chore: import upstream snapshot with attribution

internal/tools/cloudstorage/cloudstorageuploadobject/cloudstorageuploadobject.go

@@ -0,0 +1,139 @@
+// Copyright 2026 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cloudstorageuploadobject
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	yaml "github.com/goccy/go-yaml"
+	"github.com/googleapis/mcp-toolbox/internal/tools"
+	"github.com/googleapis/mcp-toolbox/internal/tools/cloudstorage/cloudstoragecommon"
+	"github.com/googleapis/mcp-toolbox/internal/util"
+	"github.com/googleapis/mcp-toolbox/internal/util/parameters"
+)
+
+const resourceType string = "cloud-storage-upload-object"
+
+const (
+	bucketKey      = "bucket"
+	objectKey      = "object"
+	sourceKey      = "source"
+	contentTypeKey = "content_type"
+)
+
+func init() {
+	if !tools.Register(resourceType, newConfig) {
+		panic(fmt.Sprintf("tool type %q already registered", resourceType))
+	}
+}
+
+func newConfig(ctx context.Context, name string, decoder *yaml.Decoder) (tools.ToolConfig, error) {
+	actual := Config{ConfigBase: tools.ConfigBase{Name: name}}
+	if err := decoder.DecodeContext(ctx, &actual); err != nil {
+		return nil, err
+	}
+	return actual, nil
+}
+
+type compatibleSource interface {
+	UploadObject(ctx context.Context, bucket, object, source, contentType string) (map[string]any, error)
+}
+
+type Config struct {
+	tools.ConfigBase `yaml:",inline"`
+	Type             string                 `yaml:"type" validate:"required"`
+	Source           string                 `yaml:"source" validate:"required"`
+	Annotations      *tools.ToolAnnotations `yaml:"annotations,omitempty"`
+	Bucket           *string                `yaml:"bucket,omitempty"`
+}
+
+// validate interface
+var _ tools.ToolConfig = Config{}
+
+func (cfg Config) ToolConfigType() string {
+	return resourceType
+}
+
+func (cfg Config) Initialize(context.Context) (tools.Tool, error) {
+	if cfg.Description == "" {
+		return nil, fmt.Errorf("description is required for tool %q", cfg.Name)
+	}
+	if cfg.Bucket != nil && *cfg.Bucket == "" {
+		return nil, fmt.Errorf("bucket cannot be empty for tool %q", cfg.Name)
+	}
+
+	objectParam := parameters.NewStringParameter(objectKey, "Full object name (path) within the bucket, e.g. 'path/to/file.txt'.")
+	sourceParam := parameters.NewStringParameter(sourceKey, "Absolute local filesystem path of the file to upload. Relative paths and paths containing '..' are rejected.")
+	contentTypeParam := parameters.NewStringParameter(contentTypeKey, "MIME type to record on the uploaded object. When empty, it is inferred from the source file's extension; if that fails, Cloud Storage auto-detects from the first 512 bytes of content.", parameters.WithStringDefault(""))
+	allParameters := parameters.Parameters{}
+	if cfg.Bucket == nil {
+		allParameters = append(allParameters, parameters.NewStringParameter(bucketKey, "Name of the Cloud Storage bucket to upload into."))
+	}
+	allParameters = append(allParameters, objectParam, sourceParam, contentTypeParam)
+
+	return Tool{
+		BaseTool: tools.NewBaseTool(
+			cfg,
+			tools.GetAnnotationsOrDefault(cfg.Annotations, tools.NewDestructiveAnnotations),
+			tools.Manifest{Description: cfg.Description, Parameters: allParameters.Manifest(), AuthRequired: cfg.AuthRequired},
+			allParameters,
+		),
+	}, nil
+}
+
+// validate interface
+var _ tools.Tool = Tool{}
+
+type Tool struct {
+	tools.BaseTool[Config]
+}
+
+func (t Tool) ToConfig() tools.ToolConfig {
+	return t.Cfg
+}
+
+func (t Tool) Invoke(ctx context.Context, resourceMgr tools.SourceProvider, params parameters.ParamValues, accessToken tools.AccessToken) (any, util.ToolboxError) {
+	source, err := tools.GetCompatibleSource[compatibleSource](resourceMgr, t.Cfg.Source, t.Cfg.Name, t.Cfg.Type)
+	if err != nil {
+		return nil, util.NewClientServerError("source used is not compatible with the tool", http.StatusInternalServerError, err)
+	}
+
+	mapParams := params.AsMap()
+	bucket := cloudstoragecommon.ResolveString(t.Cfg.Bucket, mapParams, bucketKey)
+	if bucket == "" {
+		return nil, util.NewAgentError(fmt.Sprintf("invalid or missing '%s' parameter; expected a non-empty string", bucketKey), nil)
+	}
+	object, ok := mapParams[objectKey].(string)
+	if !ok || object == "" {
+		return nil, util.NewAgentError(fmt.Sprintf("invalid or missing '%s' parameter; expected a non-empty string", objectKey), nil)
+	}
+	localSource, ok := mapParams[sourceKey].(string)
+	if !ok || localSource == "" {
+		return nil, util.NewAgentError(fmt.Sprintf("invalid or missing '%s' parameter; expected a non-empty string", sourceKey), nil)
+	}
+	cleanSource, pathErr := cloudstoragecommon.ValidateLocalPath(localSource)
+	if pathErr != nil {
+		return nil, util.NewAgentError(fmt.Sprintf("invalid '%s' parameter: %v", sourceKey, pathErr), pathErr)
+	}
+	contentType, _ := mapParams[contentTypeKey].(string)
+
+	resp, err := source.UploadObject(ctx, bucket, object, cleanSource, contentType)
+	if err != nil {
+		return nil, cloudstoragecommon.ProcessGCSError(err)
+	}
+	return resp, nil
+}