support exception rules in the custom filters box of brave://adblock

DEPS

@@ -1,7 +1,7 @@
 use_relative_paths = True
 
 deps = {
-  "vendor/adblock_rust_ffi": "https://github.com/brave/adblock-rust-ffi.git@8c5103fd864e23cb10e0a8e0ec1169bc6f6246bf",
+  "vendor/adblock_rust_ffi": "https://github.com/brave/adblock-rust-ffi.git@31c37afa3e9b777257502fdacd0944c41ab12de4",
   "vendor/extension-whitelist": "https://github.com/brave/extension-whitelist.git@b4d059c73042cacf3a5e9156d4b1698e7bc18678",
   "vendor/hashset-cpp": "https://github.com/brave/hashset-cpp.git@6eab0271d014ff09bd9f38abe1e0c117e13e9aa9",
   "vendor/requests": "https://github.com/kennethreitz/requests@e4d59bedfd3c7f4f254f4f5d036587bcd8152458",

browser/net/brave_ad_block_tp_network_delegate_helper.cc

@@ -57,13 +57,15 @@ content::WebContents* GetWebContents(int render_process_id,
 void ShouldBlockAdOnTaskRunner(std::shared_ptr<BraveRequestInfo> ctx,
                                base::Optional<std::string> canonical_name) {
   bool did_match_exception = false;
+  bool did_match_important = false;
   if (!ctx->initiator_url.is_valid()) {
     return;
   }
   std::string source_host = ctx->initiator_url.host();
   if (!g_brave_browser_process->ad_block_service()->ShouldStartRequest(
           ctx->request_url, ctx->resource_type, source_host,
-          &did_match_exception, &ctx->mock_data_url)) {
+          &did_match_exception, &did_match_important, &ctx->mock_data_url,
+          false, false)) {
     ctx->blocked_by = kAdBlocked;
   } else if (!did_match_exception && canonical_name.has_value() &&
              ctx->request_url.host() != *canonical_name &&
@@ -76,7 +78,8 @@ void ShouldBlockAdOnTaskRunner(std::shared_ptr<BraveRequestInfo> ctx,
 
     if (!g_brave_browser_process->ad_block_service()->ShouldStartRequest(
             canonical_url, ctx->resource_type, source_host,
-            &did_match_exception, &ctx->mock_data_url)) {
+            &did_match_exception, &did_match_important, &ctx->mock_data_url,
+            false, false)) {
       ctx->blocked_by = kAdBlocked;
     }
   }

components/brave_shields/browser/ad_block_base_service.cc

@@ -21,7 +21,7 @@
 #include "brave/common/pref_names.h"
 #include "brave/components/brave_component_updater/browser/dat_file_util.h"
 #include "brave/components/brave_shields/common/brave_shield_constants.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 #include "components/prefs/pref_service.h"
 #include "content/public/browser/browser_task_traits.h"
 #include "content/public/browser/browser_thread.h"
@@ -118,7 +118,10 @@ bool AdBlockBaseService::ShouldStartRequest(
     blink::mojom::ResourceType resource_type,
     const std::string& tab_host,
     bool* did_match_exception,
-    std::string* mock_data_url) {
+    bool* did_match_important,
+    std::string* mock_data_url,
+    bool previously_matched_rule,
+    bool previously_matched_exception) {
   DCHECK(GetTaskRunner()->RunsTasksInCurrentSequence());
 
   // Determine third-party here so the library doesn't need to figure it out.
@@ -128,27 +131,20 @@ bool AdBlockBaseService::ShouldStartRequest(
       url,
       url::Origin::CreateFromNormalizedTuple("https", tab_host.c_str(), 80),
       INCLUDE_PRIVATE_REGISTRIES);
-  bool saved_from_exception;
-  if (ad_block_client_->matches(url.spec(), url.host(), tab_host,
-                                is_third_party,
-                                ResourceTypeToString(resource_type),
-                                &saved_from_exception, mock_data_url)) {
-    // We'd only possibly match an exception filter if we're returning true.
-    if (did_match_exception) {
-      *did_match_exception = false;
-    }
-    // LOG(ERROR) << "AdBlockBaseService::ShouldStartRequest(), host: "
-    //  << tab_host
-    //  << ", resource type: " << resource_type
-    //  << ", url.spec(): " << url.spec();
-    return false;
-  }
+  bool matched_exception_here;
+  bool matched = ad_block_client_->matches(
+      url.spec(), url.host(), tab_host, is_third_party,
+      ResourceTypeToString(resource_type), &matched_exception_here,
+      did_match_important, mock_data_url, previously_matched_rule,
+      previously_matched_exception);
 
-  if (did_match_exception) {
-    *did_match_exception = saved_from_exception;
-  }
+  *did_match_exception |= matched_exception_here;
 
