Update test client to use SDK.
This commit is contained in:
Daniel Krol
parent
f31135dd8e
commit
2628ec7e5f
1 changed files with 72 additions and 56 deletions
|
|
@ -1,6 +1,6 @@
|
|||
#!/bin/python3
|
||||
from collections import namedtuple
|
||||
import random, string, json, uuid, requests, hashlib
|
||||
import json, uuid, requests, hashlib
|
||||
from pprint import pprint
|
||||
|
||||
CURRENT_VERSION = 1
|
||||
|
|
@ -185,7 +185,7 @@ class Client():
|
|||
|
||||
return True
|
||||
|
||||
def __init__(self):
|
||||
def __init__(self, email, root_password, wallet_id='default_wallet'):
|
||||
# Represents normal client behavior (though a real client will of course save device id)
|
||||
self.device_id = str(uuid.uuid4())
|
||||
|
||||
|
|
@ -193,11 +193,9 @@ class Client():
|
|||
|
||||
self.synced_wallet_state = None
|
||||
|
||||
# TODO - save change to disk in between, associated with account and/or
|
||||
# wallet
|
||||
self._encrypted_wallet_local_changes = ''
|
||||
|
||||
# TODO - make this act more sdk-like. in fact maybe even install the sdk?
|
||||
self.email = email
|
||||
self.root_password = root_password
|
||||
self.wallet_id = wallet_id
|
||||
|
||||
# TODO - This does not deal with the question of tying accounts to wallets.
|
||||
# Does a new wallet state mean a we're creating a new account? What happens
|
||||
|
|
@ -206,17 +204,37 @@ class Client():
|
|||
# Etc. This sort of depends on how the LBRY Desktop/SDK usually behave. For
|
||||
# now, it'll end up just merging any un-saved local changes with whatever is
|
||||
# on the server.
|
||||
def new_wallet_state(self):
|
||||
# Represents what's been synced to the wallet sync server. It starts with
|
||||
# sequence=0 which means nothing has been synced yet.
|
||||
self.synced_wallet_state = WalletState(sequence=0, encrypted_wallet='-')
|
||||
|
||||
# TODO - actual encryption with encryption_key - or maybe not.
|
||||
self._encrypted_wallet_local_changes = ''
|
||||
# TODO - Later, we should be saving the synced_wallet_state to disk, or
|
||||
# something like that, so we know whether there are unpushed changes on
|
||||
# startup (which should be uncommon but possible if crash or network problem
|
||||
# in previous run). This will be important when the client is responsible for
|
||||
# merging what comes from the server with those local unpushed changes. For
|
||||
# now, the SDK handles merges with timestamps and such so it's as safe as
|
||||
# always to just merge in.
|
||||
|
||||
def set_account(self, email, root_password):
|
||||
self.email = email
|
||||
self.root_password = root_password
|
||||
# TODO - Be careful of cases where get_remote_wallet comes back with "Not
|
||||
# Found" even though a wallet is actually on the server. We would start with
|
||||
# sequence=0 with the local encrypted wallet. Then next time we
|
||||
# get_remote_wallet, it returns the actual wallet, let's say sequence=5, and
|
||||
# it would write over what's locally saved. With the SDK as it is using
|
||||
# sync_apply, that's okay because it has a decent way of merging it. However
|
||||
# when the Desktop is in charge of merging, this could be a hazard. Saving
|
||||
# the state to disk could help. Or perhaps pushing first before pulling. Or
|
||||
# maybe if we're writing over sequence=0, we can know we should be "merging"
|
||||
# the local encrypted wallet with whatever comes from the server.
|
||||
def init_wallet_state(self):
|
||||
if self.get_remote_wallet() == "Not Found":
|
||||
print("No wallet found on the server for this account. Starting a new one.")
|
||||
|
||||
# Represents what's been synced to the wallet sync server. It starts with
|
||||
# sequence=0 which means nothing has been synced yet. We start with
|
||||
# whatever is in the SDK. Whether it's new or not, we (who choose to run
|
||||
# this method) are assuming it's not synced yet.
|
||||
self.synced_wallet_state = WalletState(
|
||||
sequence=0,
|
||||
encrypted_wallet=self.get_local_encrypted_wallet()
|
||||
)
|
||||
|
||||
def register(self):
|
||||
success = WalletSync.register(
|
||||
|
|
@ -239,51 +257,53 @@ class Client():
|
|||
|
||||
# TODO - What about cases where we are managing multiple different wallets?
|
||||
# Some will have lower sequences. If you accidentally mix it up client-side,
|
||||
# you might end up overwriting one with a lower sequence entirely. Maybe we
|
||||
# want to annotate them with which account we're talking about. Again, we
|
||||
# should see how LBRY Desktop/SDK deal with it.
|
||||
def get_wallet(self):
