Add Filecoin support

.env.example

@@ -744,6 +744,61 @@ MODULE_zcash-main_NODES[]=http://login:[email protected]:1234/
 MODULE_zcash-main_REQUESTER_TIMEOUT=60
 MODULE_zcash-main_REQUESTER_THREADS=12
 
+######################
+## Main Filecoin Module
+######################
+
+MODULES[]=filecoin-main
+MODULE_filecoin-main_CLASS=FilecoinMainModule
+MODULE_filecoin-main_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-main_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-main_REQUESTER_TIMEOUT=60
+MODULE_filecoin-main_REQUESTER_THREADS=12
+
+######################
+## Trace Filecoin Module
+######################
+
+MODULES[]=filecoin-trace
+MODULE_filecoin-trace_CLASS=FilecoinTraceModule
+MODULE_filecoin-trace_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-trace_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-trace_REQUESTER_TIMEOUT=60
+MODULE_filecoin-trace_REQUESTER_THREADS=12
+
+######################
+## ERC20 EVM Filecoin Module
+######################
+
+MODULES[]=filecoin-evm-erc-20
+MODULE_filecoin-evm-erc-20_CLASS=FilecoinEVMERC20Module
+MODULE_filecoin-evm-erc-20_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-evm-erc-20_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-evm-erc-20_REQUESTER_TIMEOUT=60
+MODULE_filecoin-evm-erc-20_REQUESTER_THREADS=12
+
+######################
+## ERC721 EVM Filecoin Module
+######################
+
+MODULES[]=filecoin-evm-erc-721
+MODULE_filecoin-evm-erc-721_CLASS=FilecoinEVMERC721Module
+MODULE_filecoin-evm-erc-721_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-evm-erc-721_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-evm-erc-721_REQUESTER_TIMEOUT=60
+MODULE_filecoin-evm-erc-721_REQUESTER_THREADS=12
+
+######################
+## ERC1155 EVM Filecoin Module
+######################
+
+MODULES[]=filecoin-evm-erc-1155
+MODULE_filecoin-evm-erc-1155_CLASS=FilecoinEVMERC1155Module
+MODULE_filecoin-evm-erc-1155_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-evm-erc-1155_NODES[]=http://login:[email protected]:1234/
+MODULE_filecoin-evm-erc-1155_REQUESTER_TIMEOUT=60
+MODULE_filecoin-evm-erc-1155_REQUESTER_THREADS=12
+
 ############################
 # Titles, descriptions, etc.
 ############################

CONTRIBUTORS.md

@@ -7,5 +7,7 @@
     - Beacon Chain modules
 * [alexqrid](https://github.com/alexqrid)
   - TVM modules
+* [Kirill Kuzminykh](https://github.com/Oskal174)
+  - Filecoin modules
 * [Oleg Makaussov](https://github.com/Lorgansar)
     - Cardano Tokens modules

Engine/Requester.php

@@ -7,7 +7,7 @@
 /*  Various curl functions for requesting data from nodes  */
 
 // Just a single curl request
-function requester_single($daemon, $endpoint = '', $params = [], $result_in = '', $timeout = 600, $valid_codes = [200], $no_json_encode = false, $flags = [])
+function requester_single($daemon, $endpoint = '', $params = [], $result_in = '', $ignore_errors = false, $timeout = 600, $valid_codes = [200], $no_json_encode = false, $flags = [])
 {
     static $curl = null;
 
@@ -106,7 +106,7 @@ function requester_single($daemon, $endpoint = '', $params = [], $result_in = ''
         throw new RequesterException("requester_request(daemon:({$daemon_clean}), endpoint:({$endpoint}), params:({$params_log}), result_in:({$result_in})) failed: bad JSON; preg error: {$e_preg}, json error: {$e_json}"); //  . print_r($output, true)
     }
 
