add backend for CDP validation

graphql/schema/schema.graphql

@@ -247,6 +247,9 @@ type Query {
   ): Directory!
   validateStashBoxCredentials(input: StashBoxInput!): StashBoxValidationResult!
 
+  # Validate remote CDP path
+  ValidateCDPPath: CDPValidationResult!
+
   # System status
   systemStatus: SystemStatus!
 

graphql/schema/types/config.graphql

@@ -626,3 +626,8 @@ type StashBoxValidationResult {
   valid: Boolean!
   status: String!
 }
+
+type CDPValidationResult {
+  valid: Boolean!
+  status: String!
+}

internal/api/resolver_query_configuration.go

@@ -9,6 +9,7 @@ import (
 	"github.com/stashapp/stash/internal/manager/config"
 	"github.com/stashapp/stash/pkg/fsutil"
 	"github.com/stashapp/stash/pkg/models"
+	"github.com/stashapp/stash/pkg/scraper"
 	"golang.org/x/text/collate"
 )
 
@@ -285,3 +286,17 @@ func (r *queryResolver) ValidateStashBoxCredentials(ctx context.Context, input c
 
 	return &result, nil
 }
+
+func (r *queryResolver) ValidateCDPPath(ctx context.Context) (*CDPValidationResult, error) {
+	err := scraper.TestRemoteCDP(config.GetInstance())
+	if err == nil {
+		return &CDPValidationResult{
+			Valid:  true,
+			Status: "Successfully validated CDP path",
+		}, nil
+	}
+	return &CDPValidationResult{
+		Valid:  false,
+		Status: err.Error(),
+	}, nil
+}

pkg/scraper/url.go

@@ -329,3 +329,19 @@ func splitProxyAuth(proxyUrl string) (string, string, string) {
 
 	return proxyUrl, "", ""
 }
+
+func TestRemoteCDP(globalConfig GlobalConfig) error {
+	cdpPath := globalConfig.GetScraperCDPPath()
+	if cdpPath == "" {
+		return fmt.Errorf("CDP path is empty")
+	}
+	if !isCDPPathHTTP(globalConfig) {
+		// unable to test non-http CDP
+		return fmt.Errorf("Unable to test non-http CDP paths")
+	}
+	_, err := getRemoteCDPWSAddress(context.Background(), cdpPath)
+	if err != nil {
+		return fmt.Errorf("Failed to get remote CDP websocket address: %v", err)
+	}
+	return nil
+}

ui/v2.5/graphql/queries/settings/config.graphql

@@ -18,3 +18,10 @@ query ValidateStashBox($input: StashBoxInput!) {
     status
   }
 }
+
+query ValidateCDP {
+  ValidateCDPPath {
+    valid
+    status
+  }
+}