init

Author: xiaojay

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+.idea
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+#venv
+
+ar_wallet.json
+*.pdf
+
+everpay_venv

LICENSE

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+MIT License
+
+Copyright (c) 2021 everFinance
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# everpay.py
+
+Python sdk for [arseeding] (https://github.com/everFinance/arseeding).
+
+Install with
+
+```
+pip install arseeding
+```
+
+
+- Quick start
+
+upload python.pdf to arweave using arseeding
+
+```python
+
+import arseeding, everpay
+# ar account
+signer = everpay.ARSigner('ar_wallet.json')
+data = open('game.py', 'rb').read()
+o = arseeding.send_and_pay(signer, 'usdc', data)
+print(o)
+
+```

arseeding/__init__.py

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+import requests, json
+import everpay
+from .bundleitem import BundleItem
+
+arseed_url = 'https://arseed.web3infura.io'
+pay_url = 'https://api.everpay.io'
+def send_and_pay(signer, currency, data, target='', anchor='', tags=[], arseed_url=arseed_url):
+    if data == type(''):
+        data = data.encode()
+    
+    b = BundleItem(signer, target, anchor, tags, data)
+    url = "%s/bundle/tx/%s"%(arseed_url, currency)
+    res = requests.post(url=url,
+                    data=b.binary,
+                    headers={'Content-Type': 'application/octet-stream'}
+    )
+   
+    if res.status_code == 200:
+        order = res.json()
+        
+        account = everpay.Account(pay_url, signer)
+        account.transfer(currency, order['bundler'], int(order['fee']), data=json.dumps(order))
+
+        return order    
+

arseeding/bundleitem.py

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+import hashlib
+from arweave import deep_hash
+from jose.utils import base64url_decode, base64url_encode
+from .tags import serialize_tags
+
+sig_conf = {
+    'ar': {
+        'signature_type': 1,
+        'sig_length': 512,
+        'pub_length': 512,
+        'sig_name': 'arweave'
+    }
+}
+
+class BundleItem:
+    def __init__(self, signer, target, anchor, tags, data):
+        self.signer = signer
+        self.signature_type = sig_conf[signer.type.lower()]['signature_type']
+        self.owner = signer.owner
+        self.target = target
+        self.anchor = anchor
+        self.tags = tags
+        self.data = data
+        self.sign()
+        self.binary = self.get_item_binary()
+    
+    def get_data_to_sign(self):
+        datalist = [
+            b'dataitem',
+            b'1',
+            str(self.signature_type).encode(),
+            base64url_decode(self.signer.owner.encode()),
+            #self.target.encode(),
+            #self.anchor.encode(),
+            #serialize_tags(self.tags),
+            b'',
+            b'',
+            b'',
+            self.data
+        ]
+        return deep_hash.deep_hash(datalist)
+
+    def sign(self):
+        data = self.get_data_to_sign()
+        if self.signer.type == 'AR':
+            sig = self.signer.wallet.sign(data)
+            self.id = base64url_encode(hashlib.sha256(sig).digest()).decode()
+            self.signature = base64url_encode(sig).decode()
+
+    def get_item_binary(self):
+        if not self.id or not self.signature:
+            raise ValueError("no signature")
+        st = self.signature_type.to_bytes(2, byteorder='little')
+        sig = base64url_decode(self.signature.encode())
+        owner = base64url_decode(self.signer.owner.encode())
+        data = self.data      
+        return st+sig+owner+b"\x00\x00"+(0).to_bytes(8, byteorder='little') +(0).to_bytes(8, byteorder='little')+data

arseeding/tags.py

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+import io
+from fastavro import schemaless_writer, schemaless_reader, parse_schema
+
+schema = {
+    "type": "array", 
+    "items": {
+        "type": "record", 
+        "name": "Tag", 
+        "fields": [
+            {"name": "name", "type": "string"}, 
+            {"name": "value", "type": "string"}
+        ]
+    }
+}
+
+parsed_schema = parse_schema(schema)
+
+def serialize_tags(tags):
+    if len(tags) == 0:
+        return 
+    fo = io.BytesIO()
+    schemaless_writer(fo, parsed_schema, tags)
+    return fo.getvalue()
+
+def deserialize_tags(tags_serialized):
+    tags = []
+    fo = io.BytesIO(tags_serialized)
+    for tag in schemaless_reader(fo, parsed_schema):
+        tags.append(tag)
+    return tags

setup.py

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+import setuptools
+
+setuptools.setup(
+    name='arseeding',
+    version='0.0.1',
+    packages=['arseeding',],
+    license='MIT',
+    description = 'Python sdk for arseeding',
+    long_description=open('README.md').read(),
+    long_description_content_type="text/markdown",
+    author = 'xiaojay',
+    author_email = '[email protected]',
+    install_requires=['everpay', 'requests', 'web3', 'python-jose', 'arweave-python-client', 'eth_account', 'fastavro'],
+    url = 'https://github.com/everFinance/arseeding.py',
+    download_url = 'https://github.com/everFinance/arseeding.py/archive/refs/tags/v0.0.1.tar.gz',
+    classifiers=[
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 2",
+        "License :: OSI Approved :: MIT License",
+        "Operating System :: OS Independent",
+    ],
+)