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docs/md/development/dump_data.md
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@ -4,34 +4,32 @@ By Senko-san, 20/11/2020
## Preface
This guide covers everything you need to know to dump all the data you need from Escape From Tarkov.
It is highly recommended that you read the guide at least once before executing what's written here.
For dumping server data, see 1-3.
For dumping asset data, see 4.
This guide covers everything you need to know to dump all the data you need from Escape From Tarkov.\
It is highly recommended that you read the guide at least once before executing what's written here.\
For dumping server data, see 1-3.\
For dumping asset data, see 4.
## Theory
The game uses HTTP-secured (TLS 1.2) protocol to obtain data (mostly not related to a match) from the server.
While the game's security is lacking, it does block conventional tools for packet capturing.
Of course, we cannot just simply run with altered assembly either, because the launcher does an integrity check.
The game however does not check for integrity.
The game uses HTTP-secured (TLS 1.2) protocol to obtain data (mostly not related to a match) from the server.
While the game's security is lacking, it does block conventional tools for packet capturing.
Of course, we cannot just simply run with altered assembly either, because the launcher does an integrity check.
The game however does not check for integrity.
We patch the assembly to bypass the security mechanisms in place to dump our data.
To be specific, we make the checks of battleye and certificate checking always return successfully.
We also add logic for saving received data from the server to save data obtained.
We use the "swap exploit" by quickly replacing the assembly when the game starts to load our custom assembly.
We patch the assembly to bypass the security mechanisms in place to dump our data.
To be specific, we make the checks of battleye and certificate checking always return successfully.
We also add logic for saving received data from the server to save data obtained.
We use the "swap exploit" by quickly replacing the assembly when the game starts to load our custom assembly.
To be able to make patches, we deobfuscate the assembly.
But since de4dot isn't capable of understanding the obfuscation algorithm fully, we use an additional specialized deobfuscator command.
In addition, we save the assembly in the gamefiles before making modifications to fix the resolutionscope error.
To be able to make patches, we deobfuscate the assembly.
But since de4dot isn't capable of understanding the obfuscation algorithm fully, we use an additional specialized deobfuscator command.
In addition, we save the assembly in the gamefiles before making modifications to fix the resolutionscope error.
## Legenda
```markdown
**path** **what** | **example**
**path** | **what** | **example**
------------ | ----------------------------- | ----------------------
`%gamedir%` | Escape From Tarkov (Live) | `C:/games/EFT/ (Live)`
```
## Requirements
@ -42,62 +40,63 @@ In addition, we save the assembly in the gamefiles before making modifications t
## 1. Dumper
1. Copy-paste `%gamedir%/EscapeFromTarkov_Data/Managed/Assembly-CSharp.dll` to your de4dot folder
2. Drag `Assembly-CSharp.dll` on top of `de4ot-x64.exe`
3. Open `Assembly-CSharp-cleaned.dll` in dnSpy
4. Find the deobfuscation method (appendix 1.1)
5. Run the deobfuscate command with the token from the deobfuscation method (appendix 1.2)
6. Cut-paste `Assembly-CSharp-cleaned-cleaned.dll` to `%gamedir%/EscapeFromTarkov_Data/Managed/`
7. Open `Assembly-CSharp-cleaned-cleaned.dll` in dnSpy
1. Copy-paste `%gamedir%/EscapeFromTarkov_Data/Managed/Assembly-CSharp.dll` to your de4dot folder.
2. Drag `Assembly-CSharp.dll` on top of `de4ot-x64.exe`.
3. Open `Assembly-CSharp-cleaned.dll` in dnSpy.
4. Find the deobfuscation method (appendix 1.1).
5. Run the deobfuscate command with the token from the deobfuscation method (appendix 1.2).
6. Cut-paste `Assembly-CSharp-cleaned-cleaned.dll` to `%gamedir%/EscapeFromTarkov_Data/Managed/`.
7. Open `Assembly-CSharp-cleaned-cleaned.dll` in dnSpy.
8. dnSpy > File > Save Module.
9. Apply dumper patch (appendix 1.3)
10. Apply ssl patch (appendix 1.4)
11. Apply battleye patch (appendix 1.5)
12. dnSpy > File > Save Module
9. Apply dumper patch (appendix 1.3).
10. Apply ssl patch (appendix 1.4).
11. Apply battleye patch (appendix 1.5).
12. dnSpy > File > Save Module.
