btcpay working! added bitpay client code to source tree to fix a bug

fixed a stripe race condition

added account balance warning to account balance page

capsulflask/btcpay/client.py

@@ -0,0 +1,121 @@
+from capsulflask.btcpay.exceptions import *
+from capsulflask.btcpay import key_utils
+import requests
+import json
+import re
+
+class Client:
+  def __init__(self, api_uri="https://bitpay.com", insecure=False, pem=key_utils.generate_pem(), tokens={}):
+    self.uri = api_uri
+    self.verify = not(insecure)
+    self.pem = pem
+    self.client_id = key_utils.get_sin_from_pem(pem)
+    self.tokens = tokens
+    self.user_agent = 'bitpay-python'
+
+  def pair_pos_client(self, code):
+    if re.match("^\w{7,7}$", code) is None:
+      raise BtcPayArgumentError("pairing code is not legal")
+    payload = {'id': self.client_id, 'pairingCode': code}
+    response = self.unsigned_request('/tokens', payload)
+    if response.ok:
+      self.tokens = self.token_from_response(response.json())
+      return self.tokens 
+    self.response_error(response)
+
+  def create_token(self, facade):
+    payload = {'id': self.client_id, 'facade': facade}
+    response = self.unsigned_request('/tokens', payload)
+    if response.ok:
+      self.tokens = self.token_from_response(response.json())
+      return response.json()['data'][0]['pairingCode']
+    self.response_error(response)
+
+  def create_invoice(self, params):
+    self.verify_invoice_params(params['price'], params['currency'])
+    payload = json.dumps(params)
+    uri = self.uri + "/invoices"
+    xidentity = key_utils.get_compressed_public_key_from_pem(self.pem)
+    xsignature = key_utils.sign(uri + payload, self.pem)
+    headers = {"content-type": "application/json", 'X-Identity': xidentity, 'X-Signature': xsignature, 'X-accept-version': '2.0.0'}
+    try:
+      response = requests.post(uri, data=payload, headers=headers, verify=self.verify)
+    except Exception as pro:
+      raise BtcPayConnectionError(pro.args)
+    if response.ok:
+      return response.json()['data']
+    self.response_error(response)
+
+  def get_invoice(self, invoice_id):
+    uri = self.uri + "/invoices/" + invoice_id
+    xidentity = key_utils.get_compressed_public_key_from_pem(self.pem)
+    xsignature = key_utils.sign(uri, self.pem)
+    headers = {"content-type": "application/json", 'X-Identity': xidentity, 'X-Signature': xsignature, 'X-accept-version': '2.0.0'}
+
+    try:
+      response = requests.get(uri, headers=headers, verify=self.verify)
+    except Exception as pro:
+      raise BtcPayConnectionError(pro.args)
+    if response.ok:
+      return response.json()['data']
+    self.response_error(response)
+
+  def verify_tokens(self):
+    """
+    Deprecated, will be made private in 2.4
+    """
+    xidentity = key_utils.get_compressed_public_key_from_pem(self.pem)
+    url = self.uri + "/tokens"
+    xsignature = key_utils.sign(self.uri + "/tokens", self.pem)
+    headers = {"content-type": "application/json", 'X-Identity': xidentity, 'X-Signature': xsignature, 'X-accept-version': '2.0.0'}
+    response = requests.get(self.uri + "/tokens", headers=headers, verify=self.verify)
+    if response.ok:
+      allTokens = response.json()['data']
+      selfKeys = self.tokens.keys() 
+      matchedTokens = [token for token in allTokens for key in selfKeys if token.get(key) == self.tokens.get(key)]
+      if not matchedTokens:
+        return False
+      return True
+
+  def token_from_response(self, responseJson):
+    """
+    Deprecated, will be made private in 2.4
+    """
+    token = responseJson['data'][0]['token']
+    facade = responseJson['data'][0]['facade']
+    return {facade: token}
+    raise BtcPayBtcPayError('%(code)d: %(message)s' % {'code': response.status_code, 'message': response.json()['error']})
+
+  def verify_invoice_params(self, price, currency):
+    """
+    Deprecated, will be made private in 2.4
+    """
+    if re.match("^[A-Z]{3,3}$", currency) is None:
+      raise BtcPayArgumentError("Currency is invalid.")
+    try: 
+      float(price)
+    except:
+      raise BtcPayArgumentError("Price must be formatted as a float")
+  def response_error(self, response):
+    raise BtcPayBtcPayError('%(code)d: %(message)s' % {'code': response.status_code, 'message': response.json()['error']})
+
+  def unsigned_request(self, path, payload=None):
+    """
+    generic btcpay usigned wrapper
+    passing a payload will do a POST, otherwise a GET
+    """
+    headers = {"content-type": "application/json", "X-accept-version": "2.0.0"}
+    try:
+      if payload:
+        response = requests.post(self.uri + path, verify=self.verify, data=json.dumps(payload), headers=headers)
+      else:
+        response = requests.get(self.uri + path, verify=self.verify, headers=headers)
+    except Exception as pro:
+      raise BtcPayConnectionError('Connection refused')
+    return response
+
+  def unsigned_get_request(self, path, payload=None):
+    """
+    Deprecated, will be removed in 2.4
+    """
+    return self.unsigned_request('/tokens', payload)