def stringToNodes(s,
hou_parent=None,
ne=None,
ignore_hdas_if_already_defined=None,
force_prefer_hdas=None,
override_network_position=None,
key=None):
"""
TODO: here to be a docstring
:param s:
:param hou_parent:
:param ne:
:param ignore_hdas_if_already_defined:
:param force_prefer_hdas:
:override_network_position: hou.Vector2 - position in networkview pane
:return:
"""
if ignore_hdas_if_already_defined is None:
ignore_hdas_if_already_defined = True
if opt is not None:
ignore_hdas_if_already_defined = opt.getOption(
'hpaste.ignore_hdas_if_already_defined',
ignore_hdas_if_already_defined)
if force_prefer_hdas is None:
force_prefer_hdas = False
if opt is not None:
force_prefer_hdas = opt.getOption('hpaste.force_prefer_hdas',
force_prefer_hdas)
s = str(s) # ununicode. there should not be any unicode in it anyways
try:
data = json.loads(bz2.decompress(base64.urlsafe_b64decode(s)))
except Exception as e:
raise RuntimeError(
"input data is either corrupted or just not a nodecode: " +
str(e.message))
houver1 = hou.applicationVersion()
paste_to_position = ne is not None or override_network_position is not None
if hou_parent is None:
if ne is None:
nes = [
x for x in hou.ui.paneTabs()
if x.type() == hou.paneTabType.NetworkEditor
and getChildContext(x.pwd(), houver1) == data['context']
]
if len(nes) == 0:
nes = [
x for x in hou.ui.paneTabs()
if x.type() == hou.paneTabType.NetworkEditor
]
if len(nes) == 0:
raise RuntimeError(
"this snippet has '{0}' context. cannot find opened network editor with context '{0}' to paste in"
.format(data['context']))
ne = nes[0]
hou_parent = ne.pwd()
# check version
formatVersion = data['version']
if formatVersion > current_format_version[0]:
raise RuntimeError(
"unsupported version of data format. Try updating hpaste to the latest version"
)
if data.get('version.minor', 0) > current_format_version[1]:
print(
'HPaste: Warning!! snippet has later format version than hpaste. Consider updating hpaste to the latest version'
)
if data.get('signed', False):
print(
'HPaste: Warning!! this snippet seem to be signed, but this version of HPaste has no idea how to check signatures! so signature check will be skipped!'
)
# check accepted algtypes
supportedAlgs = set()
if houver1[0] == 15:
supportedAlgs.add(0)
supportedAlgs.add(1)
supportedAlgs.add(2) # WITH BIG WARNING!!!
if houver1[0] >= 16:
supportedAlgs.add(0)
supportedAlgs.add(1)
supportedAlgs.add(2)
algtype = data['algtype']
if algtype not in supportedAlgs:
raise RuntimeError(
"algorithm type is not supported by this houdini version, :( ")
# check hou version
houver2 = data['houver']
if not opt.getOption('hpaste.ignore_houversion_warning', False) and (
houver1[0] != houver2[0] or houver1[1] != houver2[1]):
print(
"HPaste: WARNING!! nodes were copied from a different houdini version: "
+ str(houver2))
# check context
context = getChildContext(hou_parent, houver1)
if context != data['context']:
raise InvalidContextError(
hou_parent, data['context']
) # RuntimeError("this snippet has '%s' context" % data['context'])
# check sum
code = data['code']
if hashlib.sha1(code).hexdigest() != data['chsum']:
raise RuntimeError("checksum failed!")
