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filter.py
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filter.py
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
import requests
import json
def fix_json_with_commas(mixed_content):
# Manually parsing the JSON objects by counting braces
json_objects = []
brace_count = 0
current_json = ''
in_json = False
for char in mixed_content:
if char == '{':
if brace_count == 0:
in_json = True
current_json = char
else:
current_json += char
brace_count += 1
elif char == '}':
brace_count -= 1
if brace_count == 0 and in_json:
current_json += char
json_objects.append(current_json)
in_json = False
else:
current_json += char
elif in_json:
current_json += char
# Combine all JSON blocks into a valid JSON array string
combined_json = '[' + ','.join(json_objects) + ']'
return combined_json
def get_json_objects_by_public_key(json_data, owner_public_key=None, recipient_public_key=None):
matching_objects = []
for obj in json_data:
try:
# Check if the necessary fields are present
if 'inputs' in obj and 'outputs' in obj:
if owner_public_key is not None and recipient_public_key is not None:
if owner_public_key in obj['inputs'][0]['owners_before'] and recipient_public_key in obj['outputs'][0]['public_keys']:
matching_objects.append(obj)
elif owner_public_key is None and recipient_public_key is not None:
if recipient_public_key in obj['outputs'][0]['public_keys']:
matching_objects.append(obj)
elif owner_public_key is not None and recipient_public_key is None:
if owner_public_key in obj['inputs'][0]['owners_before']:
matching_objects.append(obj)
else:
matching_objects.append(obj) # Append all if no keys specified
except Exception as e:
print(f"Error processing JSON object: {e}")
return matching_objects
def get_json_data(url, ownerPublicKey=None, recipientPublicKey=None):
try:
response = requests.get(url)
# Check if the request was successful (status code 200)
if response.status_code == 200:
# Parse the JSON data from the response
json_text = fix_json_with_commas(response.text)
json_data = json.loads(json_text)
if ownerPublicKey == None and recipientPublicKey == None:
matching_objects = get_json_objects_by_public_key(json_data, None, None)
return matching_objects
elif ownerPublicKey == None and recipientPublicKey != None:
matching_objects = get_json_objects_by_public_key(json_data, None, recipientPublicKey)
return matching_objects
elif ownerPublicKey != None and recipientPublicKey == None:
matching_objects = get_json_objects_by_public_key(json_data, ownerPublicKey, None)
return matching_objects
else:
# Get all JSON objects that match the given publicKey
matching_objects = get_json_objects_by_public_key(json_data, ownerPublicKey, recipientPublicKey)
return matching_objects
else:
print(f"Error: Unable to retrieve data from {url}. Status code: {response.status_code}")
return None
except requests.exceptions.RequestException as e:
print(f"Error: {e}")
return None
def filter_by_keys(url, ownerPublicKey, recipientPublicKey):
json_data = get_json_data(url, ownerPublicKey, recipientPublicKey)
return json_data