Implement scenario getfile packet and counter stub

.gitignore

@@ -2,5 +2,7 @@ www/tw/
 www/jp/
 
 bin/quests/*.bin
+bin/scenarios/*.bin
+bin/debug/*.bin
 savedata/
 Erupe.exe

network/mhfpacket/msg_mhf_info_scenario_counter.go

@@ -6,7 +6,9 @@ import (
 )
 
 // MsgMhfInfoScenarioCounter represents the MSG_MHF_INFO_SCENARIO_COUNTER
-type MsgMhfInfoScenarioCounter struct{}
+type MsgMhfInfoScenarioCounter struct {
+	AckHandle uint32
+}
 
 // Opcode returns the ID associated with this packet type.
 func (m *MsgMhfInfoScenarioCounter) Opcode() network.PacketID {
@@ -15,7 +17,8 @@ func (m *MsgMhfInfoScenarioCounter) Opcode() network.PacketID {
 
 // Parse parses the packet from binary
 func (m *MsgMhfInfoScenarioCounter) Parse(bf *byteframe.ByteFrame) error {
-	panic("Not implemented")
+	m.AckHandle = bf.ReadUint32()
+	return nil
 }
 
 // Build builds a binary packet from the current data.

network/mhfpacket/msg_sys_get_file.go

@@ -6,10 +6,24 @@ import (
 )
 
 type scenarioFileIdentifer struct {
-	Unk0 uint8
-	Unk1 uint32
-	Unk2 uint8
-	Unk3 uint8
+	CategoryID uint8
+	MainID     uint32
+	ChapterID  uint8
+	/*
+		Flags represent the following bit flags:
+
+		11111111 -> Least significant bit on the right.
+		||||||||
+		|||||||0x1: Chunk0-type, recursive chunks, quest name/description + 0x14 byte unk info
+		||||||0x2:  Chunk1-type, recursive chunks, npc dialog? + 0x2C byte unk info
+		|||||0x4:   UNK NONE FOUND. (Guessing from the following that this might be a chunk2-type)
+		||||0x8:    Chunk0-type, NO RECURSIVE CHUNKS ([0x1] prefixed?), Episode listing
+		|||0x10:    Chunk1-type, NO RECURSIVE CHUNKS, JKR blob, npc dialog?
+		||0x20:     Chunk2-type, NO RECURSIVE CHUNKS, JKR blob, Menu options or quest titles?
+		|0x40:      UNK NONE FOUND
+		0x80:       UNK NONE FOUND
+	*/
+	Flags uint8
 }
 
 // MsgSysGetFile represents the MSG_SYS_GET_FILE
@@ -30,6 +44,11 @@ func (m *MsgSysGetFile) Opcode() network.PacketID {
 func (m *MsgSysGetFile) Parse(bf *byteframe.ByteFrame) error {
 	m.AckHandle = bf.ReadUint32()
 	m.IsScenario = bf.ReadBool()
+	m.FilenameLength = bf.ReadUint8()
+	if m.FilenameLength > 0 {
+		m.Filename = string(bf.ReadBytes(uint(m.FilenameLength)))
+	}
+
 	if m.IsScenario {
 		m.ScenarioIdentifer = scenarioFileIdentifer{
 			bf.ReadUint8(),
@@ -37,9 +56,6 @@ func (m *MsgSysGetFile) Parse(bf *byteframe.ByteFrame) error {
 			bf.ReadUint8(),
 			bf.ReadUint8(),
 		}
-	} else {
-		m.FilenameLength = bf.ReadUint8()
-		m.Filename = string(bf.ReadBytes(uint(m.FilenameLength)))
 	}
 	return nil
 }

server/channelserver/handlers.go

@@ -249,6 +249,12 @@ func handleMsgSysCastedBinary(s *Session, p mhfpacket.MHFPacket) {}
 func handleMsgSysGetFile(s *Session, p mhfpacket.MHFPacket) {
 	pkt := p.(*mhfpacket.MsgSysGetFile)
 
