From 5967c88b3e3ea7f0596fb779441516aa7fd138f5 Mon Sep 17 00:00:00 2001
From: Sorin Petreasca <petreasca.sorin@gmail.com>
Date: Sat, 4 Nov 2023 01:15:16 +0200
Subject: [PATCH] proxy deployer contract

---
 Cargo.toml                                    |   2 +
 contracts/proxy-deployer/.gitignore           |   7 +
 contracts/proxy-deployer/Cargo.toml           |  16 ++
 contracts/proxy-deployer/meta/Cargo.toml      |  13 ++
 contracts/proxy-deployer/meta/src/main.rs     |   3 +
 contracts/proxy-deployer/multiversx.json      |   3 +
 .../src/address_to_id_mapper.rs               | 192 +++++++++++++++
 contracts/proxy-deployer/src/config.rs        |  42 ++++
 .../src/contract_interactions.rs              |  94 ++++++++
 contracts/proxy-deployer/src/lib.rs           |  16 ++
 contracts/proxy-deployer/wasm/Cargo.lock      | 219 ++++++++++++++++++
 contracts/proxy-deployer/wasm/Cargo.toml      |  25 ++
 contracts/proxy-deployer/wasm/src/lib.rs      |  36 +++
 13 files changed, 668 insertions(+)
 create mode 100644 contracts/proxy-deployer/.gitignore
 create mode 100644 contracts/proxy-deployer/Cargo.toml
 create mode 100644 contracts/proxy-deployer/meta/Cargo.toml
 create mode 100644 contracts/proxy-deployer/meta/src/main.rs
 create mode 100644 contracts/proxy-deployer/multiversx.json
 create mode 100644 contracts/proxy-deployer/src/address_to_id_mapper.rs
 create mode 100644 contracts/proxy-deployer/src/config.rs
 create mode 100644 contracts/proxy-deployer/src/contract_interactions.rs
 create mode 100644 contracts/proxy-deployer/src/lib.rs
 create mode 100644 contracts/proxy-deployer/wasm/Cargo.lock
 create mode 100644 contracts/proxy-deployer/wasm/Cargo.toml
 create mode 100644 contracts/proxy-deployer/wasm/src/lib.rs

diff --git a/Cargo.toml b/Cargo.toml
index 05451ba3..47589ced 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -59,6 +59,8 @@ members = [
   "contracts/paymaster/meta",
   "contracts/ping-pong-egld",
   "contracts/ping-pong-egld/meta",
+  "contracts/proxy-deployer",
+  "contracts/proxy-deployer/meta",
   "contracts/proxy-pause",
   "contracts/proxy-pause/meta",
   "contracts/rewards-distribution",
diff --git a/contracts/proxy-deployer/.gitignore b/contracts/proxy-deployer/.gitignore
new file mode 100644
index 00000000..920d759a
--- /dev/null
+++ b/contracts/proxy-deployer/.gitignore
@@ -0,0 +1,7 @@
+# Generated by Cargo
+# will have compiled files and executables
+/target/
+*/target/
+
+# The erdpy output
+output*
diff --git a/contracts/proxy-deployer/Cargo.toml b/contracts/proxy-deployer/Cargo.toml
new file mode 100644
index 00000000..5eb07fcd
--- /dev/null
+++ b/contracts/proxy-deployer/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "proxy-deployer"
+version = "0.0.0"
+authors = ["MultiversX <contact@multiversx.com>"]
+edition = "2021"
+publish = false
+
+[lib]
+path = "src/lib.rs"
+
+[dependencies.multiversx-sc]
+version = "=0.43.4"
+features = ["esdt-token-payment-legacy-decode"]
+
+[dev-dependencies.multiversx-sc-scenario]
+version = "=0.43.4"
diff --git a/contracts/proxy-deployer/meta/Cargo.toml b/contracts/proxy-deployer/meta/Cargo.toml
new file mode 100644
index 00000000..b1d9a531
--- /dev/null
+++ b/contracts/proxy-deployer/meta/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "proxy-deployer-meta"
+version = "0.0.0"
+edition = "2021"
+publish = false
+authors = ["MultiversX <contact@multiversx.com>"]
+
+[dev-dependencies]
+[dependencies.proxy-deployer]
+path = ".."