## 2. Backup
1. Create `%gamedir%/backup/`
2. Copy-paste `Assembly-CSharp.dll` to `%gamedir%/backup/`
3. Rename `Assembly-CSharp.dll` in `%gamedir%/backup/` to `Assembly-CSharp.dll.bak`
4. Cut-paste `Assembly-CSharp-cleaned-cleaned.dll` to `%gamedir%/backup/`
5. Rename `Assembly-CSharp-cleaned-cleaned.dll` in `%gamedir%/backup/` to `Assembly-CSharp.dll`
1. Create `%gamedir%/backup/`.
2. Copy-paste `Assembly-CSharp.dll` to `%gamedir%/backup/`.
3. Rename `Assembly-CSharp.dll` in `%gamedir%/backup/` to `Assembly-CSharp.dll.bak`.
4. Cut-paste `Assembly-CSharp-cleaned-cleaned.dll` to `%gamedir%/backup/`.
5. Rename `Assembly-CSharp-cleaned-cleaned.dll` in `%gamedir%/backup/` to `Assembly-CSharp.dll`.
## 3. Dumping server data
1. Open Battlestate Games Launcher
2. Battlestate Games Launcher > settings > close launcher when game starts
3. Start the game
4. Copy-paste `%gamedir%/backup/Assembly-CSharp.dll` to `%gamedir%/EscapeFromTarkov_Data/Managed/` when the launcher closes
5. `%gamedir%/HTTP_DATA/` appears when you reached the main menu
6. Dump the data (appendix 2)
7. Close the game
8. Replace `Assembly-CSharp.dll` with the original assembly
1. Open Battlestate Games Launcher.
2. Battlestate Games Launcher > settings > close launcher when game starts.
3. Start the game.
4. Copy-paste `%gamedir%/backup/Assembly-CSharp.dll` to `%gamedir%/EscapeFromTarkov_Data/Managed/` when the launcher closes.
5. `%gamedir%/HTTP_DATA/` appears when you reached the main menu.
6. Dump the data (appendix 2).
7. Close the game.
8. Replace `Assembly-CSharp.dll` with the original assembly.
## 4. Dumping asset data
1. Open AssetStudio.
2. AssetStudio > File > Load File > `%gamedir%/EscapeFromTarkov_Data/sharedassets2.assets`
3. Switch from Scene Hierarchy to Asset List
4. AssetStudio > Filter Type > what you look for (example: `TextAsset`)
5. Select the map files you want (example: `bigmap2`, `RezervBase6`)
6. AssetStudio > Export > Selected Assets
2. AssetStudio > File > Load File > `%gamedir%/EscapeFromTarkov_Data/sharedassets2.assets`.
3. Switch from Scene Hierarchy to Asset List.
4. AssetStudio > Filter Type > what you look for (example: `TextAsset`).
5. Select the map files you want (example: `bigmap2`, `RezervBase6`).
6. AssetStudio > Export > Selected Assets.
## Conclusion
Congratulations, you've succesfully dumped Escape From Tarkov's data.
Congratulations, you've succesfully dumped Escape From Tarkov's data.
In order to use it in Aki's database, you have 2 options:
- Manually convert the data
- Use a tool like `aki-analyzer` to convert the data into the format the server accepts
- Manually convert the data.
- Use a tool like `aki-analyzer` to convert the data into the format the server accepts.
The data does contain sensitive information such as you account id, so be careful whom you share it with.
`aki-analyzer` strips out the sensitive information when it converts the data to the right format.
And no, the data dumped from the game server cannot be uploaded back to the game server.
The data does contain sensitive information such as you account id, so be careful whom you share it with.\
`aki-analyzer` strips out the sensitive information when it converts the data to the right format.\
And no, the data dumped from the game server cannot be uploaded back to the game server.
## Appendix 1: Code
All code is based on Escape From Tarkov 0.12.8.9819.
All code is based on Escape From Tarkov 0.12.8.9819.
### 1.1. Deobfuscation method in assembly
@ -152,10 +151,9 @@ Class784.RunValidation()
## Appendix 2: Obtaining specific data
This discusses how you can obtain certain data with the dumper installed.
This discusses how you can obtain certain data with the dumper installed.
```markdown
**Type** | **How**
**Type** | **How**
--------------- | -----------------------------------------------------------------------------------------------------
Startup locales | Start the game in the locale you want to dump.
Game locales | Select the locale in game settings.
@ -168,4 +166,3 @@ Location (loot) | Rip from game files.
Models | Rip from game files.
Textures | Rip from game files.
Audio | Rip from game files.
```