-  return true;
+  // LOG(ERROR) << "AdBlockBaseService::ShouldStartRequest(), host: "
+  //  << tab_host
+  //  << ", resource type: " << resource_type
+  //  << ", url.spec(): " << url.spec();
+  return !matched;
 }
 
 void AdBlockBaseService::EnableTag(const std::string& tag, bool enabled) {

components/brave_shields/browser/ad_block_base_service.h

@@ -44,7 +44,10 @@ class AdBlockBaseService : public BaseBraveShieldsService {
                           blink::mojom::ResourceType resource_type,
                           const std::string& tab_host,
                           bool* did_match_exception,
-                          std::string* mock_data_url) override;
+                          bool* did_match_important,
+                          std::string* mock_data_url,
+                          bool previously_matched_rule,
+                          bool previously_matched_exception) override;
   void AddResources(const std::string& resources);
   void EnableTag(const std::string& tag, bool enabled);
   bool TagExists(const std::string& tag);

components/brave_shields/browser/ad_block_custom_filters_service.cc

@@ -9,7 +9,7 @@
 #include "brave/browser/brave_browser_process_impl.h"
 #include "brave/common/pref_names.h"
 #include "brave/components/brave_shields/browser/ad_block_service.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 #include "components/prefs/pref_service.h"
 #include "content/public/browser/browser_thread.h"
 

components/brave_shields/browser/ad_block_regional_service.cc

@@ -23,7 +23,7 @@
 #include "brave/components/brave_shields/browser/ad_block_regional_service_manager.h"
 #include "brave/components/brave_shields/browser/ad_block_service.h"
 #include "brave/components/brave_shields/browser/ad_block_service_helper.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 #include "components/prefs/pref_service.h"
 
 namespace brave_shields {

components/brave_shields/browser/ad_block_regional_service.h

@@ -14,7 +14,7 @@
 
 #include "base/files/file_path.h"
 #include "brave/components/brave_shields/browser/ad_block_base_service.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 
 class AdBlockServiceTest;
 

components/brave_shields/browser/ad_block_regional_service_manager.cc

@@ -17,7 +17,7 @@
 #include "brave/components/brave_shields/browser/ad_block_regional_service.h"
 #include "brave/components/brave_shields/browser/ad_block_service.h"
 #include "brave/components/brave_shields/browser/ad_block_service_helper.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 #include "components/prefs/pref_service.h"
 #include "components/prefs/scoped_user_pref_update.h"
 #include "content/public/browser/browser_task_traits.h"
@@ -127,18 +127,26 @@ bool AdBlockRegionalServiceManager::ShouldStartRequest(
     const GURL& url,
     blink::mojom::ResourceType resource_type,
     const std::string& tab_host,
-    bool* matching_exception_filter,
-    std::string* mock_data_url) {
+    bool* did_match_exception,
+    bool* did_match_important,
+    std::string* mock_data_url,
+    bool previously_matched_rule,
+    bool previously_matched_exception) {
   base::AutoLock lock(regional_services_lock_);
+
   for (const auto& regional_service : regional_services_) {
-    if (!regional_service.second->ShouldStartRequest(
-            url, resource_type, tab_host, matching_exception_filter,
-            mock_data_url)) {
+    bool matched = !regional_service.second->ShouldStartRequest(
+        url, resource_type, tab_host, did_match_exception, did_match_important,
+        mock_data_url, previously_matched_rule, previously_matched_exception);
+    if (did_match_important && *did_match_important) {
       return false;
     }
-    if (matching_exception_filter && *matching_exception_filter) {
-      return true;
-    }
+    previously_matched_rule |= matched;
+    previously_matched_exception |= *did_match_exception;
+  }
+
+  if (previously_matched_rule && !previously_matched_exception) {
+    return false;
   }
 
   return true;

components/brave_shields/browser/ad_block_regional_service_manager.h

@@ -17,7 +17,7 @@
 #include "base/synchronization/lock.h"
 #include "base/values.h"
 #include "brave/components/brave_component_updater/browser/brave_component.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 #include "third_party/blink/public/mojom/loader/resource_load_info.mojom-shared.h"
 #include "url/gurl.h"
 
@@ -50,8 +50,11 @@ class AdBlockRegionalServiceManager {
   bool ShouldStartRequest(const GURL& url,
                           blink::mojom::ResourceType resource_type,
                           const std::string& tab_host,
-                          bool* matching_exception_filter,
-                          std::string* mock_data_url);
+                          bool* did_match_exception,
+                          bool* did_match_important,
+                          std::string* mock_data_url,
+                          bool previously_matched_rule,
+                          bool previously_matched_exception);
   void EnableTag(const std::string& tag, bool enabled);
   void AddResources(const std::string& resources);
   void EnableFilterList(const std::string& uuid, bool enabled);

