def get64(url):
"""
Method returning base64 image data instead of URL
"""
if url.startswith("http"):
image = BytesIO.StringIO(urllib.urlopen(url).read())
return 'data:image/jpg;base64,' + base64.b64encode(image.read())
return url
def startTest(self, test):
TestResult.startTest(self, test)
# just one buffer for both stdout and stderr
self.outputBuffer = StringIO.StringIO()
stdout_redirector.fp = self.outputBuffer
stderr_redirector.fp = self.outputBuffer
self.stdout0 = sys.stdout
self.stderr0 = sys.stderr
sys.stdout = stdout_redirector
sys.stderr = stderr_redirector
def generate_pdf(template_name,
file_object=None,
context=None,
link_callback=fetch_resources): # pragma: no cover
"""
Uses the xhtml2pdf library to render a PDF to the passed file_object, from the
given template name.
This returns the passed-in file object, filled with the actual PDF data.
In case the passed in file object is none, it will return a StringIO instance.
"""
if not file_object:
file_object = StringIO.StringIO()
if not context:
context = {}
tmpl = get_template(template_name)
generate_pdf_template_object(tmpl,
file_object,
context,
link_callback=link_callback)
return file_object
def from_gbt(cls,
retval,
coinbase,
extra_length=0,
transactions=None,
pos=False):
""" Creates a block template object from a get block template call
and a coinbase transaction object. extra_length needs to be the length
of padding that was added for extranonces (both 1 and 2 if added).
Transactions should be a list of Transaction objects that will be
put into the block. """
if transactions is None:
transactions = []
coinbase1, coinbase2 = coinbase.assemble(split=True)
inst = cls(pos=pos)
inst.hashprev = unhexlify(reverse_hash(retval['previousblockhash']))
inst.ntime = retval['curtime']
inst.bits = unhexlify(retval['bits'])
inst.version = retval['version']
inst.total_value = retval['coinbasevalue']
# Darkcoin
inst.masternode_payments = retval.get('masternode_payments')
for vote in retval.get('votes', []):
v = CMasterNodeVote()
v.deserialize(StringIO.StringIO(unhexlify(vote)))
inst.vmn.append(v)
# chop the padding off the coinbase1 for extranonces to be put
if extra_length > 0:
inst.coinbase1 = coinbase1[:-1 * extra_length]
else:
inst.coinbase1 = coinbase1
inst.coinbase2 = coinbase2
inst.transactions = transactions
return inst