RESTRUCTURING 1

- change formats to have their own folders with mod + include files + anything they want
- change format list to be defined in formats.rs instead of in each format
- move utils to their respective formats
- some minor code changes in some formats

src/formats/pfl_upg/include.rs

@@ -0,0 +1,67 @@
+use crate::utils::common;
+use binrw::BinRead;
+use aes::Aes256;
+use ecb::{Decryptor, cipher::{BlockDecryptMut, KeyInit, generic_array::GenericArray}};
+
+pub static AUTO_FWS: &[(&str, &str)] = &[
+    ("Q5551", "q5551"),
+    ("Q5553", "q5551"),
+    ("Q554E", "q5551"),
+    ("Q554M", "q5551"),
+    ("QF1EU", "qf1eu"),
+    ("QF2EU", "qf1eu"),
+    ("Q591E", "q591e"),
+    ("Q522E", "q522e"),
+    ("Q582E", "q522e"),
+    ("Q5481", "q5481"),
+    ("Q5431", "q5431"),
+    ("Q5492", "q5492"),
+    ("S5551", "q5551"), //Sharp
+];
+
+type Aes256EcbDec = Decryptor<Aes256>;
+
+pub fn decrypt_aes256_ecb(key: &[u8], ciphertext: &[u8]) -> Result<Vec<u8>, Box<dyn std::error::Error>> {
+    let key_array: [u8; 32] = key.try_into()?;
+
+    let mut decryptor = Aes256EcbDec::new(&key_array.into());
+    let mut buffer = ciphertext.to_vec();
+
+    for chunk in buffer.chunks_exact_mut(16) {
+        let block: &mut [u8; 16] = chunk.try_into()?;
+        decryptor.decrypt_block_mut(GenericArray::from_mut_slice(block));
+    }
+    
+    Ok(buffer)
+}
+
+#[derive(BinRead)]
+pub struct Header {
+    _magic_bytes: [u8; 8],
+    pub header_size: u32,
+    pub data_size: u32,
+	_crc32: u32,
+	pub mask: u32,
+	_data_size_decompressed: u32,
+	_padding2: u32,
+	description_bytes: [u8; 512],
+}
+impl Header {
+    pub fn description(&self) -> String {
+        common::string_from_bytes(&self.description_bytes)
+    }
+}
+
+#[derive(BinRead)]
+pub struct FileHeader {
+    file_name_bytes: [u8; 60],
+    pub real_size: u32,
+	pub stored_size: u32,
+	pub header_size: u32,
+    pub attributes: [u8; 4],
+}
+impl FileHeader {
+    pub fn file_name(&self) -> String {
+        common::string_from_bytes(&self.file_name_bytes)
+    }
+}