Fix compilation error and cleaned up imports

Cargo.lock

@@ -1,13 +1,5 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-[[package]]
-name = "ahash"
-version = "0.2.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "const-random 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "aho-corasick"
 version = "0.7.8"
@@ -73,14 +65,9 @@ dependencies = [
 ]
 
 [[package]]
-name = "async-trait"
+name = "async-task"
-version = "0.1.24"
+version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "proc-macro2 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "atty"
@@ -200,22 +187,6 @@ dependencies = [
  "capnp 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "casbin"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "async-std 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "async-trait 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "emitbrown 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "indexmap 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ip_network 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "rhai 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "ttl_cache 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "cc"
 version = "1.0.52"
@@ -276,29 +247,24 @@ dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "const-random"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "const-random-macro 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "const-random-macro"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "constant_time_eq"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "crossbeam"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-channel 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-deque 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-epoch 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-queue 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.3.9"
@@ -337,6 +303,15 @@ dependencies = [
  "scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "crossbeam-queue"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.6.6"
@@ -362,9 +337,9 @@ version = "0.1.0"
 dependencies = [
  "async-std 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "capnp 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "capnp-futures 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "capnp-rpc 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "capnpc 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "casbin 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-signals 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -375,6 +350,7 @@ dependencies = [
  "slog 2.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "slog-async 2.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slog-term 2.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smol 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "uuid 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -404,14 +380,6 @@ name = "discard"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "emitbrown"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "hashbrown 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "env_logger"
 version = "0.7.1"
@@ -572,15 +540,6 @@ dependencies = [
  "bindgen 0.53.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "hashbrown"
-version = "0.6.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "ahash 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "hermit-abi"
 version = "0.1.6"
@@ -597,14 +556,6 @@ dependencies = [
  "quick-error 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "indexmap"
-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "iovec"
 version = "0.1.4"
@@ -613,11 +564,6 @@ dependencies = [
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "ip_network"
-version = "0.3.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "kernel32-sys"
 version = "0.2.2"
@@ -659,11 +605,6 @@ dependencies = [
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 ]
 
-[[package]]
-name = "linked-hash-map"
-version = "0.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "lock_api"
 version = "0.3.3"
@@ -747,6 +688,18 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "nix"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "nom"
 version = "5.1.1"
@@ -826,6 +779,15 @@ name = "pin-utils"
 version = "0.1.0-alpha.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "piper"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "crossbeam-utils 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.6"
@@ -935,11 +897,6 @@ name = "regex-syntax"
 version = "0.6.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "rhai"
-version = "0.9.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "rsasl"
 version = "0.1.0"
@@ -973,6 +930,11 @@ dependencies = [
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "scoped-tls-hkt"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "scopeguard"
 version = "1.0.0"
@@ -1076,6 +1038,34 @@ dependencies = [
  "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "smol"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "async-task 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nix 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "once_cell 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "piper 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scoped-tls-hkt 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "socket2 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wepoll-binding 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "socket2"
+version = "0.3.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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 version = "0.8.0"
@@ -1193,14 +1183,6 @@ dependencies = [
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 ]
 
-[[package]]
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-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
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@@ -1230,11 +1212,33 @@ name = "version_check"
 version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "void"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "wepoll-binding"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wepoll-sys 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "wepoll-sys"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.52 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "which"
 version = "3.1.1"
@@ -1290,7 +1294,6 @@ dependencies = [
 ]
 
