Microsoft Authentication (#29)

* a

* try to do more work on auth signing (untested)

* well auth works when i remove the d= so

* auth stuff

* sessionserver stuff

* add auth in azalea-protocol/client

* caching*

refreshing microsoft auth tokens isn't implemented yet, also i haven't tested it

* how did i not notice that i had the code duplicated

* fix cache

* add refreshing msa token

* replace some printlns with log::trace

* auth works!

* Update main.rs

* fix clippy warnings

1 files changed, 34 insertions, 0 deletions

diff --git a/azalea-client/src/get_mc_dir.rs b/azalea-client/src/get_mc_dir.rs
new file mode 100644
index 00000000..abc5b3c8
--- /dev/null
+++ b/azalea-client/src/get_mc_dir.rs
@@ -0,0 +1,34 @@
+//! Find out where the user's .minecraft directory is.
+//!
+//! Used for the auth cache.
+
+use std::path::PathBuf;
+
+/// Return the location of the user's .minecraft directory.
+///
+/// Windows: `%appdata%\.minecraft`\
+/// Mac: `$HOME/Library/Application Support/minecraft`\
+/// Linux: `$HOME/.minecraft`
+///
+/// Anywhere else it'll return None.
+pub fn minecraft_dir() -> Option<PathBuf> {
+    #[cfg(target_os = "windows")]
+    {
+        let appdata = std::env::var("APPDATA").ok()?;
+        Some(PathBuf::from(appdata).join(".minecraft"))
+    }
+    #[cfg(target_os = "macos")]
+    {
+        let home = std::env::var("HOME").ok()?;
+        Some(PathBuf::from(home).join("Library/Application Support/minecraft"))
+    }
+    #[cfg(target_os = "linux")]
+    {
+        let home = std::env::var("HOME").ok()?;
+        Some(PathBuf::from(home).join(".minecraft"))
+    }
+    #[cfg(not(any(target_os = "windows", target_os = "macos", target_os = "linux")))]
+    {
+        None
+    }
+}