# Title
`v1.2.0-pre0` - Network Robustness, Fog 1.2.0, Apple Silicon/M1 & Mac Catalyst
# Description
Added a way for implementing apps to pass in there own `HttpRequester` which can be useful for network robustness. Subspec `LibMobileCoin` now supports Apple Silicon/M1 and Mac Catalyst. Code changes to support Fog v1.2.0.
#### `pre1` Changes
- Uses the `v1.2.0-pre1` version of `LibMobileCoin` which supports a higher version of `GRPC`.
- Added bridging headers
- Updated Gemfile/Makefile to use the latest `cocoapods` version `1.11.2`
#### Future Work
Fix the `docs` steps in the circleci build process. Will require `jazzy` related fixes and testing on Xcode 11.
# Changes
## Network Robustness
Adds a separate `HTTP` networking architecture. An object conforming to `protocol HttpRequester` can be provided to the `NetworkConfig` object when the `MobileCoinClient` is created. Then the `TransportProtocolOption` can be changed from `grpc` to `http`.
> NOTE: This branch will not run because it depends on changes in other submodules that have not yet been merged.
### `HttpRequester`
Implementing apps/frameworks should provide an object conforming to this protocol. Our `RestApiRequester` wraps around an `HttpRequester` to communicate with with our services using `protobuf`s.
```
Sources/Network/HttpConnection/HttpRequester.swift
```
### Attested & Auth Connection Wrappers
`HTTP` versions of the Auth & Attested wrapper classes. These protocol and their default implementations handle the logic paths needed for authentication/attestation and re-authentication/attestation:
> Can become generic
```
Sources/Network/HttpConnection/ArbitraryHttpConnection.swift
Sources/Network/HttpConnection/AttestedHttpConnection.swift
```
### Networking Protocols
Separate code-paths for `HTTP` versions of the networking protocols:
```
Sources/Network/HttpConnection/HttpCallable/AttestedHttpCallable.swift
Sources/Network/HttpConnection/HttpCallable/AuthHttpCallable.swift
Sources/Network/HttpConnection/HttpCallable/AuthHttpCallableClientWrapper.swift
Sources/Network/HttpConnection/HttpCallable/HttpCallable.swift
```
`HTTP` "interfaces" that closely mimic functionality from `GRPC`. Allows us to re-use more of our existing patterns.
```
Sources/Network/HttpConnection/HTTPInterface/HTTPCallOptions.swift
Sources/Network/HttpConnection/HTTPInterface/HTTPClient.swift
Sources/Network/HttpConnection/HTTPInterface/HTTPClientCall.swift
Sources/Network/HttpConnection/HTTPInterface/HTTPMethod.swift
Sources/Network/HttpConnection/HTTPInterface/HTTPResponse.swift
Sources/Network/HttpConnection/HTTPInterface/HTTPStatus.swift
Sources/Network/HttpConnection/HTTPInterface/HTTPUnaryCall.swift
```
### `HTTP` Connection Implementations
Wrapper classes that interface directly with `protoc-swift` generated `.swift` files for our protobuf models.
```
Sources/Network/HttpConnection/HttpConnection.swift
Sources/Network/HttpConnection/HttpConnections/BlockchainHttpConnection.swift
Sources/Network/HttpConnection/HttpConnections/ConsensusHttpConnection.swift
Sources/Network/HttpConnection/HttpConnections/FogBlockHttpConnection.swift
Sources/Network/HttpConnection/HttpConnections/FogKeyImageHttpConnection.swift
Sources/Network/HttpConnection/HttpConnections/FogMerkleProofHttpConnection.swift
Sources/Network/HttpConnection/HttpConnections/FogReportHttpConnection.swift
Sources/Network/HttpConnection/HttpConnections/FogUntrustedTxOutHttpConnection.swift
Sources/Network/HttpConnection/HttpConnections/FogViewHttpConnection.swift
```
### `HTTP` versions of `protoc-swift` generated models
The GRPC versions of these are generated by `protoc-swift`. The HTTP versions were edited by hand to work with the `HTTP` Connections implementations.
> **This could be automated preferably with a `protoc-swift` plugin template but also `sed`/`VIM` if needed.**
```
Sources/Network/HttpConnection/HttpConnections/Http Proto Generated/attest.http.swift
Sources/Network/HttpConnection/HttpConnections/Http Proto Generated/consensus_client.http.swift
Sources/Network/HttpConnection/HttpConnections/Http Proto Generated/consensus_common.http.swift
Sources/Network/HttpConnection/HttpConnections/Http Proto Generated/ledger.http.swift
Sources/Network/HttpConnection/HttpConnections/Http Proto Generated/report.http.swift
Sources/Network/HttpConnection/HttpConnections/Http Proto Generated/view.http.swift
```
## Fog Updates
The latest version of `fog` changes the name of a protobuf `FogLedger_Block` -> `FogLedger_BlockData`.
### Compressed Commitment
The `TxOut` compressed commitment is no longer sent in the protobuf message because it can be reconstructed with its constituent parts (+ the user's `view_private_key`)
We now reconstruct the commitment in several places whereas before it was being returned from the decoded protobuf message.
Lastly some function signatures into `LibMobileCoin` were updated to adjust to the changes.
## Miscellaneous
New MrEnclave values
Support for Apple Silicon/M1 & Mac Catalyst
## Unit Tests
One unit test was removed. It creates a TxOut and tries to unmask the value with an **incorrect** private view key. The return value should be 'nil' but is noise. It will require a change in the rust code and should be implemented in a future release.
Some objects were re-serialized to match the new TxOut structure.
Credentials are not required for `consensus` so this has been changed in the `NetworkConfig`
Tests can be run with `TransportProtocol == .http` by changing the default value in `NetworkConfig`
* logging changes
* Addressing comments
Adjusted the log level of failure related logs to be "warning", and fixed the sensitivity level of some things to hide sensitive info and show non-sensitive info.
* Adding missed comment things