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@@ -1298,7 +1301,7 @@ dependencies = [
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@@ -1313,7 +1316,6 @@ dependencies = [
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@@ -1321,19 +1323,18 @@ dependencies = [
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 "checksum discard 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "212d0f5754cb6769937f4501cc0e67f4f4483c8d2c3e1e922ee9edbe4ab4c7c0"
-"checksum emitbrown 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "72465c5bd10dc52fe4c5c24875780b66d7c17f170f3c1f411b5d4abe2f1e286f"
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@@ -1353,19 +1354,15 @@ dependencies = [
 "checksum getrandom 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
 "checksum glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 "checksum gsasl-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9a23468198e86f09c8da7ae40ba7844c28cc2fa82f5f1ce7d309d51c8132bc33"
-"checksum hashbrown 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8e6073d0ca812575946eb5f35ff68dbe519907b25c42530389ff946dc84c6ead"
 "checksum hermit-abi 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "eff2656d88f158ce120947499e971d743c05dbcbed62e5bd2f38f1698bbc3772"
 "checksum humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
-"checksum indexmap 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "076f042c5b7b98f31d205f1249267e12a6518c1481e9dae9764af19b707d2292"
 "checksum iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b2b3ea6ff95e175473f8ffe6a7eb7c00d054240321b84c57051175fe3c1e075e"
-"checksum ip_network 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "2ee15951c035f79eddbef745611ec962f63f4558f1dadf98ab723cc603487c6f"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum kv-log-macro 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c54d9f465d530a752e6ebdc217e081a7a614b48cb200f6f0aee21ba6bc9aabb"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 "checksum lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 "checksum libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)" = "d515b1f41455adea1313a4a2ac8a8a477634fbae63cc6100e3aebb207ce61558"
 "checksum libloading 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f2b111a074963af1d37a139918ac6d49ad1d0d5e47f72fd55388619691a7d753"
-"checksum linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ae91b68aebc4ddb91978b11a1b02ddd8602a05ec19002801c5666000e05e0f83"
 "checksum lock_api 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "79b2de95ecb4691949fea4716ca53cdbcfccb2c612e19644a8bad05edcf9f47b"
 "checksum log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
 "checksum maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
@@ -1375,6 +1372,7 @@ dependencies = [
 "checksum mio-uds 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)" = "966257a94e196b11bb43aca423754d87429960a768de9414f3691d6957abf125"
 "checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
 "checksum net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
+"checksum nix 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)" = "50e4785f2c3b7589a0d0c1dd60285e1188adac4006e8abd6dd578e1567027363"
 "checksum nom 5.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b471253da97532da4b61552249c521e01e736071f71c1a4f7ebbfbf0a06aad6"
 "checksum num-integer 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "3f6ea62e9d81a77cd3ee9a2a5b9b609447857f3d358704331e4ef39eb247fcba"
 "checksum num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "c62be47e61d1842b9170f0fdeec8eba98e60e90e5446449a0545e5152acd7096"
@@ -1385,6 +1383,7 @@ dependencies = [
 "checksum peeking_take_while 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
 "checksum pin-project-lite 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "237844750cfbb86f67afe27eee600dfbbcb6188d734139b534cbfbf4f96792ae"
 "checksum pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)" = "5894c618ce612a3fa23881b152b608bafb8c56cfc22f434a3ba3120b40f7b587"
+"checksum piper 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c6d62a6ea407d82215154475927b288219b79c8670e3371166210328e758ebaa"
 "checksum ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
