Enable premium, add custom avatar saving support to complete #10

rc_core/src/persist/user/intercom.rs

@@ -0,0 +1,28 @@
+#[async_trait::async_trait]
+impl super::IntercomUser for super::account_json::UserData {
+    async fn save_custom_avatar(&self, image: Vec<u8>) -> Result<(), polariton_server::operations::SimpleOpError> {
+        // seems to always be jpg
+        let token =  generate_token(self.account.public_id.as_bytes(), &self.secret);
+        let auth_header_val = format!("Internal {}", token);
+        let url = format!("{}/customavatar/Live/{}", self.cdn, self.account.public_id);
+        if let Err(e) = reqwest::Client::new().post(url)
+            .header("Authorization", auth_header_val)
+            .body(image)
+            .send()
+            .await {
+            log::error!("Failed to update custom avatar for {} ({}): {}", self.account.public_id, self.account.id, e);
+            return Err((crate::data::error_codes::WebServicesError::UnexpectedError as i16).into());
+        }
+        Ok(())
+    }
+}
+
+pub fn generate_token(salt: &[u8], key: &[u8]) -> String {
+    use sha2::{Digest, Sha512};
+    let mut hasher = Sha512::new();
+    hasher.update(salt);
+    hasher.update(key);
+    let token_bytes = hasher.finalize();
+    hex::encode(&token_bytes[..])
+}
+