components/brave_shields/browser/ad_block_regional_service_unittest.cc

@@ -4,7 +4,7 @@
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "brave/components/brave_shields/browser/ad_block_service_helper.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 TEST(AdBlockRegionalServiceTest, UserModelLanguages) {

components/brave_shields/browser/ad_block_service.cc

@@ -23,7 +23,7 @@
 #include "brave/components/brave_shields/browser/ad_block_regional_service_manager.h"
 #include "brave/components/brave_shields/browser/ad_block_service_helper.h"
 #include "brave/components/brave_shields/common/brave_shield_constants.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
@@ -77,30 +77,39 @@ bool AdBlockService::ShouldStartRequest(
     blink::mojom::ResourceType resource_type,
     const std::string& tab_host,
     bool* did_match_exception,
-    std::string* mock_data_url) {
-
-  if (!AdBlockBaseService::ShouldStartRequest(
-          url, resource_type, tab_host, did_match_exception, mock_data_url)) {
+    bool* did_match_important,
+    std::string* mock_data_url,
+    bool previously_matched_rule,
+    bool previously_matched_exception) {
+  bool matched = !AdBlockBaseService::ShouldStartRequest(
+      url, resource_type, tab_host, did_match_exception, did_match_important,
+      mock_data_url, previously_matched_rule, previously_matched_exception);
+  if (did_match_important && *did_match_important) {
     return false;
   }
-  if (did_match_exception && *did_match_exception) {
-    return true;
-  }
+  previously_matched_rule |= matched;
+  previously_matched_exception |= *did_match_exception;
 
-  if (!regional_service_manager()->ShouldStartRequest(
-          url, resource_type, tab_host, did_match_exception, mock_data_url)) {
+  matched = !regional_service_manager()->ShouldStartRequest(
+      url, resource_type, tab_host, did_match_exception, did_match_important,
+      mock_data_url, previously_matched_rule, previously_matched_exception);
+  if (did_match_important && *did_match_important) {
     return false;
   }
-  if (did_match_exception && *did_match_exception) {
-    return true;
-  }
+  previously_matched_rule |= matched;
+  previously_matched_exception |= *did_match_exception;
 
-  if (!custom_filters_service()->ShouldStartRequest(
-        url, resource_type, tab_host, did_match_exception, mock_data_url)) {
+  matched = !custom_filters_service()->ShouldStartRequest(
+      url, resource_type, tab_host, did_match_exception, did_match_important,
+      mock_data_url, previously_matched_rule, previously_matched_exception);
+  if (did_match_important && *did_match_important) {
     return false;
   }
-  if (did_match_exception && *did_match_exception) {
-    return true;
+  previously_matched_rule |= matched;
+  previously_matched_exception |= *did_match_exception;
+
+  if (previously_matched_rule && !previously_matched_exception) {
+    return false;
   }
 
   return true;

components/brave_shields/browser/ad_block_service.h

@@ -50,7 +50,10 @@ class AdBlockService : public AdBlockBaseService {
                           blink::mojom::ResourceType resource_type,
                           const std::string& tab_host,
                           bool* did_match_exception,
-                          std::string* mock_data_url) override;
+                          bool* did_match_important,
+                          std::string* mock_data_url,
+                          bool previously_matched_rule,
+                          bool previously_matched_exception) override;
 
   AdBlockRegionalServiceManager* regional_service_manager();
   AdBlockCustomFiltersService* custom_filters_service();

components/brave_shields/browser/ad_block_service_helper.h

@@ -11,7 +11,7 @@
 #include <vector>
 
 #include "base/values.h"
-#include "brave/vendor/adblock_rust_ffi/src/wrapper.hpp"
+#include "brave/vendor/adblock_rust_ffi/src/wrapper.h"
 
 namespace brave_shields {
 

components/brave_shields/browser/base_brave_shields_service.cc

@@ -54,9 +54,12 @@ bool BaseBraveShieldsService::ShouldStartRequest(
     blink::mojom::ResourceType resource_type,
     const std::string& tab_host,
     bool* did_match_exception,
-    std::string* mock_data_url) {
-  if (did_match_exception) {
-    *did_match_exception = false;
+    bool* did_match_important,
+    std::string* mock_data_url,
+    bool previously_matched_rule,
+    bool previously_matched_exception) {
+  if (previously_matched_rule && !previously_matched_exception) {
+    return false;
   }
   return true;
 }

components/brave_shields/browser/base_brave_shields_service.h

@@ -35,7 +35,10 @@ class BaseBraveShieldsService : public BraveComponent {
                                   blink::mojom::ResourceType resource_type,
                                   const std::string& tab_host,
                                   bool* did_match_exception,
-                                  std::string* mock_data_url);
+                                  bool* did_match_important,
+                                  std::string* mock_data_url,
+                                  bool previously_matched_rule,
+                                  bool previously_matched_exception);
 
  protected:
   virtual bool Init() = 0;