if paste_to_position:
if houver1[0] >= 16:
olditems = hou_parent.allItems()
else:
olditems = hou_parent.children()
deserialize = getDeserializer(enctype=data.get('encryptionType', None),
key=key,
**(data.get('encryptionData', None) or {}))
# do the work
for hdaitem in data.get('hdaList', []): # added in version 2.1
hdacode = deserialize(hdaitem['code'])
ntype = hdaitem['type']
ncategory = hdaitem['category']
if ignore_hdas_if_already_defined:
nodeType = hou.nodeType(hou.nodeTypeCategories()[ncategory], ntype)
if nodeType is not None:
# well, that's already a bad sign, means it is installed
continue
fd, temppath = tempfile.mkstemp()
try:
with open(temppath, 'wb') as f:
f.write(hdacode)
for hdadef in hou.hda.definitionsInFile(temppath):
hdadef.copyToHDAFile('Embedded')
# hdadef.save('Embedded')
finally:
os.close(fd)
if force_prefer_hdas:
embhdas = [
x for x in hou.hda.definitionsInFile("Embedded")
if (x.nodeType().name() == ntype
and x.nodeTypeCategory().name() == ncategory)
]
if len(embhdas) == 1:
embhdas[0].setIsPreferred(True)
# now nodes themselves
if formatVersion == 1:
code = binascii.a2b_qp(code)
elif formatVersion >= 2:
code = deserialize(code)
else:
raise RuntimeError(
"Very unexpected format version in a very unexpected place!")
load_warnings = []
if algtype == 0:
# high security risk!!
if hou.isUiAvailable():
ok = hou.ui.displayMessage(
"WARNING! The algorithm type used by the pasted snipped is legacy and present HIGH SECURITY RISK!\n be sure you TRUST THE SOURCE of the snippet!",
("CANCEL", "ok"),
severity=hou.severityType.Warning,
close_choice=0,
title="SECURITY WARNING")
else:
ok = 0
print(
"for now u cannot paste SECURITY RISK snippets in non-interactive mode"
)
if ok != 1:
return
exec(code, {}, {'hou': hou, 'hou_parent': hou_parent})
elif algtype == 1 or algtype == 2:
# get temp file
fd, temppath = tempfile.mkstemp()
try:
with open(temppath, "wb") as f:
f.write(code)
try:
if algtype == 1:
hou_parent.loadChildrenFromFile(temppath)
if algtype == 2:
try:
hou_parent.loadItemsFromFile(temppath)
except AttributeError:
print(
"WARNING!!! your hou version does not support algorithm used for copying, TRYING possibly partly backward-INCOMPATIBLE method!"
)
print("CHECK SCENE INTEGRITY")
hou_parent.loadChildrenFromFile(temppath)
except hou.LoadWarning as e:
msg = e.instanceMessage()
print(msg)
# truncate just for display with random number 253
msgtrunc = False
if len(msg) > 253:
msgtrunc = True
msg = msg[:253] + "..."
load_warnings.append("There were warnings during load" + (
"(see console for full message)" if msgtrunc else "") +
"\n" + msg)
finally:
os.close(fd)
else:
raise RuntimeError(
"algorithm type is not supported. Try updating hpaste to the latest version"
)
if paste_to_position:
# now collect pasted nodes
if houver1[0] >= 16:
newitems = [x for x in hou_parent.allItems() if x not in olditems]
else:
newitems = [x for x in hou_parent.children() if x not in olditems]
if len(newitems) == 0:
return
# calc center
cpos = hou.Vector2()
bbmin = hou.Vector2()
bbmax = hou.Vector2()
cnt = 0
for item in newitems:
cnt += 1
pos = item.position()
cpos += pos
for i in [0, 1]:
if pos[i] > bbmax[i] or cnt == 1:
bbmax[i] = pos[i]
if pos[i] < bbmin[i] or cnt == 1:
bbmin[i] = pos[i]
cpos = cpos / cnt
cpos[1] = bbmax[1]
if override_network_position is None:
offset = ne.cursorPosition() - cpos
else:
offset = override_network_position - cpos
for item in newitems:
if houver1[0] >= 16 and item.parentNetworkBox() in newitems:
continue
item.move(offset)
if len(load_warnings) > 0:
raise RuntimeWarning('snippet loaded with following warnings:\n' +
'\n'.join(load_warnings))
def stringToNodes(s, hou_parent=None, ne=None):
paste_to_cursor = ne is not None
if (hou_parent is None):
if (ne is None):
ne = hou.ui.paneTabOfType(hou.paneTabType.NetworkEditor)
if (ne is None):
raise RuntimeError("cannot find opened network editor")
hou_parent = ne.pwd()
s = str(s) # ununicode. there should not be any unicode in it anyways
try:
data = json.loads(bz2.decompress(base64.urlsafe_b64decode(s)))
except Exception as e:
raise RuntimeError(
"input data is either corrupted or just not a nodecode: " +
str(e.message))
# check version
formatVersion = data['version']
if (formatVersion > 2):
raise RuntimeError("unsupported version of data format")
# check accepted algtypes
houver1 = hou.applicationVersion()
supportedAlgs = set()
if (houver1[0] == 15):
supportedAlgs.add(0)
supportedAlgs.add(1)
supportedAlgs.add(2) #WITH BIG WARNING!!!