 "checksum proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)" = "ecd45702f76d6d3c75a80564378ae228a85f0b59d2f3ed43c91b4a69eb2ebfc5"
 "checksum proc-macro-nested 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "369a6ed065f249a159e06c45752c780bda2fb53c995718f9e484d08daa9eb42e"
@@ -1399,11 +1398,11 @@ dependencies = [
 "checksum redox_users 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "09b23093265f8d200fa7b4c2c76297f47e681c655f6f1285a8780d6a022f7431"
 "checksum regex 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "322cf97724bea3ee221b78fe25ac9c46114ebb51747ad5babd51a2fc6a8235a8"
 "checksum regex-syntax 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)" = "b28dfe3fe9badec5dbf0a79a9cccad2cfc2ab5484bdb3e44cbd1ae8b3ba2be06"
-"checksum rhai 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b1cadbefcdb49a5ea2ea53699ce6b60f28c8a711247ce449ca99e687b0a5d6de"
 "checksum rsasl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f04a6a443b95750c7125df4b051353dc6aa15bb8762c55ff5276370c698e2cdf"
 "checksum rust-argon2 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2bc8af4bda8e1ff4932523b94d3dd20ee30a87232323eda55903ffd71d2fb017"
 "checksum rustc-hash 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 "checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
+"checksum scoped-tls-hkt 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c2e9d7eaddb227e8fbaaa71136ae0e1e913ca159b86c7da82f3e8f0044ad3a63"
 "checksum scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b42e15e59b18a828bbf5c58ea01debb36b9b096346de35d941dcb89009f24a0d"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
@@ -1417,6 +1416,8 @@ dependencies = [
 "checksum slog-async 2.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "78ca925b180da88ccc595cbe4a3d378d79cb49fe5906c2cbc2488eaf700913ee"
 "checksum slog-term 2.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "124501187c410b6a46fe8a47a48435ae462fae4e02d03c558d358f40b17308cb"
 "checksum smallvec 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)" = "f7b0758c52e15a8b5e3691eae6cc559f08eee9406e548a4477ba4e67770a82b6"
+"checksum smol 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "f92bf48a84965d40061dbd596c17cfe0bff734b5aaf94d9408b0b3e382f7c06e"
+"checksum socket2 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)" = "03088793f677dce356f3ccc2edb1b314ad191ab702a5de3faf49304f7e104918"
 "checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 "checksum syn 1.0.14 (registry+https://github.com/rust-lang/crates.io-index)" = "af6f3550d8dff9ef7dc34d384ac6f107e5d31c8f57d9f28e0081503f547ac8f5"
 "checksum take_mut 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f764005d11ee5f36500a149ace24e00e3da98b0158b3e2d53a7495660d3f4d60"
@@ -1430,13 +1431,15 @@ dependencies = [
 "checksum tokio-reactor 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "09bc590ec4ba8ba87652da2068d150dcada2cfa2e07faae270a5e0409aa51351"
 "checksum tokio-sync 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "edfe50152bc8164fcc456dab7891fa9bf8beaf01c5ee7e1dd43a397c3cf87dee"
 "checksum toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
-"checksum ttl_cache 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4189890526f0168710b6ee65ceaedf1460c48a14318ceec933cb26baa492096a"
 "checksum unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 "checksum uuid 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9fde2f6a4bea1d6e007c4ad38c6839fa71cbb63b6dbf5b595aa38dc9b1093c11"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 "checksum version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce"
+"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 "checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
+"checksum wepoll-binding 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7511014d92edaa2cba607fd6dc62974915bebc3e16f91f911a4bb240b4a3a68c"
+"checksum wepoll-sys 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9082a777aed991f6769e2b654aa0cb29f1c3d615daf009829b07b66c7aff6a24"
 "checksum which 3.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d011071ae14a2f6671d0b74080ae0cd8ebf3a6f8c9589a2cd45f23126fe29724"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"

