Replace Sapling support-related asserts with JSON errors
This helps prevent users from triggering an assert if they pass in Sapling addresses to RPC calls which do not fully support Sapling yet: z_mergetoaddress, z_importviewingkey and z_exportviewingkey.
Part of #3533.
This helps prevent users from triggering an assert if they pass in
Sapling addresses to RPC calls: z_mergetoaddress, z_importviewingkey
and z_exportviewingkey.
Fix signing raw transactions with unsynced offline nodes
This PR address the issue in two different ways:
- In `signrawtransaction` we determine the consensus branch ID (which we then later use to construct the transaction) using the chain height. We now also consider the `APPROX_RELEASE_HEIGHT` as this is a better estimation than 0 for the height of the chain if we are unsynced. (This in and of itself solves the Overwinter signing issue).
- We have added an additional parameter to `signrawtransaction` to allow manually overriding the consensus branch ID that zcashd determines we are on. This allows users to work around corner cases where the first strategy is still insufficient.
Closes#3327.
Test peer banning logic in both pre- and post-initial block download states
The DoS ban scores are different for each, and it's nice to test both.
Follow-on from #3410.
Rpc test cleanup
The main purpose of this PR was to inline the method 'wait_for_async_operation_id' from util.py in tests where we were doing this manually. To make it work in all cases, I had to change the method to return the result in the case where the call failed. I also did a bit of general clean up (removing semicolons) in the files which I changed.
Fix assertion failure in circuit.merkle_tree_gadget_weirdness test on Windows
zcash-gtest.exe fails
```
[ RUN ] circuit.merkle_tree_gadget_weirdness
Assertion failed!
Program: C:\zcash-gtest.exe
File: ./snark/libsnark/gadgetlib1/gadgets/basic_gadgets.tcc, Line 50
Expression: this->pb.lc_val(packed).as_bigint().num_bits() <= bits.size()
```
The argument type of `__builtin_clzl()` function is unsigned long.
So, we need to replace `__builtin_clzl` with `__builtin_clzll`. (The argument type of `__builtin_clzll()` is unsigned long long (64bit)).
Refactor ContextualCheckBlock tests
This cleans up and condenses our quadratically-scaling transaction format / consensus rule tests. They still technically scale quadratically, but should be much more readable and manageable now - all that remains in the individual test cases is the specific version flag tweaking we're trying to test.
Closes#3187.
Use ZIP 32 for all Sapling spending keys
The wallet now only stores Sapling extended spending keys, and thus can
only be used with keys generated from an HDSeed via ZIP 32. This means
that all Sapling keys and addresses generated by users can be recovered
as long as they have a backup that includes the seed.
Depends on zcash/librustzcash#29
Closes#3380.
Simon
Jack Grigg
Homu
Eirik Ogilvie-Wigley
Jonas Schnelli
Larry Ruane