def clean_search_string(self):
search_string = self.cleaned_data['search_string'].strip()
# process possible Wallet Names
if is_valid_wallet_name(search_string):
return search_string
# get rid of non alphanumerics
if search_string.lower().startswith("0x"):
search_string = search_string[2:]
search_string = re.sub(r'[^a-zA-Z0-9]+', '', search_string)
if is_valid_hash(search_string) or is_valid_address(search_string) or is_valid_eth_address(search_string) or is_valid_block_num(search_string):
return search_string
else:
err_msg = _('Not a valid address, transaction hash, or block number')
raise forms.ValidationError(err_msg)
def home(request):
form = SearchForm(initial={
'search_string': '16Fg2yjwrbtC6fZp61EV9mNVKmwCzGasw5',
'coin_symbol': 'btc',
})
if request.method == 'POST':
form = SearchForm(data=request.POST)
if form.is_valid():
redirect_url = None
search_string = form.cleaned_data['search_string']
coin_symbol = form.cleaned_data['coin_symbol']
kwargs = {'coin_symbol': coin_symbol}
if is_valid_block_num(search_string):
kwargs['block_representation'] = search_string
redirect_url = reverse('block_overview', kwargs=kwargs)
elif is_valid_hash(search_string):
if coin_symbol in SHA_COINS:
if is_valid_sha_block_hash(search_string):
kwargs['block_representation'] = search_string
redirect_url = reverse('block_overview', kwargs=kwargs)
else:
kwargs['tx_hash'] = search_string
redirect_url = reverse('transaction_overview', kwargs=kwargs)
elif coin_symbol in SCRYPT_COINS:
# Try to see if it's a valid TX hash
tx_details = get_transaction_details(
tx_hash=search_string,
coin_symbol=coin_symbol,
limit=1,
api_key=BLOCKCYPHER_API_KEY,
)
if 'error' in tx_details:
# Not a valid TX hash, see if it's a block hash by checking blockchain
block_details = get_block_overview(
block_representation=search_string,
coin_symbol=coin_symbol,
txn_limit=1,
api_key=BLOCKCYPHER_API_KEY,
)
if 'error' in block_details:
msg = _("Sorry, '%(search_string)s' is not a valid transaction or block hash for %(currency)s" % {
'currency': coin_symbol,
'search_string': search_string,
})
messages.error(request, msg)
else:
kwargs['block_representation'] = search_string
redirect_url = reverse('block_overview', kwargs=kwargs)
else:
kwargs['tx_hash'] = search_string
redirect_url = reverse('transaction_overview', kwargs=kwargs)
elif coin_symbol in ETHASH_COINS:
# Try to see if it's a valid TX hash
search_string = search_string.lower()
tx_details = get_transaction_details(
tx_hash=search_string,
coin_symbol=coin_symbol,
limit=1,
api_key=BLOCKCYPHER_API_KEY,
)
if 'error' in tx_details:
# Not a valid TX hash, see if it's a block hash by checking blockchain
block_details = get_block_overview(
block_representation=search_string,
coin_symbol=coin_symbol,
txn_limit=1,
api_key=BLOCKCYPHER_API_KEY,
)
if 'error' in block_details:
msg = _("Sorry, '%(search_string)s' is not a valid transaction or block hash for %(currency)s" % {
'currency': coin_symbol,
'search_string': search_string,
})
messages.error(request, msg)
else:
kwargs['block_representation'] = search_string
redirect_url = reverse('block_overview', kwargs=kwargs)
else:
kwargs['tx_hash'] = search_string
redirect_url = reverse('transaction_overview', kwargs=kwargs)
elif is_valid_address(search_string):
# It's an address
kwargs['address'] = search_string
# Look first for bech32 address
if search_string.startswith('bc1'):
kwargs['coin_symbol'] = 'btc'
elif search_string.startswith('ltc1'):
kwargs['coin_symbol'] = 'ltc'
elif search_string.startswith('tb1'):
kwargs['coin_symbol'] = 'btc-testnet'
elif search_string.startswith('bcy1'):
kwargs['coin_symbol'] = 'bcy'
print(kwargs)
else:
# After look at first char
first_char = search_string[0]
# Override coin_symbol if we can infer it from the blockchain
# There is now generic constants in the python library (constants.py)
# Not migrating because this is custom (those constants have overlap/ambiguity)
if first_char in ('1', 'b', ):
# Do not force addresses starting with 3 to be BTC because that's also used by LTC
kwargs['coin_symbol'] = 'btc'
elif first_char in ('m', 'n', '2', 't', ):
# Note that addresses starting in 2 can be LTC testnet, but since we don't support that it's okay to include
kwargs['coin_symbol'] = 'btc-testnet'
elif first_char in ('9', 'A', 'D',):
kwargs['coin_symbol'] = 'doge'
elif first_char in ('X', '7'):
kwargs['coin_symbol'] = 'dash'
elif first_char in ('L', 'l','M', ):
# Do not force addresses starting with 3 to be LTC because that's also used by BTC
kwargs['coin_symbol'] = 'ltc'
elif first_char in ('B', 'C'):
kwargs['coin_symbol'] = 'bcy'
redirect_url = reverse('address_overview', kwargs=kwargs)
elif is_valid_eth_address(search_string):
# It's an address
kwargs['address'] = search_string
kwargs['coin_symbol'] = 'eth'
redirect_url = reverse('address_overview', kwargs=kwargs)
elif is_valid_wallet_name(search_string):
addr = lookup_wallet_name(search_string, kwargs['coin_symbol'])
if addr:
kwargs['address'] = addr
kwargs['wallet_name'] = search_string
redirect_url = reverse('address_overview', kwargs=kwargs)
else:
msg = _("Sorry, that's not a valid wallet name")
messages.error(request, msg)
if redirect_url:
return HttpResponseRedirect(redirect_url)
else:
currency = COIN_SYMBOL_MAPPINGS[request.POST['coin_symbol']]['display_shortname']
msg = _("Sorry, '%(search_string)s' is not a valid %(currency)s address, wallet name, transaction or block" % {
'currency': currency,
'search_string': request.POST['search_string'],
})
messages.error(request, msg)
return {
'is_home': True,
'form': form,
'is_input_page': True,
}