src/api.rs

@@ -5,12 +5,59 @@ pub mod gen {
 }
 
 use async_std::net::TcpStream;
-use futures::io::{AsyncRead, AsyncWrite};
+use futures_util::FutureExt;
 
 use slog::Logger;
 
 use crate::error::Result;
 
+use capnp::capability::Promise;
+use capnp::Error;
+use capnp_rpc::RpcSystem;
+use capnp_rpc::twoparty::VatNetwork;
+use capnp_rpc::rpc_twoparty_capnp::Side;
+
 pub async fn handle_connection(log: Logger, socket: TcpStream) -> Result<()> {
-    unimplemented!()
+    let client = DifAPI {};
+    let api = gen::diflouroborane::ToClient::new(client).into_client::<capnp_rpc::Server>();
+
+    let mut message = capnp::message::Builder::new_default();
+    let mut outer = message.init_root::<crate::connection::gen::message::Builder>();
+    outer.set_api(api.clone());
+
+    let network = VatNetwork::new(socket.clone(), socket, Side::Server, Default::default());
+    let rpc = RpcSystem::new(Box::new(network), Some(api.client)).map(|_| ());
+
+    rpc.await;
+
+    Ok(())
+}
+
+pub struct DifAPI;
+
+impl gen::diflouroborane::Server for DifAPI {
+    fn machines(&mut self,
+        _params: gen::diflouroborane::MachinesParams,
+        mut results: gen::diflouroborane::MachinesResults)
+        -> Promise<(), Error>
+    {
+        let mut b = results.get();
+        let mach = gen::machines::ToClient::new(MachinesAPI).into_client::<capnp_rpc::Server>();
+        b.set_mach(mach);
+        Promise::ok(())
+    }
+}
+
+pub struct MachinesAPI;
+
+impl gen::machines::Server for MachinesAPI {
+    fn list(&mut self,
+        _params: gen::machines::ListParams,
+        mut results: gen::machines::ListResults)
+        -> Promise<(), Error>
+    {
+        let mut l = results.get();
+        l.init_machines(0);
+        Promise::ok(())
+    }
 }

src/auth.rs

@@ -5,7 +5,7 @@
 
 use slog::Logger;
 
-use rsasl::{SASL, Property, Step, Session, ReturnCode};
+use rsasl::{SASL, Property, Session, ReturnCode};
 use rsasl::sys::{Gsasl, Gsasl_session};
 
 use crate::error::Result;
@@ -20,14 +20,27 @@ extern "C" fn callback(ctx: *mut Gsasl, sctx: *mut Gsasl_session, prop: Property
     let mut session = Session::from_ptr(sctx);
 
     let rc = match prop {
-        _ => { ReturnCode::GSASL_NO_CALLBACK }
+        Property::GSASL_VALIDATE_SIMPLE => {
+            let authid = session.get_property_fast(Property::GSASL_AUTHID).to_string_lossy();
+            let pass = session.get_property_fast(Property::GSASL_PASSWORD).to_string_lossy();
+
+            if authid == "test" && pass == "secret" {
+                ReturnCode::GSASL_OK
+            } else {
+                ReturnCode::GSASL_AUTHENTICATION_ERROR
+            }
+        }
+        p => {
+            println!("Callback called with property {:?}", p);
+            ReturnCode::GSASL_NO_CALLBACK 
+        }
     };
 
     rc as i32
 }
 
 pub struct Auth {
-    ctx: SASL,
+    pub ctx: SASL,
 }
 
 impl Auth {

src/connection.rs

@@ -1,23 +1,23 @@
 use slog::Logger;
 
 use async_std::net::TcpStream;
-use futures::io::AsyncWriteExt;
 
 use crate::error::Result;
+use crate::auth;
+use crate::api;
 
 pub mod gen {
     include!(concat!(env!("OUT_DIR"), "/schema/connection_capnp.rs"));
 }
 
-
 pub async fn handle_connection(log: Logger, mut stream: TcpStream) -> Result<()> {
     let host = "localhost";
     let program = "Difluoroborane-0.1.0";
     let version = (0u32,1u32);
 
 
-    {
     let receive_options = capnp::message::ReaderOptions::default();
+    {
         let message = capnp_futures::serialize::read_message(&mut stream, receive_options).await.unwrap().unwrap();
         let m = message.get_root::<gen::message::Reader>().unwrap();
 
@@ -49,8 +49,94 @@ pub async fn handle_connection(log: Logger, mut stream: TcpStream) -> Result<()>
 
         capnp_futures::serialize::write_message(&mut stream, message).await?;
     }
+    {
+        let mut message = capnp::message::Builder::new_default();
+        let outer = message.init_root::<gen::message::Builder>();
+        let mut mechs = outer.init_auth().init_mechanisms(1);
+        mechs.set(0, "PLAIN");
 
