commit 1986941c2330c490a940e06013147ef4a579d903
Author: Colin McKechney <cmckechn@nd.edu>
Date:   Tue Apr 25 05:44:08 2023 +0000

    initial commit, authentication and user creation

diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..5ab85ae
--- /dev/null
+++ b/Cargo.lock
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..199866e
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "adv_db"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+chrono = "0.4.24"
+env_logger = "0.10.0"
+log = "0.4.17"
+oracle = "0.5.7"
+rand = "0.8.5"
+sha2 = "0.10.6"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..534b9f8
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,97 @@
+use sha2::{Sha256, Digest};
+use rand::{prelude::Rng, distributions::Alphanumeric };
+use oracle::{Connection, Error};
+use log::{info, warn, error};
+use env_logger::Env;
+
+static SQL_USERNAME: &str = "group09_user";
+static SQL_PASSWORD: &str = "group09_user";
+static SALT_LEN: usize = 16;
+
+fn main() {
+    
+    //init logging system
+    let env = Env::default().filter_or("LOG_LEVEL", "info");
+    env_logger::init_from_env(env);
+
+    //Temporary for testing purposes, should write something to make a random salt
+    let username = "cmckechn";
+    let password = "password";
+
+    //proof of concept tests, create_user should fail in this instance because user was already
+    //created
+    println!("{}",authenticate(username, password).unwrap());
+    create_user("test", "test_create", "test_first", "test_last").unwrap();
+    println!("{}", authenticate("test", "test_create").unwrap());
+}
+
+
+fn authenticate(username: &str, password: &str) -> Result<bool, Error> {
+    
+    info!("Authenticating user: {}", username);
+
+    let conn = Connection::connect(SQL_USERNAME,SQL_PASSWORD, "")?;
+    let mut stmt = conn.statement("select password, salt from student where net_id = :1").build()?;
+    let row = stmt.query_row_as::<(String, String)>(&[&username])?;
+    
+    
+    let true_pword = row.0;
+    let salt = row.1;
+
+    let mut hasher = Sha256::new();
+    hasher.update(password);
+    hasher.update(salt);
+    let hash = hasher.finalize();
+
+    let mut tmp: String = String::new();
+    for value in hash{
+        tmp += &format!("{:x}", value); 
+    }
+    
+    conn.close()?;
+
+
+    if true_pword.eq(&tmp) {
+        info!("User {} successfully authenticated", username);
+        Ok(true)
+    }
+    else{
+        warn!("User {} failed authentication", username);
+        Ok(false)
+    }
+
+}
+
+fn create_user(username: &str, password: &str, first_name: &str, last_name: &str) -> Result<(), Error> {
+
+    info!("Creating user: {}", username); 
+    let conn = Connection::connect(SQL_USERNAME, SQL_PASSWORD, "")?;
+    let mut stmt = conn.statement("insert into student values(:net_id, :first_name, :last_name, :password, :salt)").build()?;
+
+    let salt: String = rand::thread_rng().sample_iter(&Alphanumeric).take(SALT_LEN).map(char::from).collect();
+    let mut hasher = Sha256::new();
+    hasher.update(&password);
+    hasher.update(&salt);
+    let hash = hasher.finalize();
+    
+    let mut hash_string = String::new();
+
+    for value in hash{
+        hash_string += &format!("{:x}", value);
+    }
+
+    match stmt.execute_named(&[("net_id", &username), ("first_name", &first_name), ("last_name", &last_name), ("password", &hash_string), ("salt", &salt)]) {
+        Ok(_) => {
+            info!("User {} successfully created", username); 
+            conn.commit()?;
+        },
+        Err(_) => {
+            warn!("Failed to create user {}", username);
+            conn.rollback()?;
+        }
+    };
+
+    conn.close()?;
+    Ok(())
+
+}