cic-stack/apps/cic-cache/cic_cache/runnable/daemons/query.py

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2021-05-18 19:13:57 +02:00
# standard imports
import logging
import json
import re
import base64
# local imports
from cic_cache.cache import (
BloomCache,
DataCache,
)
logg = logging.getLogger(__name__)
re_transactions_all_bloom = r'/tx/(\d+)?/?(\d+)/?'
re_transactions_account_bloom = r'/tx/user/((0x)?[a-fA-F0-9]+)/?(\d+)?/?(\d+)/?'
re_transactions_all_data = r'/txa/(\d+)/(\d+)/?'
DEFAULT_LIMIT = 100
def process_transactions_account_bloom(session, env):
r = re.match(re_transactions_account_bloom, env.get('PATH_INFO'))
if not r:
return None
address = r[1]
if r[2] == None:
address = '0x' + address
offset = DEFAULT_LIMIT
if r.lastindex > 2:
offset = r[3]
limit = 0
if r.lastindex > 3:
limit = r[4]
c = BloomCache(session)
(lowest_block, highest_block, bloom_filter_block, bloom_filter_tx) = c.load_transactions_account(address, offset, limit)
o = {
'alg': 'sha256',
'low': lowest_block,
'high': highest_block,
'block_filter': base64.b64encode(bloom_filter_block).decode('utf-8'),
'blocktx_filter': base64.b64encode(bloom_filter_tx).decode('utf-8'),
'filter_rounds': 3,
}
j = json.dumps(o)
return ('application/json', j.encode('utf-8'),)
def process_transactions_all_bloom(session, env):
r = re.match(re_transactions_all_bloom, env.get('PATH_INFO'))
if not r:
return None
offset = DEFAULT_LIMIT
if r.lastindex > 0:
offset = r[1]
limit = 0
if r.lastindex > 1:
limit = r[2]
c = BloomCache(session)
(lowest_block, highest_block, bloom_filter_block, bloom_filter_tx) = c.load_transactions(offset, limit)
o = {
'alg': 'sha256',
'low': lowest_block,
'high': highest_block,
'block_filter': base64.b64encode(bloom_filter_block).decode('utf-8'),
'blocktx_filter': base64.b64encode(bloom_filter_tx).decode('utf-8'),
'filter_rounds': 3,
}
j = json.dumps(o)
return ('application/json', j.encode('utf-8'),)
def process_transactions_all_data(session, env):
r = re.match(re_transactions_all_data, env.get('PATH_INFO'))
if not r:
return None
if env.get('HTTP_X_CIC_CACHE_MODE') != 'all':
return None
offset = r[1]
end = r[2]
if r[2] < r[1]:
raise ValueError('cart before the horse, dude')
c = DataCache(session)
(lowest_block, highest_block, tx_cache) = c.load_transactions_with_data(offset, end)
for r in tx_cache:
r['date_block'] = r['date_block'].timestamp()
o = {
'low': lowest_block,
'high': highest_block,
'data': tx_cache,
}
j = json.dumps(o)
return ('application/json', j.encode('utf-8'),)