+	// Debug print the request.
+	fmt.Printf("%+v\n", pkt)
+	if pkt.IsScenario {
+		fmt.Printf("%+v\n", pkt.ScenarioIdentifer)
+	}
+
 	if !pkt.IsScenario {
 		// Get quest file.
 		data, err := ioutil.ReadFile(filepath.Join(s.server.erupeConfig.BinPath, fmt.Sprintf("quests/%s.bin", stripNullTerminator(pkt.Filename))))
@@ -258,7 +264,34 @@ func handleMsgSysGetFile(s *Session, p mhfpacket.MHFPacket) {
 
 		doSizedAckResp(s, pkt.AckHandle, data)
 	} else {
-		s.logger.Fatal("scenario getfile not implemented.")
+
+		/*
+			// mhf-fake-client format
+			filename := fmt.Sprintf(
+				"%d_%d_%d_%d",
+				pkt.ScenarioIdentifer.CategoryID,
+				pkt.ScenarioIdentifer.MainID,
+				pkt.ScenarioIdentifer.ChapterID,
+				pkt.ScenarioIdentifer.Flags,
+			)
+		*/
+
+		// Fist's format:
+		filename := fmt.Sprintf(
+			"%d_0_0_0_S%d_T%d_C%d",
+			pkt.ScenarioIdentifer.CategoryID,
+			pkt.ScenarioIdentifer.MainID,
+			pkt.ScenarioIdentifer.Flags, // Fist had as "type" and is the "T%d"
+			pkt.ScenarioIdentifer.ChapterID,
+		)
+
+		// Read the scenario file.
+		data, err := ioutil.ReadFile(filepath.Join(s.server.erupeConfig.BinPath, fmt.Sprintf("scenarios/%s.bin", filename)))
+		if err != nil {
+			panic(err)
+		}
+
+		doSizedAckResp(s, pkt.AckHandle, data)
 	}
 
 }
@@ -1175,7 +1208,58 @@ func handleMsgMhfPaymentAchievement(s *Session, p mhfpacket.MHFPacket) {}
 
 func handleMsgMhfDisplayedAchievement(s *Session, p mhfpacket.MHFPacket) {}
 
-func handleMsgMhfInfoScenarioCounter(s *Session, p mhfpacket.MHFPacket) {}
+func handleMsgMhfInfoScenarioCounter(s *Session, p mhfpacket.MHFPacket) {
+
+	pkt := p.(*mhfpacket.MsgMhfInfoScenarioCounter)
+
+	scenarioCounter := []struct {
+		Unk0 uint32 // Main ID?
+		Unk1 uint8
+		Unk2 uint8
+	}{
+		{
+			Unk0: 0x00000000,
+			Unk1: 1,
+			Unk2: 4,
+		},
+		{
+			Unk0: 0x00000001,
+			Unk1: 1,
+			Unk2: 4,
+		},
+		{
+			Unk0: 0x00000002,
+			Unk1: 1,
+			Unk2: 4,
+		},
+		{
+			Unk0: 0x00000003,
+			Unk1: 1,
+			Unk2: 4,
+		},
+	}
+
+	resp := byteframe.NewByteFrame()
+	resp.WriteUint8(uint8(len(scenarioCounter))) // Entry count
+	for _, entry := range scenarioCounter {
+		resp.WriteUint32(entry.Unk0)
+		resp.WriteUint8(entry.Unk1)
+		resp.WriteUint8(entry.Unk2)
+	}
+
+	doSizedAckResp(s, pkt.AckHandle, resp.Data())
+
+	// DEBUG, DELETE ME!
+	/*
+		data, err := ioutil.ReadFile(filepath.Join(s.server.erupeConfig.BinPath, "debug/info_scenario_counter_resp.bin"))
+		if err != nil {
+			panic(err)
+		}
+
+		doSizedAckResp(s, pkt.AckHandle, data)
+	*/
+
+}
 
 func handleMsgMhfSaveScenarioData(s *Session, p mhfpacket.MHFPacket) {
 	pkt := p.(*mhfpacket.MsgMhfSaveScenarioData)