Added test.

browser/brave_shields/ad_block_service_browsertest.cc

@@ -19,6 +19,7 @@
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/task/sequenced_task_runner.h"
+#include "base/test/bind.h"
 #include "base/test/scoped_feature_list.h"
 #include "base/test/thread_test_helper.h"
 #include "base/threading/thread_restrictions.h"
@@ -238,6 +239,32 @@ base::FilePath AdBlockServiceTest::MakeTestDataCopy(
   return temp_path.Append(source_location.BaseName());
 }
 
+brave_shields::AdBlockResourceProvider*
+AdBlockServiceTest::IntsallDefaultAdBlockResources(
+    const base::FilePath& component_path) {
+  brave_shields::AdBlockService* service =
+      g_brave_browser_process->ad_block_service();
+  auto* resource_provider =
+      static_cast<brave_shields::AdBlockDefaultResourceProvider*>(
+          service->resource_provider());
+  base::RunLoop run_loop;
+  base::ThreadPool::PostTaskAndReplyWithResult(
+      FROM_HERE, {base::MayBlock()},
+      base::BindLambdaForTesting([&component_path]() {
+        return component_updater::CreateComponentContentsAccessor(
+            true, component_path);
+      }),
+      base::BindLambdaForTesting(
+          [resource_provider, &run_loop](
+              scoped_refptr<brave_component_updater::ComponentContentsAccessor>
+                  accessor) {
+            resource_provider->OnComponentReady(std::move(accessor));
+            run_loop.Quit();
+          }));
+  run_loop.Run();
+  return resource_provider;
+}
+
 void AdBlockServiceTest::UpdateAdBlockResources(const std::string& resources) {
   auto component_path = MakeFileInTempDir("resources.json", resources);
 
@@ -1595,6 +1622,43 @@ IN_PROC_BROWSER_TEST_F(Default1pBlockingFlagDisabledTest, Custom1pBlocking) {
   EXPECT_EQ(profile()->GetPrefs()->GetUint64(kAdsBlocked), 2ULL);
 }
 
+#if BUILDFLAG(ENABLE_EXTENSIONS)
+#define MAYBE_SafeResourcesComponentAccess SafeResourcesComponentAccess
+#else
+#define MAYBE_SafeResourcesComponentAccess DISABLED_SafeResourcesComponentAccess
+#endif
+IN_PROC_BROWSER_TEST_F(AdBlockServiceTest, MAYBE_SafeResourcesComponentAccess) {
+  const auto components_path =
+      GetTestDataDir().AppendASCII("adblock-components");
+  {
+    auto* resource_provider = IntsallDefaultAdBlockResources(
+        components_path.AppendASCII("resources_ok"));
+    base::RunLoop run_loop;
+    resource_provider->LoadResources(
+        base::BindLambdaForTesting([&run_loop](const std::string& resources) {
+          constexpr const char kExpectedResources[] =
+              "[{\"name\":\"brave-fix.js\",\"aliases\":[],\"kind\":{\"mime\":"
+              "\"application/javascript\"}]";
+          EXPECT_EQ(kExpectedResources, resources);
+          run_loop.Quit();
+        }));
+    run_loop.Run();
+  }
+
+  {
+    auto* resource_provider = IntsallDefaultAdBlockResources(
+        components_path.AppendASCII("resources_corrupted"));
+    base::RunLoop run_loop;
+    resource_provider->LoadResources(
+        base::BindLambdaForTesting([&run_loop](const std::string& resources) {
+          constexpr const char kExpectedResources[] = "[]";
+          EXPECT_EQ(kExpectedResources, resources);
+          run_loop.Quit();
+        }));
+    run_loop.Run();
+  }
+}
+
 // Load a page with a script which uses a redirect data URL.
 IN_PROC_BROWSER_TEST_F(AdBlockServiceTest, RedirectRulesAreRespected) {
   UpdateAdBlockResources(R"(

browser/brave_shields/ad_block_service_browsertest.h

@@ -22,6 +22,7 @@ class HostContentSettingsMap;
 
 namespace brave_shields {
 class AdBlockService;
+class AdBlockResourceProvider;
 class FilterListCatalogEntry;
 }  // namespace brave_shields
 
@@ -47,6 +48,8 @@ class AdBlockServiceTest : public PlatformBrowserTest {
   void AddNewRules(const std::string& rules,
                    uint8_t permission_mask = 0,
                    bool first_party_protections = false);
+  brave_shields::AdBlockResourceProvider* IntsallDefaultAdBlockResources(
+      const base::FilePath& component_path);
   void UpdateAdBlockResources(const std::string& resources);
   void UpdateAdBlockInstanceWithRules(const std::string& rules);
   void UpdateCustomAdBlockInstanceWithRules(const std::string& rules);

test/data/adblock-components/resources_corrupted/_metadata/verified_contents.json