+
+[dependencies.multiversx-sc-meta]
+version = "0.43.4"
diff --git a/contracts/proxy-deployer/meta/src/main.rs b/contracts/proxy-deployer/meta/src/main.rs
new file mode 100644
index 00000000..6df25a6b
--- /dev/null
+++ b/contracts/proxy-deployer/meta/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    multiversx_sc_meta::cli_main::<proxy_deployer::AbiProvider>();
+}
diff --git a/contracts/proxy-deployer/multiversx.json b/contracts/proxy-deployer/multiversx.json
new file mode 100644
index 00000000..73655396
--- /dev/null
+++ b/contracts/proxy-deployer/multiversx.json
@@ -0,0 +1,3 @@
+{
+    "language": "rust"
+}
\ No newline at end of file
diff --git a/contracts/proxy-deployer/src/address_to_id_mapper.rs b/contracts/proxy-deployer/src/address_to_id_mapper.rs
new file mode 100644
index 00000000..f9888f76
--- /dev/null
+++ b/contracts/proxy-deployer/src/address_to_id_mapper.rs
@@ -0,0 +1,192 @@
+use core::marker::PhantomData;
+
+use multiversx_sc::{
+    api::StorageMapperApi,
+    storage::{storage_get_from_address, storage_get_len_from_address, StorageKey},
+    storage_clear, storage_get, storage_get_len, storage_set,
+};
+
+multiversx_sc::imports!();
+
+static ID_SUFFIX: &[u8] = b"userId";
+static ADDRESS_SUFFIX: &[u8] = b"addr";
+static LAST_ID_SUFFIX: &[u8] = b"lastId";
+
+static UNKNOW_ADDR_ERR_MSG: &[u8] = b"Unknown address";
+
+pub type AddressId = u64;
+pub const NULL_ID: AddressId = 0;
+
+pub struct AddressToIdMapper<SA>
+where
+    SA: StorageMapperApi,
+{
+    _phantom_api: PhantomData<SA>,
+    base_key: StorageKey<SA>,
+}
+
+impl<SA> StorageMapper<SA> for AddressToIdMapper<SA>
+where
+    SA: StorageMapperApi,
+{
+    fn new(base_key: StorageKey<SA>) -> Self {
+        AddressToIdMapper {
+            _phantom_api: PhantomData,
+            base_key,
+        }
+    }
+}
+
+impl<SA> AddressToIdMapper<SA>
+where
+    SA: StorageMapperApi,
+{
+    pub fn contains_id(&self, id: AddressId) -> bool {
+        let key = self.id_to_address_key(id);
+        storage_get_len(key.as_ref()) != 0
+    }
+
+    pub fn get_id(&self, address: &ManagedAddress<SA>) -> AddressId {
+        let key = self.address_to_id_key(address);
+        storage_get(key.as_ref())
+    }
+
+    pub fn get_id_at_address(
+        &self,
+        sc_address: &ManagedAddress<SA>,
+        address_to_find: &ManagedAddress<SA>,
+    ) -> AddressId {
+        let key = self.address_to_id_key(address_to_find);
+        storage_get_from_address(sc_address.as_ref(), key.as_ref())
+    }
+
+    pub fn get_id_non_zero(&self, address: &ManagedAddress<SA>) -> AddressId {
+        let id = self.get_id(address);
+        if id == NULL_ID {
+            SA::error_api_impl().signal_error(UNKNOW_ADDR_ERR_MSG);
+        }
+
+        id
+    }
+
+    pub fn get_id_at_address_non_zero(
+        &self,
+        sc_address: &ManagedAddress<SA>,
+        address_to_find: &ManagedAddress<SA>,
+    ) -> AddressId {
+        let id = self.get_id_at_address(sc_address, address_to_find);
+        if id == NULL_ID {
+            SA::error_api_impl().signal_error(UNKNOW_ADDR_ERR_MSG);
+        }
+
+        id
+    }
+
+    pub fn insert_new(&self, address: &ManagedAddress<SA>) -> AddressId {
+        let existing_id = self.get_id(address);
+        if existing_id != NULL_ID {
+            SA::error_api_impl().signal_error(b"Address already registered");
+        }
+
+        self.insert_address(address)
+    }
+
+    pub fn get_address(&self, id: AddressId) -> Option<ManagedAddress<SA>> {
+        let key = self.id_to_address_key(id);
+        if storage_get_len(key.as_ref()) == 0 {
+            return None;
+        }
+
+        let addr = storage_get(key.as_ref());
+        Some(addr)
+    }
+
+    pub fn get_address_at_address(
+        &self,
+        sc_address: &ManagedAddress<SA>,
