315 lines
8.7 KiB
Rust
315 lines
8.7 KiB
Rust
use crate::types::{
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Address,
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ChainID,
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};
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use bridge::{
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vaa::{
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DeserializePayload,
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SerializePayload,
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},
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DeserializeGovernancePayload,
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SerializeGovernancePayload,
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};
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use byteorder::{
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BigEndian,
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ReadBytesExt,
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WriteBytesExt,
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};
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use primitive_types::U256;
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use solana_program::{
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program_error::ProgramError::InvalidAccountData,
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pubkey::Pubkey,
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};
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use solitaire::SolitaireError;
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use std::{
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cmp,
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io::{
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Cursor,
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Read,
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Write,
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},
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};
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pub const MODULE: &str = "NFTBridge";
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#[derive(PartialEq, Debug, Clone)]
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pub struct PayloadTransfer {
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// Address of the token. Left-zero-padded if shorter than 32 bytes
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pub token_address: Address,
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// Chain ID of the token
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pub token_chain: ChainID,
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// Symbol of the token
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pub symbol: String,
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// Name of the token
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pub name: String,
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// TokenID of the token (big-endian uint256)
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pub token_id: U256,
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// URI of the token metadata
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pub uri: String,
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// Address of the recipient. Left-zero-padded if shorter than 32 bytes
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pub to: Address,
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// Chain ID of the recipient
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pub to_chain: ChainID,
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}
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impl DeserializePayload for PayloadTransfer {
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fn deserialize(buf: &mut &[u8]) -> Result<Self, SolitaireError> {
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use bstr::ByteSlice;
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let mut v = Cursor::new(buf);
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if v.read_u8()? != 1 {
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return Err(SolitaireError::Custom(0));
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};
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let mut token_address = Address::default();
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v.read_exact(&mut token_address)?;
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let token_chain = v.read_u16::<BigEndian>()?;
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// We may receive invalid UTF-8 over the bridge, especially if truncated. To compensate for
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// this we rely on the bstr libraries ability to parse invalid UTF-8, and strip out the
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// "Invalid Unicode Codepoint" (FFFD) characters. This becomes the canonical representation
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// on Solana.
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let mut symbol_data = vec![0u8; 32];
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v.read_exact(&mut symbol_data)?;
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symbol_data.retain(|&c| c != 0);
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let mut symbol: Vec<char> = symbol_data.chars().collect();
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symbol.retain(|&c| c != '\u{FFFD}');
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let symbol: String = symbol.iter().collect();
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let mut name_data = vec![0u8; 32];
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v.read_exact(&mut name_data)?;
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name_data.retain(|&c| c != 0);
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let mut name: Vec<char> = name_data.chars().collect();
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name.retain(|&c| c != '\u{FFFD}');
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let name: String = name.iter().collect();
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let mut id_data: [u8; 32] = [0; 32];
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v.read_exact(&mut id_data)?;
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let token_id = U256::from_big_endian(&id_data);
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let uri_len = v.read_u8()?;
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let mut uri_bytes = vec![0u8; uri_len as usize];
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v.read_exact(uri_bytes.as_mut_slice())?;
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let uri = String::from_utf8(uri_bytes).unwrap();
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let mut to = Address::default();
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v.read_exact(&mut to)?;
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let to_chain = v.read_u16::<BigEndian>()?;
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if v.position() != v.into_inner().len() as u64 {
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return Err(InvalidAccountData.into());
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}
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Ok(PayloadTransfer {
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token_address,
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token_chain,
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to,
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to_chain,
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symbol,
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name,
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token_id,
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uri,
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})
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}
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}
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impl SerializePayload for PayloadTransfer {
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fn serialize<W: Write>(&self, writer: &mut W) -> Result<(), SolitaireError> {
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// Payload ID
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writer.write_u8(1)?;
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writer.write_all(&self.token_address)?;
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writer.write_u16::<BigEndian>(self.token_chain)?;
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let mut symbol: [u8; 32] = [0; 32];
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let count = cmp::min(symbol.len(), self.symbol.len());
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symbol[..count].copy_from_slice(self.symbol[..count].as_bytes());
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writer.write_all(&symbol)?;
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let mut name: [u8; 32] = [0; 32];
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let count = cmp::min(name.len(), self.name.len());
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name[..count].copy_from_slice(self.name[..count].as_bytes());
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writer.write_all(&name)?;
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let mut id_data: [u8; 32] = [0; 32];
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self.token_id.to_big_endian(&mut id_data);
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writer.write_all(&id_data)?;
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writer.write_u8(self.uri.len() as u8)?;
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writer.write_all(self.uri.as_bytes())?;
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writer.write_all(&self.to)?;
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writer.write_u16::<BigEndian>(self.to_chain)?;
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Ok(())
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}
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}
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#[derive(PartialEq, Debug)]
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pub struct PayloadGovernanceRegisterChain {
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// Chain ID of the chain to be registered
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pub chain: ChainID,
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// Address of the endpoint on the chain
