From e9a24e515df97cb971fd7e67d2a9e13cab1491b7 Mon Sep 17 00:00:00 2001
From: jake <jake@sharnoth.com>
Date: Fri, 13 Sep 2019 19:21:33 -0700
Subject: [PATCH] param pkt

---
 src/login/character.rs | 76 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 75 insertions(+), 1 deletion(-)

diff --git a/src/login/character.rs b/src/login/character.rs
index 19db09f..be112cf 100644
--- a/src/login/character.rs
+++ b/src/login/character.rs
@@ -1,4 +1,6 @@
 use std::net;
+use std::sync::Arc;
+use std::io::Read;
 
 use rand::{Rng, RngCore};
 use bcrypt::{DEFAULT_COST, hash, verify};
@@ -16,6 +18,7 @@ use elseware::common::network::{PacketNetworkError};
 use elseware::common::client::Client;
 use elseware::common::serverstate::{SendServerPacket, RecvServerPacket, ServerState, OnConnect, ClientId};
 use elseware::common::util::array_to_utf8;
+use elseware::utf8_to_array;
 
 use crate::dataaccess::DataAccess;
 use crate::login::{SharedLoginState, get_login_status};
@@ -36,6 +39,8 @@ pub enum RecvCharacterPacket {
     Checksum(Checksum),
     GuildcardDataRequest(GuildcardDataRequest),
     GuildcardDataChunkRequest(GuildcardDataChunkRequest),
+    ParamDataRequest(ParamDataRequest),
+    ParamDataChunkRequest(ParamDataChunkRequest),
 }
 
 impl RecvServerPacket for RecvCharacterPacket {
@@ -47,6 +52,8 @@ impl RecvServerPacket for RecvCharacterPacket {
             0x1E8 => Ok(RecvCharacterPacket::Checksum(Checksum::from_bytes(data)?)),
             0x3E8 => Ok(RecvCharacterPacket::GuildcardDataRequest(GuildcardDataRequest::from_bytes(data)?)),
             0x3DC => Ok(RecvCharacterPacket::GuildcardDataChunkRequest(GuildcardDataChunkRequest::from_bytes(data)?)),
+            0x4EB => Ok(RecvCharacterPacket::ParamDataRequest(ParamDataRequest::from_bytes(data)?)),
+            0x3EB => Ok(RecvCharacterPacket::ParamDataChunkRequest(ParamDataChunkRequest::from_bytes(data)?)),
             _ => Err(PacketParseError::WrongPacketForServerType)
         }
     }
@@ -62,7 +69,9 @@ pub enum SendCharacterPacket {
     ChecksumAck(ChecksumAck),
     CharacterPreview(CharacterPreview),
     GuildcardDataHeader(GuildcardDataHeader),
-    GuildcardDataChunk(GuildcardDataChunk)
+    GuildcardDataChunk(GuildcardDataChunk),
+    ParamDataHeader(ParamDataHeader),
+    ParamDataChunk(ParamDataChunk),
 }
 
 impl SendServerPacket for SendCharacterPacket {
@@ -76,14 +85,52 @@ impl SendServerPacket for SendCharacterPacket {
             SendCharacterPacket::CharacterPreview(pkt) => pkt.as_bytes(),
             SendCharacterPacket::GuildcardDataHeader(pkt) => pkt.as_bytes(),
             SendCharacterPacket::GuildcardDataChunk(pkt) => pkt.as_bytes(),
+            SendCharacterPacket::ParamDataHeader(pkt) => pkt.as_bytes(),
+            SendCharacterPacket::ParamDataChunk(pkt) => pkt.as_bytes(),
             //SendLoginPacket::RedirectClient(pkt) => pkt.as_bytes(),
         }
     }
 }
 
+
+fn generate_param_data(path: &str) -> (ParamDataHeader, Vec<u8>) {
+    let paths = std::fs::read_dir(path).expect("could not find param/ directory");
+
+    let mut files = Vec::new();
+    let mut buffer = Vec::new();
+    for p in paths {
+        let param = p.unwrap().path();
+        let mut file = std::fs::File::open(&param).unwrap();
+
+        let mut filebuf = Vec::new();
+        let len = file.read_to_end(&mut filebuf).unwrap();
+
+        let mut crc = crc32::Digest::new(crc32::IEEE);
+        crc.write(&filebuf[..]);
+
+        files.push(ParamFile {
+            size: len as u32,
+            checksum: crc.sum32(),
+            offset: buffer.len() as u32,
+            filename: utf8_to_array!(param.file_name().unwrap().to_str().unwrap(), 0x40),
+        });
+
+        buffer.append(&mut filebuf);
+    }
+
+    (ParamDataHeader {
+        files: files
+    }, buffer)
+}
+
+// TODO: rip these client-specific vars into a HashMap<ClientId, ClientState>
 pub struct CharacterServerState<DA: DataAccess> {
     //shared_state: SharedLoginState<DA>,
     data_access: DA,
+    param_header: ParamDataHeader,
+
+    param_index: usize,
+    param_data: Arc<Vec<u8>>,
     user: Option<UserAccount>,
     characters: Option<[Option<Character>; 4]>,
     guildcard_data_buffer: Option<Vec<u8>>,
@@ -92,9 +139,15 @@ pub struct CharacterServerState<DA: DataAccess> {
 
 impl<DA: DataAccess> CharacterServerState<DA> {
     pub fn new(data_access: DA) -> CharacterServerState<DA> {
+        let (param_header, param_data) = generate_param_data("param/");
+
         CharacterServerState {
             //shared_state: shared_state,
             data_access: data_access,
+            param_header: param_header,
+
+            param_index: 0,
+            param_data: Arc::new(param_data),
             user: None,
             characters: None,
             guildcard_data_buffer: None,
@@ -226,6 +279,27 @@ impl<DA: DataAccess> ServerState for CharacterServerState<DA> {
             },
             RecvCharacterPacket::GuildcardDataChunkRequest(request) => {
                 Box::new(self.guildcard_data_chunk(request.chunk, request.again).into_iter().map(move |pkt| (id, pkt)))
+            },
+            RecvCharacterPacket::ParamDataRequest(_request) => {
+                Box::new(vec![SendCharacterPacket::ParamDataHeader(self.param_header.clone())].into_iter().map(move |pkt| (id, pkt)))
+            },
+            RecvCharacterPacket::ParamDataChunkRequest(_request) => {
+                let chunk = self.param_index;
+                self.param_index += 1;
+
+                let start = chunk * 0x6800;
+                let end = std::cmp::min((chunk+1)*0x6800, self.param_data.len());
+
+                let mut data = [0u8; 0x6800];
+                data[..end-start].copy_from_slice(&self.param_data[start..end]);
+
+                Box::new(vec![SendCharacterPacket::ParamDataChunk(
+                    ParamDataChunk {
+                        flag: 0,
+                        chunk: chunk as u32,
+                        data: data,
+                    }
+                )].into_iter().map(move |pkt| (id, pkt)))
             }
         }
     }