+        id: AddressId,
+    ) -> Option<ManagedAddress<SA>> {
+        let key = self.id_to_address_key(id);
+        if storage_get_len_from_address(sc_address.as_ref(), key.as_ref()) == 0 {
+            return None;
+        }
+
+        let addr = storage_get_from_address(sc_address.as_ref(), key.as_ref());
+        Some(addr)
+    }
+
+    pub fn get_id_or_insert(&self, address: &ManagedAddress<SA>) -> AddressId {
+        let current_id = storage_get(self.address_to_id_key(address).as_ref());
+        if current_id != 0 {
+            return current_id;
+        }
+
+        self.insert_address(address)
+    }
+
+    pub fn remove_by_id(&self, id: AddressId) -> Option<ManagedAddress<SA>> {
+        let address = self.get_address(id)?;
+        self.remove_entry(id, &address);
+
+        Some(address)
+    }
+
+    pub fn remove_by_address(&self, address: &ManagedAddress<SA>) -> AddressId {
+        let current_id = self.get_id(address);
+        if current_id != NULL_ID {
+            self.remove_entry(current_id, address);
+        }
+
+        current_id
+    }
+
+    fn insert_address(&self, address: &ManagedAddress<SA>) -> AddressId {
+        let new_id = self.get_last_id() + 1;
+        storage_set(self.address_to_id_key(address).as_ref(), &new_id);
+        storage_set(self.id_to_address_key(new_id).as_ref(), address);
+
+        self.set_last_id(new_id);
+
+        new_id
+    }
+
+    fn remove_entry(&self, id: AddressId, address: &ManagedAddress<SA>) {
+        storage_clear(self.address_to_id_key(address).as_ref());
+        storage_clear(self.id_to_address_key(id).as_ref());
+    }
+
+    fn id_to_address_key(&self, id: AddressId) -> StorageKey<SA> {
+        let mut item_key = self.base_key.clone();
+        item_key.append_bytes(ID_SUFFIX);
+        item_key.append_item(&id);
+
+        item_key
+    }
+
+    fn address_to_id_key(&self, address: &ManagedAddress<SA>) -> StorageKey<SA> {
+        let mut item_key = self.base_key.clone();
+        item_key.append_bytes(ADDRESS_SUFFIX);
+        item_key.append_item(address);
+
+        item_key
+    }
+
+    fn last_id_key(&self) -> StorageKey<SA> {
+        let mut item_key = self.base_key.clone();
+        item_key.append_bytes(LAST_ID_SUFFIX);
+
+        item_key
+    }
+
+    pub fn get_last_id(&self) -> AddressId {
+        storage_get(self.last_id_key().as_ref())
+    }
+
+    fn set_last_id(&self, last_id: AddressId) {
+        if last_id == 0 {
+            SA::error_api_impl().signal_error(b"ID Overflow");
+        }
+
+        storage_set(self.last_id_key().as_ref(), &last_id);
+    }
+}
diff --git a/contracts/proxy-deployer/src/config.rs b/contracts/proxy-deployer/src/config.rs
new file mode 100644
index 00000000..4e8492da
--- /dev/null
+++ b/contracts/proxy-deployer/src/config.rs
@@ -0,0 +1,42 @@
+multiversx_sc::imports!();
+
+use crate::address_to_id_mapper::{AddressId, AddressToIdMapper};
+
+#[multiversx_sc::module]
+pub trait ConfigModule {
+    #[only_owner]
+    #[endpoint(addContractTemplate)]
+    fn add_contract_template(&self, template_address: ManagedAddress) -> AddressId {
+        require!(
+            self.blockchain().is_smart_contract(&template_address),
+            "Invalid template address"
+        );
+
+        self.address_ids().insert_new(&template_address)
+    }
+
+    #[only_owner]
+    #[endpoint(removeContractTemplate)]
+    fn remove_contract_template(&self, address_id: AddressId) {
+        require!(
+            self.address_ids().contains_id(address_id),
+            "Invalid address id"
+        );
+
+        self.address_ids().remove_by_id(address_id);
+    }
+
+    #[storage_mapper("addressIds")]
+    fn address_ids(&self) -> AddressToIdMapper<Self::Api>;
+
+    #[view(getAllDeployers)]
+    #[storage_mapper("deployersList")]
