mirror of
https://github.com/LBRYFoundation/LBRY-Vault.git
synced 2025-08-23 17:47:31 +00:00
5997c18aef
function parameters should be lowercase Fix crash on invalid labels import Added invoice exporting and reduced duplicate code Better exception handling removed json module import some more cleanup Cleaned up some stuff Added exporting contacts
131 lines
4.1 KiB
Python
131 lines
4.1 KiB
Python
# Electrum - Lightweight Bitcoin Client
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# Copyright (c) 2015 Thomas Voegtlin
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import re
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import dns
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import json
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import traceback
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import sys
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import os
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from . import bitcoin
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from . import dnssec
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from .util import export_meta, import_meta
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class Contacts(dict):
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def __init__(self, storage):
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self.storage = storage
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d = self.storage.get('contacts', {})
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try:
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self.update(d)
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except:
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return
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# backward compatibility
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for k, v in self.items():
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_type, n = v
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if _type == 'address' and bitcoin.is_address(n):
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self.pop(k)
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self[n] = ('address', k)
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def save(self):
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self.storage.put('contacts', dict(self))
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def import_file(self, path):
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import_meta(path, self.validate, self.load_meta)
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def load_meta(self, data):
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self.update(data)
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self.save()
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def export_file(self, fileName):
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export_meta(self, fileName)
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def __setitem__(self, key, value):
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dict.__setitem__(self, key, value)
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self.save()
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def pop(self, key):
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if key in self.keys():
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dict.pop(self, key)
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self.save()
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def resolve(self, k):
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if bitcoin.is_address(k):
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return {
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'address': k,
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'type': 'address'
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}
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if k in self.keys():
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_type, addr = self[k]
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if _type == 'address':
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return {
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'address': addr,
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'type': 'contact'
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}
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out = self.resolve_openalias(k)
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if out:
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address, name, validated = out
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return {
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'address': address,
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'name': name,
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'type': 'openalias',
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'validated': validated
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}
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raise Exception("Invalid Bitcoin address or alias", k)
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def resolve_openalias(self, url):
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# support email-style addresses, per the OA standard
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url = url.replace('@', '.')
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records, validated = dnssec.query(url, dns.rdatatype.TXT)
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prefix = 'btc'
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for record in records:
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string = record.strings[0]
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if string.startswith('oa1:' + prefix):
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address = self.find_regex(string, r'recipient_address=([A-Za-z0-9]+)')
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name = self.find_regex(string, r'recipient_name=([^;]+)')
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if not name:
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name = address
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if not address:
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continue
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return address, name, validated
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def find_regex(self, haystack, needle):
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regex = re.compile(needle)
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try:
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return regex.search(haystack).groups()[0]
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except AttributeError:
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return None
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def validate(self, data):
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for k,v in list(data.items()):
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if k == 'contacts':
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return self._validate(v)
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if not bitcoin.is_address(k):
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data.pop(k)
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else:
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_type,_ = v
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if _type != 'address':
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data.pop(k)
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return data
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