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pub endpoint_address: Address,
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}
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impl SerializeGovernancePayload for PayloadGovernanceRegisterChain {
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const MODULE: &'static str = MODULE;
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const ACTION: u8 = 1;
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}
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impl DeserializeGovernancePayload for PayloadGovernanceRegisterChain {
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}
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impl DeserializePayload for PayloadGovernanceRegisterChain
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where
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Self: DeserializeGovernancePayload,
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{
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fn deserialize(buf: &mut &[u8]) -> Result<Self, SolitaireError> {
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let mut v = Cursor::new(buf);
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Self::check_governance_header(&mut v)?;
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let chain = v.read_u16::<BigEndian>()?;
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let mut endpoint_address = [0u8; 32];
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v.read_exact(&mut endpoint_address)?;
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if v.position() != v.into_inner().len() as u64 {
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return Err(InvalidAccountData.into());
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}
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Ok(PayloadGovernanceRegisterChain {
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chain,
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endpoint_address,
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})
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}
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}
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impl SerializePayload for PayloadGovernanceRegisterChain
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where
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Self: SerializeGovernancePayload,
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{
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fn serialize<W: Write>(&self, writer: &mut W) -> Result<(), SolitaireError> {
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self.write_governance_header(writer)?;
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// Payload ID
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writer.write_u16::<BigEndian>(self.chain)?;
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writer.write_all(&self.endpoint_address[..])?;
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Ok(())
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}
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}
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#[derive(PartialEq, Debug)]
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pub struct GovernancePayloadUpgrade {
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// Address of the new Implementation
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pub new_contract: Pubkey,
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}
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impl SerializePayload for GovernancePayloadUpgrade {
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fn serialize<W: Write>(&self, v: &mut W) -> std::result::Result<(), SolitaireError> {
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self.write_governance_header(v)?;
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v.write_all(&self.new_contract.to_bytes())?;
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Ok(())
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}
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}
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impl DeserializePayload for GovernancePayloadUpgrade
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where
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Self: DeserializeGovernancePayload,
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{
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fn deserialize(buf: &mut &[u8]) -> Result<Self, SolitaireError> {
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let mut c = Cursor::new(buf);
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Self::check_governance_header(&mut c)?;
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let mut addr = [0u8; 32];
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c.read_exact(&mut addr)?;
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if c.position() != c.into_inner().len() as u64 {
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return Err(InvalidAccountData.into());
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}
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Ok(GovernancePayloadUpgrade {
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new_contract: Pubkey::new(&addr[..]),
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})
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}
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}
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impl SerializeGovernancePayload for GovernancePayloadUpgrade {
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const MODULE: &'static str = MODULE;
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const ACTION: u8 = 2;
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}
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impl DeserializeGovernancePayload for GovernancePayloadUpgrade {
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}
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#[cfg(test)]
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#[allow(unused_imports)]
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mod tests {
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use crate::messages::{
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GovernancePayloadUpgrade,
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PayloadGovernanceRegisterChain,
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PayloadTransfer,
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};
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use bridge::{
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DeserializePayload,
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SerializePayload,
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};
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use primitive_types::U256;
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use rand::RngCore;
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use solana_program::pubkey::Pubkey;
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#[test]
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pub fn test_serde_transfer() {
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let mut token_address = [0u8; 32];
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rand::thread_rng().fill_bytes(&mut token_address);
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let mut to = [0u8; 32];
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rand::thread_rng().fill_bytes(&mut to);
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let transfer_original = PayloadTransfer {
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token_address,
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token_chain: 8,
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to,
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to_chain: 1,
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name: String::from("Token Token"),
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symbol: String::from("TEST"),
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uri: String::from("https://abc.abc.abc.com"),
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token_id: U256::from(1234),
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};
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let data = transfer_original.try_to_vec().unwrap();
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let transfer_deser = PayloadTransfer::deserialize(&mut data.as_slice()).unwrap();
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assert_eq!(transfer_original, transfer_deser);
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}
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#[test]
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pub fn test_serde_gov_upgrade() {
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let original = GovernancePayloadUpgrade {
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new_contract: Pubkey::new_unique(),
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};
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let data = original.try_to_vec().unwrap();
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let deser = GovernancePayloadUpgrade::deserialize(&mut data.as_slice()).unwrap();
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assert_eq!(original, deser);
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}
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#[test]
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pub fn test_serde_gov_register_chain() {
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let mut endpoint_address = [0u8; 32];
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rand::thread_rng().fill_bytes(&mut endpoint_address);
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let original = PayloadGovernanceRegisterChain {
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chain: 8,
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endpoint_address,
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};
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let data = original.try_to_vec().unwrap();
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let deser = PayloadGovernanceRegisterChain::deserialize(&mut data.as_slice()).unwrap();
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assert_eq!(original, deser);
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}
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}
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