+    fn deployers_list(&self) -> UnorderedSetMapper<ManagedAddress>;
+
+    #[view(getDeployerContractAddresses)]
+    #[storage_mapper("deployerContractAddresses")]
+    fn deployer_contract_addresses(
+        &self,
+        deployer_address: &ManagedAddress,
+    ) -> UnorderedSetMapper<ManagedAddress>;
+}
diff --git a/contracts/proxy-deployer/src/contract_interactions.rs b/contracts/proxy-deployer/src/contract_interactions.rs
new file mode 100644
index 00000000..51b70ed7
--- /dev/null
+++ b/contracts/proxy-deployer/src/contract_interactions.rs
@@ -0,0 +1,94 @@
+multiversx_sc::imports!();
+
+use crate::address_to_id_mapper::AddressId;
+use crate::config;
+
+#[multiversx_sc::module]
+pub trait ContractInteractionsModule: config::ConfigModule {
+    #[endpoint(deployContract)]
+    fn deploy_contract(
+        &self,
+        template_address_id: AddressId,
+        args: MultiValueEncoded<ManagedBuffer>,
+    ) -> ManagedAddress {
+        let caller = self.blockchain().get_caller();
+
+        let mut arguments = ManagedArgBuffer::new();
+        for arg in args {
+            arguments.push_arg(arg);
+        }
+
+        let opt_template_address = self.address_ids().get_address(template_address_id);
+        let template_address = match opt_template_address {
+            Some(template_address) => template_address,
+            None => sc_panic!("Template not found"),
+        };
+
+        let (new_contract_address, _) = self.send_raw().deploy_from_source_contract(
+            self.blockchain().get_gas_left(),
+            &BigUint::zero(),
+            &template_address,
+            CodeMetadata::DEFAULT,
+            &arguments,
+        );
+
+        self.deployer_contract_addresses(&caller)
+            .insert(new_contract_address.clone());
+        self.deployers_list().insert(caller);
+
+        new_contract_address
+    }
+
+    #[endpoint(upgradeContract)]
+    fn upgrade_contract(
+        &self,
+        contract_address: ManagedAddress,
+        template_address_id: AddressId,
+        args: MultiValueEncoded<ManagedBuffer>,
+    ) {
+        let caller = self.blockchain().get_caller();
+        require!(self.deployer_contract_addresses(&caller).contains(&contract_address), "Caller is not the deployer of the contract");
+
+        let mut arguments = ManagedArgBuffer::new();
+        for arg in args {
+            arguments.push_arg(arg);
+        }
+
+        let opt_template_address = self.address_ids().get_address(template_address_id);
+        let template_address = match opt_template_address {
+            Some(template_address) => template_address,
+            None => sc_panic!("Template not found"),
+        };
+
+        self.send_raw().upgrade_from_source_contract(
+            &contract_address,
+            self.blockchain().get_gas_left(),
+            &BigUint::zero(),
+            &template_address,
+            CodeMetadata::DEFAULT,
+            &arguments,
+        );
+    }
+
+    #[endpoint(callContractEndpoint)]
+    fn call_contract_endpoint(
+        &self,
+        contract_address: ManagedAddress,
+        function_name: ManagedBuffer,
+        args: MultiValueEncoded<ManagedBuffer>,
+    ) {
+        let caller = self.blockchain().get_caller();
+        require!(self.deployer_contract_addresses(&caller).contains(&contract_address), "Caller is not the deployer of the contract");
+
+        let gas_left = self.blockchain().get_gas_left();
+        let mut contract_call = self
+            .send()
+            .contract_call::<()>(contract_address, function_name)
+            .with_gas_limit(gas_left);
+
+        for arg in args {
+            contract_call.push_raw_argument(arg);
+        }
+        let _: IgnoreValue = contract_call.execute_on_dest_context();
+    }
+}
diff --git a/contracts/proxy-deployer/src/lib.rs b/contracts/proxy-deployer/src/lib.rs
