From 5f393de34bf424b303dc33167904efafd4c0c453 Mon Sep 17 00:00:00 2001
From: Jedrzej Stuczynski <jedrzej.stuczynski@gmail.com>
Date: Wed, 5 Feb 2020 12:08:21 +0000
Subject: [PATCH] Provider pathfinder (identical to mixnode's)

---
 sfw-provider/src/config/persistance/mod.rs    |  1 +
 .../src/config/persistance/pathfinder.rs      | 56 +++++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 sfw-provider/src/config/persistance/mod.rs
 create mode 100644 sfw-provider/src/config/persistance/pathfinder.rs

diff --git a/sfw-provider/src/config/persistance/mod.rs b/sfw-provider/src/config/persistance/mod.rs
new file mode 100644
index 0000000000..5692e9bc8b
--- /dev/null
+++ b/sfw-provider/src/config/persistance/mod.rs
@@ -0,0 +1 @@
+pub mod pathfinder;
diff --git a/sfw-provider/src/config/persistance/pathfinder.rs b/sfw-provider/src/config/persistance/pathfinder.rs
new file mode 100644
index 0000000000..fd74b03c04
--- /dev/null
+++ b/sfw-provider/src/config/persistance/pathfinder.rs
@@ -0,0 +1,56 @@
+use crate::config::Config;
+use pemstore::pathfinder::PathFinder;
+use std::path::PathBuf;
+
+#[derive(Debug)]
+pub struct ProviderPathfinder {
+    pub config_dir: PathBuf,
+    pub private_sphinx_key: PathBuf,
+    pub public_sphinx_key: PathBuf,
+}
+
+impl ProviderPathfinder {
+    pub fn new(id: String) -> Self {
+        let os_config_dir = dirs::config_dir().unwrap(); // grabs the OS default config dir
+        let config_dir = os_config_dir.join("nym").join("mixnodes").join(id);
+        let private_sphinx_key = config_dir.join("private.pem");
+        let public_sphinx_key = config_dir.join("public.pem");
+        ProviderPathfinder {
+            config_dir,
+            private_sphinx_key,
+            public_sphinx_key,
+        }
+    }
+
+    pub fn new_from_config(config: &Config) -> Self {
+        ProviderPathfinder {
+            config_dir: config.get_config_file_save_location(),
+            private_sphinx_key: config.get_private_sphinx_key_file(),
+            public_sphinx_key: config.get_public_sphinx_key_file(),
+        }
+    }
+}
+
+impl PathFinder for ProviderPathfinder {
+    fn config_dir(&self) -> PathBuf {
+        self.config_dir.clone()
+    }
+
+    fn private_identity_key(&self) -> PathBuf {
+        // TEMPORARILY USE SAME KEYS AS ENCRYPTION
+        self.private_sphinx_key.clone()
+    }
+
+    fn public_identity_key(&self) -> PathBuf {
+        // TEMPORARILY USE SAME KEYS AS ENCRYPTION
+        self.public_sphinx_key.clone()
+    }
+
+    fn private_encryption_key(&self) -> Option<PathBuf> {
+        Some(self.private_sphinx_key.clone())
+    }
+
+    fn public_encryption_key(&self) -> Option<PathBuf> {
+        Some(self.public_sphinx_key.clone())
+    }
+}