Add some ground work for #1

sqlx-core/src/executor.rs

@@ -48,8 +48,8 @@ pub trait Executor {
                     } else {
                         Ok(Some(val))
                     }
-                },
-                None => Ok(None)
+                }
+                None => Ok(None),
             }
         })
     }

sqlx-core/src/mysql/connection.rs

@@ -151,14 +151,6 @@ impl MySqlConnection {
         let handshake_packet = self_.receive().await?;
         let handshake = Handshake::decode(handshake_packet)?;
 
-        // TODO: Capabilities::SECURE_CONNECTION
-        // TODO: Capabilities::CONNECT_ATTRS
-        // TODO: Capabilities::PLUGIN_AUTH
-        // TODO: Capabilities::PLUGIN_AUTH_LENENC_CLIENT_DATA
-        // TODO: Capabilities::TRANSACTIONS
-        // TODO: Capabilities::CLIENT_DEPRECATE_EOF
-        // TODO: Capabilities::COMPRESS
-        // TODO: Capabilities::ZSTD_COMPRESSION_ALGORITHM
         let client_capabilities = Capabilities::PROTOCOL_41
             | Capabilities::IGNORE_SPACE
             | Capabilities::FOUND_ROWS
@@ -176,6 +168,8 @@ impl MySqlConnection {
             username: url.username().unwrap_or("root"),
             // TODO: Remove the panic!
             database: url.database().expect("required database"),
+            auth_plugin_name: handshake.auth_plugin_name.as_deref(),
+            auth_response: None,
         });
 
         self_.stream.flush().await?;

sqlx-core/src/mysql/executor.rs

@@ -8,9 +8,8 @@ use crate::describe::{Column, Describe};
 use crate::executor::Executor;
 use crate::mysql::error::MySqlError;
 use crate::mysql::protocol::{
-    Capabilities, ColumnCount, ColumnDefinition, ComQuery, ComStmtExecute,
-    ComStmtPrepare, ComStmtPrepareOk, Cursor, Decode, EofPacket, ErrPacket, OkPacket, Row,
-    Type,
+    Capabilities, ColumnCount, ColumnDefinition, ComQuery, ComStmtExecute, ComStmtPrepare,
+    ComStmtPrepareOk, Cursor, Decode, EofPacket, ErrPacket, OkPacket, Row, Type,
 };
 use crate::mysql::{MySql, MySqlArguments, MySqlConnection, MySqlRow};
 

sqlx-core/src/mysql/protocol/handshake.rs

@@ -105,6 +105,55 @@ mod tests {
     use super::{Capabilities, Decode, Handshake, Status};
 
     const HANDSHAKE_MARIA_DB_10_4_7: &[u8] = b"\n5.5.5-10.4.7-MariaDB-1:10.4.7+maria~bionic\x00\x0b\x00\x00\x00t6L\\j\"dS\x00\xfe\xf7\x08\x02\x00\xff\x81\x15\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00U14Oph9\"<H5n\x00mysql_native_password\x00";
+    const HANDSHAKE_MYSQL_8_0_18: &[u8] = b"\n8.0.18\x00\x19\x00\x00\x00\x114aB0c\x06g\x00\xff\xff\xff\x02\x00\xff\xc7\x15\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00tL\x03s\x0f[4\rl4. \x00caching_sha2_password\x00";
+
+    #[test]
+    fn it_decodes_handshake_mysql_8_0_18() {
+        let mut p = Handshake::decode(HANDSHAKE_MYSQL_8_0_18).unwrap();
+
+        assert_eq!(p.protocol_version, 10);
+
+        p.server_capabilities.toggle(
+            Capabilities::MYSQL
+                | Capabilities::FOUND_ROWS
+                | Capabilities::LONG_FLAG
+                | Capabilities::CONNECT_WITH_DB
+                | Capabilities::NO_SCHEMA
+                | Capabilities::COMPRESS
+                | Capabilities::ODBC
+                | Capabilities::LOCAL_FILES
+                | Capabilities::IGNORE_SPACE
+                | Capabilities::PROTOCOL_41
+                | Capabilities::INTERACTIVE
+                | Capabilities::SSL
+                | Capabilities::TRANSACTIONS
+                | Capabilities::SECURE_CONNECTION
+                | Capabilities::MULTI_STATEMENTS
+                | Capabilities::MULTI_RESULTS
+                | Capabilities::PS_MULTI_RESULTS
+                | Capabilities::PLUGIN_AUTH
+                | Capabilities::CONNECT_ATTRS
+                | Capabilities::PLUGIN_AUTH_LENENC_DATA
+                | Capabilities::CAN_HANDLE_EXPIRED_PASSWORDS
+                | Capabilities::SESSION_TRACK
+                | Capabilities::DEPRECATE_EOF
+                | Capabilities::ZSTD_COMPRESSION_ALGORITHM
+                | Capabilities::SSL_VERIFY_SERVER_CERT
+                | Capabilities::OPTIONAL_RESULTSET_METADATA
+                | Capabilities::REMEMBER_OPTIONS,
+        );
+
+        assert!(p.server_capabilities.is_empty());
+
+        assert_eq!(p.server_default_collation, 255);
+        assert!(p.status.contains(Status::SERVER_STATUS_AUTOCOMMIT));
+        assert_eq!(p.auth_plugin_name.as_deref(), Some("caching_sha2_password"));
+
+        assert_eq!(
+            &*p.auth_plugin_data,
+            &[17, 52, 97, 66, 48, 99, 6, 103, 116, 76, 3, 115, 15, 91, 52, 13, 108, 52, 46, 32,]
+        );
+    }
 
     #[test]
     fn it_decodes_handshake_mariadb_10_4_7() {

sqlx-core/src/mysql/protocol/handshake_response.rs

@@ -12,6 +12,8 @@ pub struct HandshakeResponse<'a> {
     pub client_collation: u8,
     pub username: &'a str,
     pub database: &'a str,
+    pub auth_plugin_name: Option<&'a str>,
+    pub auth_response: Option<&'a str>,
 }
 
 impl Encode for HandshakeResponse<'_> {
@@ -41,17 +43,25 @@ impl Encode for HandshakeResponse<'_> {
 
         if capabilities.contains(Capabilities::PLUGIN_AUTH_LENENC_DATA) {
             // auth_response : string<lenenc>
-            buf.put_str_lenenc::<LittleEndian>("");
+            buf.put_str_lenenc::<LittleEndian>(self.auth_response.unwrap_or_default());
         } else {
+            let auth_response = self.auth_response.unwrap_or_default();
+
             // auth_response_length : int<1>
-            buf.put_u8(0);
+            buf.put_u8(auth_response.len() as u8);
 
             // auth_response : string<{auth_response_length}>
+            buf.put_str(auth_response);
         }
 
         if capabilities.contains(Capabilities::CONNECT_WITH_DB) {
             // database : string<NUL>
             buf.put_str_nul(self.database);
         }
+
+        if capabilities.contains(Capabilities::PLUGIN_AUTH) {
+            // client_plugin_name : string<NUL>
+            buf.put_str_nul(self.auth_plugin_name.unwrap_or_default());
+        }
     }
 }