new file mode 100644
index 00000000..15800090
--- /dev/null
+++ b/contracts/proxy-deployer/src/lib.rs
@@ -0,0 +1,16 @@
+#![no_std]
+
+multiversx_sc::imports!();
+
+pub mod address_to_id_mapper;
+pub mod config;
+pub mod contract_interactions;
+
+#[multiversx_sc::contract]
+pub trait ProxyDeployer: contract_interactions::ContractInteractionsModule + config::ConfigModule {
+    #[init]
+    fn init(&self) {}
+
+    #[endpoint]
+    fn upgrade(&self) {}
+}
diff --git a/contracts/proxy-deployer/wasm/Cargo.lock b/contracts/proxy-deployer/wasm/Cargo.lock
new file mode 100644
index 00000000..8066d1b0
--- /dev/null
+++ b/contracts/proxy-deployer/wasm/Cargo.lock
@@ -0,0 +1,219 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "ahash"
+version = "0.8.3"
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+dependencies = [
+ "cfg-if",
+ "once_cell",
+ "version_check",
+]
+
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+ "hex-literal",
+ "multiversx-sc-codec",
+ "multiversx-sc-derive",
+ "num-traits",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "proxy-deployer"
+version = "0.0.0"
+dependencies = [
+ "multiversx-sc",
+]
+
+[[package]]
+name = "proxy-deployer-wasm"
+version = "0.0.0"
+dependencies = [
+ "multiversx-sc-wasm-adapter",
+ "proxy-deployer",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "radix_trie"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c069c179fcdc6a2fe24d8d18305cf085fdbd4f922c041943e203685d6a1c58fd"
+dependencies = [
+ "endian-type",
+ "nibble_vec",
+]
+
+[[package]]
+name = "smallvec"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
+
+[[package]]
+name = "syn"
+version = "1.0.107"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
diff --git a/contracts/proxy-deployer/wasm/Cargo.toml b/contracts/proxy-deployer/wasm/Cargo.toml
new file mode 100644
index 00000000..b2efd65a
--- /dev/null
+++ b/contracts/proxy-deployer/wasm/Cargo.toml
@@ -0,0 +1,25 @@
+[package]
+name = "proxy-deployer-wasm"
+version = "0.0.0"
+edition = "2021"
+publish = false
+authors = ["MultiversX <contact@multiversx.com>"]
+
+[lib]
+crate-type = ["cdylib"]
+
+[workspace]
+members = ["."]
+
+[dev-dependencies]
+[profile.release]
+codegen-units = 1
+opt-level = "z"
+lto = true
+debug = false
+panic = "abort"
+[dependencies.proxy-deployer]
+path = ".."
+
+[dependencies.multiversx-sc-wasm-adapter]
+version = "=0.43.4"
diff --git a/contracts/proxy-deployer/wasm/src/lib.rs b/contracts/proxy-deployer/wasm/src/lib.rs
new file mode 100644
index 00000000..a832535a
--- /dev/null
+++ b/contracts/proxy-deployer/wasm/src/lib.rs
@@ -0,0 +1,36 @@
+// Code generated by the multiversx-sc multi-contract system. DO NOT EDIT.
+
+////////////////////////////////////////////////////
+////////////////// AUTO-GENERATED //////////////////
+////////////////////////////////////////////////////
+
+// Init:                                 1
+// Endpoints:                            8
+// Async Callback (empty):               1
+// Total number of exported functions:  10
+
+#![no_std]
+
+// Configuration that works with rustc < 1.73.0.
+// TODO: Recommended rustc version: 1.73.0 or newer.
+#![feature(lang_items)]
+
+multiversx_sc_wasm_adapter::allocator!();
+multiversx_sc_wasm_adapter::panic_handler!();
+
+multiversx_sc_wasm_adapter::endpoints! {
+    proxy_deployer
+    (
+        init => init
+        upgrade => upgrade
+        deployContract => deploy_contract
+        upgradeContract => upgrade_contract
+        callContractEndpoint => call_contract_endpoint
+        addContractTemplate => add_contract_template
+        removeContractTemplate => remove_contract_template
+        getAllDeployers => deployers_list
+        getDeployerContractAddresses => deployer_contract_addresses
+    )
+}
+
+multiversx_sc_wasm_adapter::async_callback_empty! {}