if (houver1[0] >= 16):
supportedAlgs.add(0)
supportedAlgs.add(1)
supportedAlgs.add(2)
algtype = data['algtype']
if (algtype not in supportedAlgs):
raise RuntimeError(
"algorithm type is not supported by this houdini version, :( ")
# check hou version
houver2 = data['houver']
if (houver1[0] != houver2[0] or houver1[1] != houver2[1]):
print(
"HPaste: WARNING!! nodes were copied from a different houdini version: "
+ str(houver2))
# check context
context = getChildContext(hou_parent, houver1)
if (context != data['context']):
raise RuntimeError("this snippet has '%s' context" % data['context'])
# check sum
code = data['code']
if (hashlib.sha1(code).hexdigest() != data['chsum']):
raise RuntimeError("checksum failed!")
if (paste_to_cursor):
if (houver1[0] == 16):
olditems = hou_parent.allItems()
else:
olditems = hou_parent.children()
# do the work
if (formatVersion == 1):
code = binascii.a2b_qp(code)
elif (formatVersion >= 2):
code = base64.b64decode(code)
else:
raise RuntimeError(
"Very unexpected format version in a very inexpected place!")
if (algtype == 0):
# high security risk!!
if (hou.isUiAvailable()):
ok = hou.ui.displayMessage(
"WARNING! The algorithm type used by the pasted snipped is legacy and present HIGH SECURITY RISK!\n be sure you TRUST THE SOURCE of the snippet!",
("CANCEL", "ok"),
severity=hou.severityType.Warning,
close_choice=0,
title="SECURITY WARNING")
else:
ok = 0
print(
"for now u cannot paste SECURITY RISK snippets in non-interactive mode"
)
if (ok != 1): return
exec(code, {}, {'hou': hou, 'hou_parent': hou_parent})
elif (algtype == 1 or algtype == 2):
# get temp file
fd, temppath = tempfile.mkstemp()
try:
with open(temppath, "wb") as f:
f.write(code)
try:
if (algtype == 1):
hou_parent.loadChildrenFromFile(temppath)
if (algtype == 2):
try:
hou_parent.loadItemsFromFile(temppath)
except AttributeError:
print(
"WARNING!!! your hou version does not support algorithm used for copying, TRYING possibly partly backward-INCOMPATIBLE method!"
)
print("CHECK SCENE INTEGRITY")
hou_parent.loadChildrenFromFile(temppath)
except hou.LoadWarning as e:
msg = e.instanceMessage()
print(msg)
# truncate just for display with random number 253
msgtrunc = False
if (len(msg) > 253):
msgtrunc = True
msg = msg[:253] + "..."
raise RuntimeWarning("There were warnings during load" + (
"(see console for full message)" if msgtrunc else "") +
"\n" + msg)
finally:
os.close(fd)
else:
raise RuntimeError("algorithm type is not supported")
if (paste_to_cursor):
#now collect pasted nodes
if (houver1[0] >= 16):
newitems = [x for x in hou_parent.allItems() if x not in olditems]
else:
newitems = [x for x in hou_parent.children() if x not in olditems]
if (len(newitems) == 0): return
#calc center
cpos = hou.Vector2()
bbmin = hou.Vector2()
bbmax = hou.Vector2()
cnt = 0
for item in newitems:
cnt += 1
pos = item.position()
cpos += pos
for i in [0, 1]:
if (pos[i] > bbmax[i]): bbmax[i] = pos[i]
if (pos[i] < bbmin[i]): bbmin[i] = pos[i]
cpos = cpos / cnt
cpos[1] = bbmax[1]
offset = ne.cursorPosition() - cpos
for item in newitems:
if (houver1[0] >= 16 and item.parentNetworkBox() in newitems):
continue
item.move(offset)
