def add_metadata_to_tx(request, coin_symbol, tx_hash):
if not is_valid_hash(tx_hash):
return Http404
initial = {}
form = BaseMetadataForm(initial=initial)
if request.method == 'POST':
form = BaseMetadataForm(data=request.POST)
if form.is_valid():
metadata_key = form.cleaned_data.get('metadata_key')
metadata_value = form.cleaned_data.get('metadata_value')
results = put_metadata(
metadata_dict={metadata_key: metadata_value},
tx_hash=tx_hash,
coin_symbol=coin_symbol,
api_key=BLOCKCYPHER_API_KEY,
private=False,
)
# import pprint; pprint.pprint(results, width=1)
if results is True:
msg = _('<pre>%(key)s</pre>-><pre>%(value)s</pre> succesfully uploaded to %(upload_string)s (<a href="#metadata">scroll down</a>)' % {
'key': metadata_key,
'value': metadata_value,
'upload_string': tx_hash,
})
messages.success(request, msg, extra_tags='safe')
redir_url = reverse(
'transaction_overview',
kwargs={
'coin_symbol': coin_symbol,
'tx_hash': tx_hash,
},
)
return HttpResponseRedirect(redir_url)
elif 'error' in results:
messages.warning(request, results.get('error'))
elif 'errors' in results:
for error in results.get('errors'):
messages.warning(request, error)
elif request.method == 'GET':
# Preseed tx hex if passed through GET string
key = request.GET.get('k')
value = request.GET.get('v')
if key:
initial['metadata_key'] = key
if value:
initial['metadata_value'] = value
if key or value:
form = BaseMetadataForm(initial=initial)
return {
'form': form,
'is_input_page': True,
'coin_symbol': coin_symbol,
'tx_hash': tx_hash,
}
def add_metadata_to_tx(request, coin_symbol, tx_hash):
if not is_valid_hash(tx_hash):
return Http404
initial = {}
form = BaseMetadataForm(initial=initial)
if request.method == 'POST':
form = BaseMetadataForm(data=request.POST)
if form.is_valid():
metadata_key = form.cleaned_data.get('metadata_key')
metadata_value = form.cleaned_data.get('metadata_value')
results = put_metadata(
metadata_dict={metadata_key: metadata_value},
tx_hash=tx_hash,
coin_symbol=coin_symbol,
api_key=BLOCKCYPHER_API_KEY,
private=False,
)
# import pprint; pprint.pprint(results, width=1)
if results is True:
msg = _('<pre>%(key)s</pre>-><pre>%(value)s</pre> succesfully uploaded to %(upload_string)s (<a href="#metadata">scroll down</a>)' % {
'key': metadata_key,
'value': metadata_value,
'upload_string': tx_hash,
})
messages.success(request, msg, extra_tags='safe')
redir_url = reverse(
'transaction_overview',
kwargs={
'coin_symbol': coin_symbol,
'tx_hash': tx_hash,
},
)
return HttpResponseRedirect(redir_url)
elif 'error' in results:
messages.warning(request, results.get('error'))
elif 'errors' in results:
for error in results.get('errors'):
messages.warning(request, error)
elif request.method == 'GET':
# Preseed tx hex if passed through GET string
key = request.GET.get('k')
value = request.GET.get('v')
if key:
initial['metadata_key'] = key
if value:
initial['metadata_value'] = value
if key or value:
form = BaseMetadataForm(initial=initial)
return {
'form': form,
'is_input_page': True,
'coin_symbol': coin_symbol,
'tx_hash': tx_hash,
}
def clean_search_string(self):
search_string = self.cleaned_data['search_string'].strip()
# get rid of non alphanumerics
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_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 clean(self):
where_to_upload = self.cleaned_data.get('where_to_upload')
upload_string = self.cleaned_data.get('upload_string')
coin_symbol = self.cleaned_data.get('coin_symbol')
if not where_to_upload or not upload_string:
return self.cleaned_data
if where_to_upload == 'address':
if not is_valid_address_for_coinsymbol(upload_string, coin_symbol):
cs_display = COIN_SYMBOL_MAPPINGS[coin_symbol]['display_name']
msg = _("Sorry, that's not a valid address for %(coin_symbol)s" % {'coin_symbol': cs_display})
raise forms.ValidationError(msg)
elif where_to_upload == 'transaction':
if not is_valid_hash(upload_string):
msg = _("Sorry, that's not a valid transaction hash")
raise forms.ValidationError(msg)
elif where_to_upload == 'block':
if not is_valid_hash(upload_string):
msg = _("Sorry, that's not a valid block hash")
raise forms.ValidationError(msg)
else:
raise Exception('Logic Fail: Not Possible')
return self.cleaned_data
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
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_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 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 is_valid_address(search_string):
# It's an address
kwargs['address'] = search_string
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', ):
# 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'):
# 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'):
kwargs['coin_symbol'] = 'doge'
elif first_char in ('L', ):
# 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_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}
def test_invalid_hash(self):
assert not is_valid_hash(self.invalid_hash), self.invalid_hash
def test_valid_hash(self):
assert is_valid_hash(self.valid_hash), self.valid_hash
def test_invalid_hash(self):
assert not is_valid_hash(self.invalid_hash), self.invalid_hash