-    stream.flush().await?;
+        capnp_futures::serialize::write_message(&mut stream, message).await?;
+    }
+
+    {
+        let message = capnp_futures::serialize::read_message(&mut stream, receive_options).await.unwrap().unwrap();
+        let m = message.get_root::<gen::message::Reader>().unwrap();
+
+        let mut auth_success = false;
+
+        match m.which() {
+            Ok(gen::message::Which::Auth(Ok(r))) => {
+                if let Ok(w) = r.which() {
+                    use crate::auth_capnp::auth_message::*;
+                    match w {
+                        Request(Ok(r)) => {
+                            let m = r.get_mechanism().unwrap();
+                            println!("Client wants to AUTH using {:?}",
+                                m);
+                            let cm = std::ffi::CString::new(m).unwrap();
+                            let mut sasl = auth::Auth::new();
+                            let mut sess = sasl.ctx.server_start(&cm).unwrap();
+
+                            use crate::auth_capnp::request::initial_response::*;
+                            match r.get_initial_response().which() {
+                                Ok(Initial(Ok(r))) => {
+                                    debug!(log, "Client Auth with initial data");
+                                    let mut message = capnp::message::Builder::new_default();
+                                    let mut outer = message.init_root::<gen::message::Builder>().init_auth();
+
+                                    match sess.step(r) {
+                                        Ok(rsasl::Step::Done(b)) => {
+                                            auth_success = true;
+                                            debug!(log, "Authentication successful");
+                                            let mut outcome= outer.init_outcome();
+
+                                            outcome.set_result(auth::gen::outcome::Result::Successful);
+                                            if !b.is_empty() {
+                                                let mut add_data = outcome.init_additional_data();
+                                                add_data.set_additional(&b);
+                                            }
+                                        },
+                                        Ok(rsasl::Step::NeedsMore(b)) => {
+                                            debug!(log, "Authentication needs more data");
+                                            outer.set_response(&b);
+                                        }
+                                        Err(e) => {
+                                            warn!(log, "Authentication error: {}", e);
+                                            let mut outcome = outer.init_outcome();
+
+                                            // TODO: Distinguish errors
+                                            outcome.set_result(auth::gen::outcome::Result::Failed);
+                                            outcome.set_action(auth::gen::outcome::Action::Retry);
+                                            outcome.set_help_text(&format!("{}", e));
+                                        }
+                                    }
+
+                                    capnp_futures::serialize::write_message(&mut stream, message).await?;
+                                }
+                                _ => {
+                                }
+                            }
+                        },
+                        _ => {
+                        }
+                    }
+                } else {
+                    println!("Got unexpected message");
+                }
+            },
+            Ok(_) => {
+                println!("Got unexpected message");
+            }
+            Err(e) => {
+                println!("Got error {:?}", e);
+            }
+        }
+
+        if auth_success {
+            info!(log, "Handing off to API connection handler");
+            api::handle_connection(log, stream).await;
+        }
+    }
 
     Ok(())
 }

src/machine.rs

@@ -1,6 +1,5 @@
 use std::collections::HashMap;
 use std::fs::File;
-use std::path::Path;
 use std::io::{Read, Write};
 
 use slog::Logger;
@@ -11,7 +10,6 @@ use toml;
 use crate::error::Result;
 use crate::config::Config;
 
-use std::rc::Rc;
 use async_std::sync::{Arc, RwLock};
 
 use capnp::Error;

src/main.rs

@@ -22,18 +22,14 @@ use futures::prelude::*;
 use futures::executor::{LocalPool, ThreadPool};
 use futures::compat::Stream01CompatExt;
 use futures::join;
-use futures::task::{SpawnExt, LocalSpawn};
+use futures::task::LocalSpawn;
 
-use capnp_rpc::twoparty::{VatNetwork, VatId};
+use async_std::net::TcpListener;
-use capnp_rpc::rpc_twoparty_capnp::Side;
-
-use async_std::net::{TcpListener, TcpStream};
 
 use std::io;
 use std::io::Write;
 use std::path::PathBuf;
 use std::str::FromStr;
-use std::mem::drop;
 
 use std::sync::Arc;