added check in web if a contract already verified

apps/block_scout_web/lib/block_scout_web/controllers/address_contract_verification_controller.ex

@@ -10,27 +10,31 @@ defmodule BlockScoutWeb.AddressContractVerificationController do
   alias Explorer.ThirdPartyIntegrations.Sourcify
 
   def new(conn, %{"address_id" => address_hash_string}) do
-    changeset =
-      SmartContract.changeset(
-        %SmartContract{address_hash: address_hash_string},
-        %{}
-      )
+    if Chain.smart_contract_verified?(address_hash_string) do
+      redirect(conn, to: address_path(conn, :show, address_hash_string))
+    else
+      changeset =
+        SmartContract.changeset(
+          %SmartContract{address_hash: address_hash_string},
+          %{}
+        )
 
-    compiler_versions =
-      case CompilerVersion.fetch_versions() do
-        {:ok, compiler_versions} ->
-          compiler_versions
+      compiler_versions =
+        case CompilerVersion.fetch_versions() do
+          {:ok, compiler_versions} ->
+            compiler_versions
 
-        {:error, _} ->
-          []
-      end
+          {:error, _} ->
+            []
+        end
 
-    render(conn, "new.html",
-      changeset: changeset,
-      compiler_versions: compiler_versions,
-      evm_versions: CodeCompiler.allowed_evm_versions(),
-      address_hash: address_hash_string
-    )
+      render(conn, "new.html",
+        changeset: changeset,
+        compiler_versions: compiler_versions,
+        evm_versions: CodeCompiler.allowed_evm_versions(),
+        address_hash: address_hash_string
+      )
+    end
   end
 
   def create(

apps/block_scout_web/lib/block_scout_web/controllers/address_contract_verification_via_flattened_code_controller.ex

@@ -1,31 +1,36 @@
 defmodule BlockScoutWeb.AddressContractVerificationViaFlattenedCodeController do
   use BlockScoutWeb, :controller
 
+  alias Explorer.Chain
   alias Explorer.Chain.SmartContract
   alias Explorer.SmartContract.{PublisherWorker, Solidity.CodeCompiler, Solidity.CompilerVersion}
 
   def new(conn, %{"address_id" => address_hash_string}) do
-    changeset =
-      SmartContract.changeset(
-        %SmartContract{address_hash: address_hash_string},
-        %{}
+    if Chain.smart_contract_verified?(address_hash_string) do
+      redirect(conn, to: address_path(conn, :show, address_hash_string))
+    else
+      changeset =
+        SmartContract.changeset(
+          %SmartContract{address_hash: address_hash_string},
+          %{}
+        )
+
+      compiler_versions =
+        case CompilerVersion.fetch_versions() do
+          {:ok, compiler_versions} ->
+            compiler_versions
+
+          {:error, _} ->
+            []
+        end
+
+      render(conn, "new.html",
+        changeset: changeset,
+        compiler_versions: compiler_versions,
+        evm_versions: CodeCompiler.allowed_evm_versions(),
+        address_hash: address_hash_string
       )
-
-    compiler_versions =
-      case CompilerVersion.fetch_versions() do
-        {:ok, compiler_versions} ->
-          compiler_versions
-
-        {:error, _} ->
-          []
-      end
-
-    render(conn, "new.html",
-      changeset: changeset,
-      compiler_versions: compiler_versions,
-      evm_versions: CodeCompiler.allowed_evm_versions(),
-      address_hash: address_hash_string
-    )
+    end
   end
 
   def create(

apps/block_scout_web/lib/block_scout_web/controllers/address_contract_verification_via_json_controller.ex

@@ -2,23 +2,28 @@ defmodule BlockScoutWeb.AddressContractVerificationViaJsonController do
   use BlockScoutWeb, :controller
 
   alias BlockScoutWeb.AddressContractVerificationController, as: VerificationController
+  alias Explorer.Chain
   alias Explorer.Chain.SmartContract
   alias Explorer.ThirdPartyIntegrations.Sourcify
 
   def new(conn, %{"address_id" => address_hash_string}) do
-    case Sourcify.check_by_address(address_hash_string) do
-      {:ok, _verified_status} ->
-        VerificationController.get_metadata_and_publish(address_hash_string, conn)
-        redirect(conn, to: address_path(conn, :show, address_hash_string))
+    if Chain.smart_contract_verified?(address_hash_string) do
+      redirect(conn, to: address_path(conn, :show, address_hash_string))
+    else
+      case Sourcify.check_by_address(address_hash_string) do
+        {:ok, _verified_status} ->
+          VerificationController.get_metadata_and_publish(address_hash_string, conn)
+          redirect(conn, to: address_path(conn, :show, address_hash_string))
 
-      _ ->
-        changeset =
-          SmartContract.changeset(
-            %SmartContract{address_hash: address_hash_string},
-            %{}
-          )
+        _ ->
+          changeset =
+            SmartContract.changeset(
+              %SmartContract{address_hash: address_hash_string},
+              %{}
+            )
 
-        render(conn, "new.html", changeset: changeset, address_hash: address_hash_string)
+          render(conn, "new.html", changeset: changeset, address_hash: address_hash_string)
+      end
     end
   end
 end