removed)
modified = [k for k,v in exported_printers.items() if self.exported_printers.get(k)!=v and k not in added]
if modified:
printlog("do_send_printers() printers modified: %s", modified)
printlog("do_send_printers() printers=%s", exported_printers.keys())
printlog("do_send_printers() exported printers=%s", ", ".join(str(x) for x in exported_printers.keys()))
self.exported_printers = exported_printers
self.send("printers", self.exported_printers)
except:
log.error("do_send_printers()", exc_info=True)
def do_send_printers(self):
try:
self.send_printers_timer = None
from xpra.platform.printing import get_printers, get_mimetypes
printers = get_printers()
printlog("do_send_printers() found printers=%s", printers)
#remove xpra-forwarded printers to avoid loops and multi-forwards,
#also ignore stopped printers
#and only keep the attributes that the server cares about (self.printer_attributes)
exported_printers = {}
def used_attrs(d):
#filter attributes so that we only compare things that are actually used
if not d:
return d
return dict((k,v) for k,v in d.items() if k in self.printer_attributes)
for k,v in printers.items():
device_uri = v.get("device-uri", "")
if device_uri:
#this is cups specific.. oh well
printlog("do_send_printers() device-uri(%s)=%s", k, device_uri)
if device_uri.startswith("xpraforwarder"):
printlog("do_send_printers() skipping xpra forwarded printer=%s", k)
continue
state = v.get("printer-state")
#"3" if the destination is idle,
#"4" if the destination is printing a job,
#"5" if the destination is stopped.
if state==5 and SKIP_STOPPED_PRINTERS:
printlog("do_send_printers() skipping stopped printer=%s", k)
continue
attrs = used_attrs(v)
#add mimetypes:
attrs["mimetypes"] = get_mimetypes()
exported_printers[k.encode("utf8")] = attrs
if self.exported_printers is None:
#not been sent yet, ensure we can use the dict below:
self.exported_printers = {}
elif exported_printers==self.exported_printers:
printlog("do_send_printers() exported printers unchanged: %s", self.exported_printers)
return
#show summary of what has changed:
added = [k for k in exported_printers.keys() if k not in self.exported_printers]
if added:
printlog("do_send_printers() new printers: %s", added)
removed = [k for k in self.exported_printers.keys() if k not in exported_printers]
if removed:
printlog("do_send_printers() printers removed: %s", removed)
modified = [k for k,v in exported_printers.items() if self.exported_printers.get(k)!=v and k not in added]
if modified:
printlog("do_send_printers() printers modified: %s", modified)
printlog("do_send_printers() printers=%s", exported_printers.keys())
printlog("do_send_printers() exported printers=%s", ", ".join(str(x) for x in exported_printers.keys()))
self.exported_printers = exported_printers
self.send("printers", self.exported_printers)
except:
printlog.error("do_send_printers()", exc_info=True)
def get_printer_definitions():
global PRINTER_DEF, PRINTER_DEF_LOCK, UNPROBED_PRINTER_DEFS, MIMETYPE_TO_PRINTER
with PRINTER_DEF_LOCK:
if PRINTER_DEF is not None:
return PRINTER_DEF
log("get_printer_definitions() UNPROBED_PRINTER_DEFS=%s, GENERIC=%s",
UNPROBED_PRINTER_DEFS, GENERIC)
from xpra.platform.printing import get_mimetypes
mimetypes = get_mimetypes()
#first add the user-supplied definitions:
PRINTER_DEF = UNPROBED_PRINTER_DEFS.copy()
#raw mode if supported:
if RAW_MODE:
PRINTER_DEF["raw"] = ["-o", "raw"]
#now probe for generic printers via lpinfo:
if GENERIC:
for mt in mimetypes:
if mt in PRINTER_DEF:
continue #we have a pre-defined one already
x = MIMETYPE_TO_PRINTER.get(mt)
if not x:
log.warn(
"Warning: unknown mimetype '%s', cannot find printer definition",
mt)
continue
drv = get_lpinfo_drv(x)
if drv:
#ie: ["-m", "drv:///sample.drv/generic.ppd"]
PRINTER_DEF[mt] = ["-m", drv]
#fallback to locating ppd files:
for mt in mimetypes:
if mt in PRINTER_DEF:
continue #we have a generic or pre-defined one already
x = MIMETYPE_TO_PPD.get(mt)
if not x:
log.warn(
"Warning: unknown mimetype '%s', cannot find corresponding PPD file",
mt)
continue
f = find_ppd_file(mt.replace("application/", "").upper(), x)
if f:
#ie: ["-P", "/usr/share/cups/model/Generic-PDF_Printer-PDF.ppd"]
PRINTER_DEF[mt] = ["-P", f]
log("pycups settings: PRINTER_DEF=%s", PRINTER_DEF)
return PRINTER_DEF
def get_printer_definitions():
global PRINTER_DEF, PRINTER_DEF_LOCK, UNPROBED_PRINTER_DEFS, MIMETYPE_TO_PRINTER
with PRINTER_DEF_LOCK:
if PRINTER_DEF is not None:
return PRINTER_DEF
log("get_printer_definitions() UNPROBED_PRINTER_DEFS=%s, GENERIC=%s", UNPROBED_PRINTER_DEFS, GENERIC)
from xpra.platform.printing import get_mimetypes
mimetypes = get_mimetypes()
# first add the user-supplied definitions:
PRINTER_DEF = UNPROBED_PRINTER_DEFS.copy()
# raw mode if supported:
if RAW_MODE:
PRINTER_DEF["raw"] = ["-o", "raw"]
# now probe for generic printers via lpinfo:
if GENERIC:
for mt in mimetypes:
if mt in PRINTER_DEF:
continue # we have a pre-defined one already
x = MIMETYPE_TO_PRINTER.get(mt)
if not x:
log.warn("Warning: unknown mimetype '%s', cannot find printer definition", mt)
continue
drv = get_lpinfo_drv(x)
if drv:
# ie: ["-m", "drv:///sample.drv/generic.ppd"]
PRINTER_DEF[mt] = ["-m", drv]
# fallback to locating ppd files:
for mt in mimetypes:
if mt in PRINTER_DEF:
continue # we have a generic or pre-defined one already
x = MIMETYPE_TO_PPD.get(mt)
if not x:
log.warn("Warning: unknown mimetype '%s', cannot find corresponding PPD file", mt)
continue
f = find_ppd_file(mt.replace("application/", "").upper(), x)
if f:
# ie: ["-P", "/usr/share/cups/model/Generic-PDF_Printer-PDF.ppd"]
PRINTER_DEF[mt] = ["-P", f]
log("pycups settings: PRINTER_DEF=%s", PRINTER_DEF)
return PRINTER_DEF