@@ -0,0 +1 @@
+[{"description":"treehash per file","signed_content":{"payload":"eyJjb250ZW50X2hhc2hlcyI6W3siYmxvY2tfc2l6ZSI6NDA5NiwiZGlnZXN0Ijoic2hhMjU2IiwiZmlsZXMiOlt7InBhdGgiOiJyZXNvdXJjZXMuanNvbiIsInJvb3RfaGFzaCI6Ik9oM3pERVJjT3U0NWE2N21WQkFqeWcyNzEyUGxvek04UWtBeVNnZzVUMlkifV0sImZvcm1hdCI6InRyZWVoYXNoIiwiaGFzaF9ibG9ja19zaXplIjo0MDk2fV0sIml0ZW1faWQiOiJtZmRkaWJtYmxtYmNjcGFkZm5kZ2FraW9wbW1oZWJvcCIsIml0ZW1fdmVyc2lvbiI6IjEuMC4xMDMiLCJwcm90b2NvbF92ZXJzaW9uIjoxfQ","signatures":[{"protected":"eyJhbGciOiJSUzI1NiJ9","header":{"kid":"webstore"},"signature":"gxnzPORvPtzdFbXbaOD-MOa93ED7LFNA8bAswg7dCXBXe9CP5Loyjsj3ch1XxVSzCfyLQ-lai0LN7TlTjxTZocbXD7MRfwo8hR9Qn2iyTjc8QswSiWl_F0tuV7fg6b6oTiX7Cc7-EPoyngWAA9nX7_HqjfG8XspnoEWs_-lER-DPDCX7sbWdSZuZaPoEOgDaujILJgcYr264n0nZNzc213wVzKxwfQeZAPUZAnTofulO03QQquKuzjZURS8ZZdSW2vlc72duxylo3Xr40lERk60VGv35ZwYW1UZpt8PZH_XOame3vfyBrbrxylRySu7nAQ8GuyEuDP8ucIAHUpf5Hg"}]}}]

test/data/adblock-components/resources_corrupted/resources.json

@@ -0,0 +1 @@
+[{"name":"malware.js","aliases":[],"kind":{"mime":"application/javascript"}]

test/data/adblock-components/resources_ok/_metadata/verified_contents.json

@@ -0,0 +1 @@
+[{"description":"treehash per file","signed_content":{"payload":"eyJjb250ZW50X2hhc2hlcyI6W3siYmxvY2tfc2l6ZSI6NDA5NiwiZGlnZXN0Ijoic2hhMjU2IiwiZmlsZXMiOlt7InBhdGgiOiJyZXNvdXJjZXMuanNvbiIsInJvb3RfaGFzaCI6Ik9oM3pERVJjT3U0NWE2N21WQkFqeWcyNzEyUGxvek04UWtBeVNnZzVUMlkifV0sImZvcm1hdCI6InRyZWVoYXNoIiwiaGFzaF9ibG9ja19zaXplIjo0MDk2fV0sIml0ZW1faWQiOiJtZmRkaWJtYmxtYmNjcGFkZm5kZ2FraW9wbW1oZWJvcCIsIml0ZW1fdmVyc2lvbiI6IjEuMC4xMDMiLCJwcm90b2NvbF92ZXJzaW9uIjoxfQ","signatures":[{"protected":"eyJhbGciOiJSUzI1NiJ9","header":{"kid":"webstore"},"signature":"gxnzPORvPtzdFbXbaOD-MOa93ED7LFNA8bAswg7dCXBXe9CP5Loyjsj3ch1XxVSzCfyLQ-lai0LN7TlTjxTZocbXD7MRfwo8hR9Qn2iyTjc8QswSiWl_F0tuV7fg6b6oTiX7Cc7-EPoyngWAA9nX7_HqjfG8XspnoEWs_-lER-DPDCX7sbWdSZuZaPoEOgDaujILJgcYr264n0nZNzc213wVzKxwfQeZAPUZAnTofulO03QQquKuzjZURS8ZZdSW2vlc72duxylo3Xr40lERk60VGv35ZwYW1UZpt8PZH_XOame3vfyBrbrxylRySu7nAQ8GuyEuDP8ucIAHUpf5Hg"}]}}]

test/data/adblock-components/resources_ok/resources.json

@@ -0,0 +1 @@
+[{"name":"brave-fix.js","aliases":[],"kind":{"mime":"application/javascript"}]