-    if (isset($output['error']))
+    if (isset($output['error']) && !$ignore_errors)
     {
         throw new RequesterException("requester_request(daemon:({$daemon_clean}), endpoint:({$endpoint}), params:({$params_log}), result_in:({$result_in})) errored: " . print_r($output['error'], true));
     }

Modules/Common/EVMERC1155Module.php

@@ -64,6 +64,14 @@ final public function pre_process_block($block_id)
 
         if ((!in_array(EVMSpecialFeatures::zkEVM, $this->extra_features)))
         {
+            // Filecoin may have empty tipsets (ex. 3508881)
+            if (in_array(EVMSpecialFeatures::fEVM, $this->extra_features) && $this->block_hash === '')
+            {
+                $this->set_return_events([]);
+                $this->set_return_currencies([]);
+                return;
+            }
+
             $multi_curl[] = requester_multi_prepare($this->select_node(),
                 params: ['jsonrpc' => '2.0',
                          'method'  => 'eth_getLogs',

Modules/Common/EVMERC20Module.php

@@ -60,6 +60,14 @@ final public function pre_process_block($block_id)
 
         if ((!in_array(EVMSpecialFeatures::zkEVM, $this->extra_features)))
         {
+            // Filecoin may have empty tipsets (ex. 3508881)
+            if (in_array(EVMSpecialFeatures::fEVM, $this->extra_features) && $this->block_hash === '')
+            {
+                $this->set_return_events([]);
+                $this->set_return_currencies([]);
+                return;
+            }
+
             $logs = requester_single($this->select_node(),
                 params: ['jsonrpc' => '2.0',
                          'method'  => 'eth_getLogs',

Modules/Common/EVMERC721Module.php

@@ -62,6 +62,14 @@ final public function pre_process_block($block_id)
 
         if ((!in_array(EVMSpecialFeatures::zkEVM, $this->extra_features)))
         {
+            // Filecoin may have empty tipsets (ex. 3508881)
+            if (in_array(EVMSpecialFeatures::fEVM, $this->extra_features) && $this->block_hash === '')
+            {
+                $this->set_return_events([]);
+                $this->set_return_currencies([]);
+                return;
+            }
+
             $logs = requester_single($this->select_node(),
                 params: ['jsonrpc' => '2.0',
                          'method'  => 'eth_getLogs',

Modules/Common/EVMTraits.php

@@ -33,6 +33,7 @@ enum EVMSpecialFeatures
     case zkEVM;
     case HasSystemTransactions;
     case EffectiveGasPriceCanBeZero;
+    case fEVM; // Filecoin EVM
 }
 
 trait EVMTraits
@@ -87,7 +88,32 @@ public function ensure_block($block_id, $break_on_first = false)
             throw new RequesterException("ensure_block(block_id: {$block_id}): no connection, previously: " . $e->getMessage());
         }
 
-        $result0 = requester_multi_process($curl_results[0], result_in: 'result');
+        $ignore_errors = false;
+        $result_in = 'result';
+        if (in_array(EVMSpecialFeatures::fEVM, $this->extra_features))
+        {
+            $ignore_errors = true;
+            $result_in = '';
+        }
+
+        $result0 = requester_multi_process($curl_results[0], ignore_errors: $ignore_errors, result_in: $result_in);
+
+        // Filecoin may have empty tipsets (ex. 3508881)
+        if (in_array(EVMSpecialFeatures::fEVM, $this->extra_features))
+        {
+            if (isset($result0['error']))
+            {
+                if ($result0['error']['message'] === 'requested epoch was a null round')
+                {
+                    $this->block_hash = '';
+                    $this->block_time = date('Y-m-d H:i:s', 0);
+                    return;
+                }
+                throw new ModuleException("requester_multi_process errored: " . print_r($result0['error'], true));
+            }
+
+            $result0 = $result0['result'];
+        }
 
         $hash_key = (!in_array(EVMSpecialFeatures::zkEVM, $this->extra_features))
             ? 'hash'