|
||||
# you might end up overwriting one wallet with another if the former has a
|
||||
# higher sequence number. Maybe we want to annotate them with which account
|
||||
# we're talking about. Again, we should see how LBRY Desktop/SDK deal with
|
||||
# it.
|
||||
|
||||
# Returns: status
|
||||
def get_remote_wallet(self):
|
||||
new_wallet_state, hmac = WalletSync.get_wallet(self.auth_token)
|
||||
|
||||
# If there was a failure
|
||||
if not new_wallet_state:
|
||||
return
|
||||
# Wallet not found, but this is not an error
|
||||
return "Not Found"
|
||||
|
||||
hmac_key = derive_hmac_key(self.root_password)
|
||||
if not check_hmac(new_wallet_state, hmac_key, hmac):
|
||||
print ('Error - bad hmac on new wallet')
|
||||
print (new_wallet_state, hmac)
|
||||
return
|
||||
return "Error"
|
||||
|
||||
if self.synced_wallet_state != new_wallet_state and not self._validate_new_wallet_state(new_wallet_state):
|
||||
print ('Error - new wallet does not validate')
|
||||
print ('current:', self.synced_wallet_state)
|
||||
print ('got:', new_wallet_state)
|
||||
return
|
||||
|
||||
if self.synced_wallet_state is None:
|
||||
# This is if we're getting a wallet_state for the first time. Initialize
|
||||
# the local changes.
|
||||
self._encrypted_wallet_local_changes = ''
|
||||
return "Error"
|
||||
|
||||
self.synced_wallet_state = new_wallet_state
|
||||
# TODO errors? sequence of events? This isn't gonna be quite right. Look at state diagrams.
|
||||
self.update_local_encrypted_wallet(new_wallet_state.encrypted_wallet)
|
||||
|
||||
print ("Got latest walletState:")
|
||||
pprint(self.synced_wallet_state)
|
||||
return "Success"
|
||||
|
||||
def update_wallet(self):
|
||||
# Returns: status
|
||||
def update_remote_wallet(self):
|
||||
# Create a *new* wallet state, indicating that it was last updated by this
|
||||
# device, with the updated sequence, and include our local encrypted wallet changes.
|
||||
# Don't set self.synced_wallet_state to this until we know that it's accepted by
|
||||
# the server.
|
||||
if not self.synced_wallet_state:
|
||||
print ("No wallet state to post.")
|
||||
return
|
||||
return "Error"
|
||||
|
||||
hmac_key = derive_hmac_key(self.root_password)
|
||||
|
||||
submitted_wallet_state = WalletState(
|
||||
encrypted_wallet=self.cur_encrypted_wallet(),
|
||||
encrypted_wallet=self.get_local_encrypted_wallet(),
|
||||
sequence=self.synced_wallet_state.sequence + 1
|
||||
)
|
||||
hmac = create_hmac(submitted_wallet_state, hmac_key)
|
||||
|
|
@ -291,45 +311,41 @@ class Client():
|
|||
# Submit our wallet, get the latest wallet back as a response
|
||||
new_wallet_state, new_hmac, conflict = WalletSync.update_wallet(submitted_wallet_state, hmac, self.auth_token)
|
||||
|
||||
# If there was a failure (not just a conflict)
|
||||
if not new_wallet_state:
|
||||
return
|
||||
|
||||
# TODO - there's some code in common here with the get_wallet function. factor it out.
|
||||
# TODO - there's some code in common here with the get_remote_wallet function. factor it out.
|
||||
|
||||
if not check_hmac(new_wallet_state, hmac_key, new_hmac):
|
||||
print ('Error - bad hmac on new wallet')
|
||||
print (new_wallet_state, hmac)
|
||||
return
|
||||
return "Error"
|
||||
|
||||
if submitted_wallet_state != new_wallet_state and not self._validate_new_wallet_state(new_wallet_state):
|
||||
print ('Error - new wallet does not validate')
|
||||
print ('current:', self.synced_wallet_state)
|
||||
print ('got:', new_wallet_state)
|
||||
return
|
||||
|
||||
# If there's not a conflict, we submitted successfully and should reset our previously local changes
|
||||
if not conflict:
|
||||
self._encrypted_wallet_local_changes = ''
|
||||
return "Error"
|
||||
|
||||
# TODO - `concflict` determines whether we need to a smart merge here.
|
||||
# However for now the SDK handles all of that.
|
||||
self.synced_wallet_state = new_wallet_state
|
||||
# TODO errors? sequence of events? This isn't gonna be quite right. Look at state diagrams.
|
||||
self.update_local_encrypted_wallet(new_wallet_state.encrypted_wallet)
|
||||
|
||||
print ("Got new walletState:")
|
||||
pprint(self.synced_wallet_state)
|
||||
return "Success"
|
||||
|
||||
def change_encrypted_wallet(self):
|
||||
if not self.synced_wallet_state:
|
||||
print ("No wallet state, so we can't add to it yet.")
|
||||
return
|
||||
def set_preference(self, key, value):
|
||||
# TODO - error checking
|
||||
return LBRYSDK.set_preference(key, value)
|
||||
|
||||
self._encrypted_wallet_local_changes += ':' + ''.join(random.choice(string.hexdigits) for x in range(4))
|
||||
def get_preferences(self):
|
||||
# TODO - error checking
|
||||
return LBRYSDK.get_preferences()
|
||||
|
||||
def cur_encrypted_wallet(self):
|
||||
if not self.synced_wallet_state:
|
||||
print ("No wallet state, so no encrypted wallet.")
|
||||
return
|
||||
def update_local_encrypted_wallet(self, encrypted_wallet):
|
||||
# TODO - error checking
|
||||
return LBRYSDK.update_wallet(self.wallet_id, derive_sdk_password(self.root_password), encrypted_wallet)
|
||||
|
||||
# The local changes on top of whatever came from the server
|
||||
# If we pull new changes from server, we "rebase" these on top of it
|
||||
# If we push changes, the full "rebased" version gets committed to the server
|
||||
return self.synced_wallet_state.encrypted_wallet + self._encrypted_wallet_local_changes
|
||||
def get_local_encrypted_wallet(self):
|
||||
# TODO - error checking
|
||||
return LBRYSDK.get_wallet(self.wallet_id, derive_sdk_password(self.root_password))
|
||||
|
|
|
|||
Loading…
Reference in a new issue