def test_valid_hash(self):
assert is_valid_hash(self.valid_hash), self.valid_hash
def block_overview(request, coin_symbol, block_representation):
TXNS_PER_PAGE = 20
# 1 indexed page
current_page = request.GET.get('page')
if current_page:
current_page = int(current_page)
else:
current_page = 1
# TODO: fail gracefully if the user picks a number of pages that is too large
# Waiting on @matthieu's change to API first (currently throws 502)
try:
if not is_valid_hash(block_representation):
# it's a block num, we want this as a hash
block_hash = get_block_hash(
block_height=block_representation,
coin_symbol=coin_symbol,
api_key=BLOCKCYPHER_API_KEY,
)
kwargs = {
'coin_symbol': coin_symbol,
'block_representation': block_hash,
}
redir_url = reverse('block_overview', kwargs=kwargs)
return HttpResponseRedirect(redir_url)
block_details = get_block_details(
block_representation=block_representation,
coin_symbol=coin_symbol,
txn_limit=TXNS_PER_PAGE,
in_out_limit=25,
txn_offset=(current_page - 1) * TXNS_PER_PAGE,
api_key=BLOCKCYPHER_API_KEY,
)
except AssertionError:
msg = _('Invalid Block Representation')
messages.warning(request, msg)
redir_url = reverse('coin_overview',
kwargs={'coin_symbol': coin_symbol})
return HttpResponseRedirect(redir_url)
# import pprint; pprint.pprint(block_details, width=1)
if 'error' in block_details:
msg = _('Sorry, that block was not found')
messages.warning(request, msg)
messages.warning(request, block_details['error'])
return HttpResponseRedirect(reverse('home'))
# Technically this is not the only API call used on this page
api_url = 'https://api.blockcypher.com/v1/%s/%s/blocks/%s' % (
COIN_SYMBOL_MAPPINGS[coin_symbol]['blockcypher_code'],
COIN_SYMBOL_MAPPINGS[coin_symbol]['blockcypher_network'],
block_representation,
)
return {
'coin_symbol':
coin_symbol,
'api_url':
api_url,
'block_details':
block_details,
'current_page':
current_page,
'max_pages':
get_max_pages(num_items=block_details['n_tx'],
items_per_page=TXNS_PER_PAGE),
}
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, that's not a valid transaction or block hash for %(currency)s" % {'currency': coin_symbol})
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
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', ):
# 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'):
# 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'):
kwargs['coin_symbol'] = 'doge'
elif first_char in ('L', ):
# 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 ('U', ):
kwargs['coin_symbol'] = 'uro'
elif first_char in ('B', 'C'):
kwargs['coin_symbol'] = 'bcy'
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, that's not a valid %(currency)s address, wallet name, transaction or block" % {
'currency': currency})
messages.error(request, msg)
return {
'is_home': True,
'form': form
}
def get_tx_url(tx_hash, coin_symbol):
assert is_valid_coin_symbol(coin_symbol), coin_symbol
assert is_valid_hash(tx_hash), tx_hash
return 'https://live.blockcypher.com/%s/tx/%s/' % (coin_symbol, tx_hash)
def get_tx_url(tx_hash, coin_symbol):
assert is_valid_coin_symbol(coin_symbol), coin_symbol
assert is_valid_hash(tx_hash), tx_hash
return 'https://live.blockcypher.com/%s/tx/%s/' % (coin_symbol, tx_hash)
def block_overview(request, coin_symbol, block_representation):
TXNS_PER_PAGE = 20
# 1 indexed page
current_page = request.GET.get('page')
if current_page:
current_page = int(current_page)
else:
current_page = 1
# TODO: fail gracefully if the user picks a number of pages that is too large
# Waiting on @matthieu's change to API first (currently throws 502)
try:
if not is_valid_hash(block_representation):
# it's a block num, we want this as a hash
block_hash = get_block_hash(
block_height=block_representation,
coin_symbol=coin_symbol,
api_key=BLOCKCYPHER_API_KEY,
)
kwargs = {
'coin_symbol': coin_symbol,
'block_representation': block_hash,
}
redir_url = reverse('block_overview', kwargs=kwargs)
return HttpResponseRedirect(redir_url)
block_details = get_block_details(
block_representation=block_representation,
coin_symbol=coin_symbol,
txn_limit=TXNS_PER_PAGE,
in_out_limit=25,
txn_offset=(current_page-1)*TXNS_PER_PAGE,
api_key=BLOCKCYPHER_API_KEY,
)
except AssertionError:
msg = _('Invalid Block Representation')
messages.warning(request, msg)
redir_url = reverse('coin_overview', kwargs={'coin_symbol': coin_symbol})
return HttpResponseRedirect(redir_url)
# import pprint; pprint.pprint(block_details, width=1)
if 'error' in block_details:
msg = _('Sorry, that block was not found')
messages.warning(request, msg)
messages.warning(request, block_details['error'])
return HttpResponseRedirect(reverse('home'))
# Technically this is not the only API call used on this page
api_url = 'https://api.blockcypher.com/v1/%s/%s/blocks/%s' % (
COIN_SYMBOL_MAPPINGS[coin_symbol]['blockcypher_code'],
COIN_SYMBOL_MAPPINGS[coin_symbol]['blockcypher_network'],
block_representation,
)
return {
'coin_symbol': coin_symbol,
'api_url': api_url,
'block_details': block_details,
'current_page': current_page,
'max_pages': get_max_pages(num_items=block_details['n_tx'], items_per_page=TXNS_PER_PAGE),
}