def warn_if_no_secp(self, parent=None, message=None, icon=QMessageBox.Warning):
''' Returns True if it DID warn: ie if there's no secp and ecc operations
are slow, otherwise returns False if we have secp.
Pass message (rich text) to provide a custom message.
Note that the URL link to the HOWTO will always be appended to the custom message.'''
from electroncash import ecc_fast
has_secp = ecc_fast.is_using_fast_ecc()
if has_secp:
return False
# else..
howto_url = 'https://github.com/Bitcoin-ABC/ElectrumABC/blob/master/contrib/secp_HOWTO.md'
message = message or _(
f"{PROJECT_NAME} was unable to find the secp256k1 library on this "
f"system. Elliptic curve cryptography operations will be performed"
f" in slow Python-only mode."),
url_blurb = _("Please visit this page for instructions on how to "
"correct the situation:")
msg = f'''
<html><body>
<p>
{message}
<p>
{url_blurb}
</p>
<p><a href="{howto_url}">{PROJECT_NAME} Secp Mini-HOWTO</a></p>
</body></html>
'''
self.warning(parent=parent, title=_("Missing libsecp256k1"),
message=msg, rich_text=True)
return True
def thrdfunc(config_options):
# lazy init of SSL
import ssl, sys
from electroncash import version, ecc_fast, schnorr
NSLog("Electron Cash lib version: %s (using server protocol: %s)",
version.PACKAGE_VERSION, version.PROTOCOL_VERSION)
NSLog("Python version: %s", ' '.join(sys.version.split('\n')))
NSLog("OpenSSL version: %s", ssl.OPENSSL_VERSION)
NSLog("Fast ECC: %s Fast Schnorr: %s",
str(ecc_fast.is_using_fast_ecc()), str(schnorr.has_fast_sign()))
def warn_if_no_secp(self,
parent=None,
message=None,
icon=QMessageBox.Warning,
relaxed=False):
''' Returns True if it DID warn: ie if there's no secp and ecc operations
are slow, otherwise returns False if we have secp.
Pass message (rich text) to provide a custom message.
Note that the URL link to the HOWTO will always be appended to the custom message.'''
from electroncash import ecc_fast
has_secp = ecc_fast.is_using_fast_ecc()
if has_secp:
return False
# When relaxwarn is set return True without showing the warning
from electroncash import get_config
if relaxed and get_config().cmdline_options["relaxwarn"]:
return True
# else..
howto_url = 'https://github.com/Electron-Cash/Electron-Cash/blob/master/contrib/secp_HOWTO.md#libsecp256k1-0-for-electron-cash'
template = '''
<html><body>
<p>
{message}
<p>
{url_blurb}
</p>
<p><a href="{url}">Electron Cash Secp Mini-HOWTO</a></p>
</body></html>
'''
msg = template.format(
message=message or
_("Electron Cash was unable to find the secp256k1 library on this system. Elliptic curve cryptography operations will be performed in slow Python-only mode."
),
url=howto_url,
url_blurb=
_("Please visit this page for instructions on how to correct the situation:"
))
self.warning(parent=parent,
title=_("Missing libsecp256k1"),
message=msg,
rich_text=True)
return True
