Relay request and response additions

[tyiu]

Please review this PR on a per-commit basis. Otherwise, it will be difficult to review.

• Reorder relay request and relay response enums to match the listed ordering in the specs for easier maintainability
• Fix RelayResponse to not drop human readable messages for OK messages
• Add CLOSED relay response
• Add AUTH relay request and response

This PR brings RelayRequest and RelayResponse to completion per NIP-01, NIP-42 - Auth, and NIP-45 - Event counts. The implementation was previously incomplete, covering only part of the spec.

Although this PR adds AUTH, there are no functions to actually authenticate on the RelayOperating protocol yet. That will be added as a separate PR.
This issue tracks the AUTH work: #21

[tyiu]

There's something wrong with the CI builds. I'm getting flaky results or they're breaking in a way that's unexpected. It seems that my PR shouldn't affect them, but maybe I'm missing something.

[tyiu]

There's something wrong with the CI builds. I'm getting flaky results or they're breaking in a way that's unexpected. It seems that my PR shouldn't affect them, but maybe I'm missing something.

It's not my PR. I tried the build on a different branch that's basically just the current main branch and it fails in the same way for the Swift 5.7.1 build. Either the tooling or environment has changed.

Run swift build
  swift build
  swift test
  shell: /bin/bash -e {0}
  env:
    TOOLCHAINS: org.swift.571202211011a
error: 'nostr-sdk-ios': Invalid manifest
error: compile command failed due to signal 6 (use -v to see invocation)
/Applications/Xcode_15.0.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/lib/swift/Dispatch.swiftmodule/arm64e-apple-macos.swiftinterface:84:20: error: no type named 'DispatchQueue' in module 'Dispatch'
extension Dispatch.DispatchQueue {
                   ^

[tyiu]

There's something wrong with the CI builds. I'm getting flaky results or they're breaking in a way that's unexpected. It seems that my PR shouldn't affect them, but maybe I'm missing something.

It's not my PR. I tried the build on a different branch that's basically just the current main branch and it fails in the same way for the Swift 5.7.1 build. Either the tooling or environment has changed.

Run swift build
  swift build
  swift test
  shell: /bin/bash -e {0}
  env:
    TOOLCHAINS: org.swift.571202211011a
error: 'nostr-sdk-ios': Invalid manifest
error: compile command failed due to signal 6 (use -v to see invocation)
/Applications/Xcode_15.0.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/lib/swift/Dispatch.swiftmodule/arm64e-apple-macos.swiftinterface:84:20: error: no type named 'DispatchQueue' in module 'Dispatch'
extension Dispatch.DispatchQueue {
                   ^

#152 fixes the build issue.

[bryanmontz]

Thanks, Terry!

[bryanmontz]

Is it possible that the message will have two colons in it?

[tyiu]

Yes, it's possible. Technically the relay can give us whatever it wants and not conform to NIP-01. I wanted to stress test that possibility.