Add Signal protobuf files and compile them to Rust.

It would be cleaner to yield the compiled files OUT_DIR, but that gets
ugly very fast because of
rust-lang/rust#48250.

libsignal-service/.gitignore

@@ -0,0 +1 @@
+src/proto/*.rs

libsignal-service/Cargo.toml

@@ -12,7 +12,13 @@ failure = "0.1.5"
 async-trait = "0.1.30"
 url = "2.1.1"
 thiserror = "1.0"
+serde = {version = "1.0", features=["derive"]}
+serde_json = "1.0"
+prost = "0.6"
 
 [dev-dependencies]
 structopt = "0.2.17"
 tokio = { version = "0.2", features=["macros"] }
+
+[build-dependencies]
+prost-build = "0.6"

libsignal-service/build.rs

@@ -0,0 +1,25 @@
+use std::path::Path;
+
+fn main() {
+ let protobuf = Path::new("protobuf").to_owned();
+
+ let input: Vec<_> = protobuf
+ .read_dir()
+ .expect("protobuf directory")
+ .filter_map(|entry| {
+ let entry = entry.expect("readable protobuf directory");
+ let path = entry.path();
+ if Some("proto")
+ == path.extension().and_then(std::ffi::OsStr::to_str)
+ {
+ assert!(path.is_file());
+ println!("cargo:rerun-if-changed={}", path.to_str().unwrap());
+ Some(path)
+ } else {
+ None
+ }
+ })
+ .collect();
+
+ prost_build::compile_protos(&input, &[protobuf]).unwrap();
+}

libsignal-service/protobuf/Provisioning.proto

@@ -0,0 +1,36 @@
+/**
+ * Copyright (C) 2014-2016 Open Whisper Systems
+ *
+ * Licensed according to the LICENSE file in this repository.
+ */
+syntax = "proto2";
+
+package signalservice;
+
+option java_package = "org.whispersystems.signalservice.internal.push";
+option java_outer_classname = "ProvisioningProtos";
+
+message ProvisionEnvelope {
+ optional bytes publicKey = 1;
+ optional bytes body = 2; // Encrypted ProvisionMessage
+}
+
+message ProvisionMessage {
+ optional bytes identityKeyPublic = 1;
+ optional bytes identityKeyPrivate = 2;
+ optional string number = 3;
+ optional string uuid = 8;
+ optional string provisioningCode = 4;
+ optional string userAgent = 5;
+ optional bytes profileKey = 6;
+ optional bool readReceipts = 7;
+ optional uint32 provisioningVersion = 9;
+}
+
+enum ProvisioningVersion {
+ option allow_alias = true;
+
+ INITIAL = 0;
+ TABLET_SUPPORT = 1;
+ CURRENT = 1;
+}