MCP Toolbox for Databases

// Copyright 2025 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 http import ( "context" "crypto/tls" "fmt" "net/http" "net/url" "time" "github.com/goccy/go-yaml" "github.com/googleapis/genai-toolbox/internal/sources" "github.com/googleapis/genai-toolbox/internal/util" "go.opentelemetry.io/otel/trace" ) const SourceKind string = "http" // validate interface var _ sources.SourceConfig = Config{} func init() { if !sources.Register(SourceKind, newConfig) { panic(fmt.Sprintf("source kind %q already registered", SourceKind)) } } func newConfig(ctx context.Context, name string, decoder *yaml.Decoder) (sources.SourceConfig, error) { actual := Config{Name: name, Timeout: "30s"} // Default timeout if err := decoder.DecodeContext(ctx, &actual); err != nil { return nil, err } return actual, nil } type Config struct { Name string `yaml:"name" validate:"required"` Kind string `yaml:"kind" validate:"required"` BaseURL string `yaml:"baseUrl"` Timeout string `yaml:"timeout"` DefaultHeaders map[string]string `yaml:"headers"` QueryParams map[string]string `yaml:"queryParams"` DisableSslVerification bool `yaml:"disableSslVerification"` } func (r Config) SourceConfigKind() string { return SourceKind } // Initialize initializes an HTTP Source instance. func (r Config) Initialize(ctx context.Context, tracer trace.Tracer) (sources.Source, error) { duration, err := time.ParseDuration(r.Timeout) if err != nil { return nil, fmt.Errorf("unable to parse Timeout string as time.Duration: %s", err) } tr := &http.Transport{} logger, err := util.LoggerFromContext(ctx) if err != nil { return nil, fmt.Errorf("unable to get logger from ctx: %s", err) } if r.DisableSslVerification { tr.TLSClientConfig = &tls.Config{ InsecureSkipVerify: true, } logger.WarnContext(ctx, "Insecure HTTP is enabled for HTTP source %s. TLS certificate verification is skipped.\n", r.Name) } client := http.Client{ Timeout: duration, Transport: tr, } // Validate BaseURL _, err = url.ParseRequestURI(r.BaseURL) if err != nil { return nil, fmt.Errorf("failed to parse BaseUrl %v", err) } ua, err := util.UserAgentFromContext(ctx) if err != nil { fmt.Printf("Error in User Agent retrieval: %s", err) } if r.DefaultHeaders == nil { r.DefaultHeaders = make(map[string]string) } if existingUA, ok := r.DefaultHeaders["User-Agent"]; ok { ua = ua + " " + existingUA } r.DefaultHeaders["User-Agent"] = ua s := &Source{ Config: r, client: &client, } return s, nil } var _ sources.Source = &Source{} type Source struct { Config client *http.Client } func (s *Source) SourceKind() string { return SourceKind } func (s *Source) ToConfig() sources.SourceConfig { return s.Config } func (s *Source) HttpDefaultHeaders() map[string]string { return s.DefaultHeaders } func (s *Source) HttpBaseURL() string { return s.BaseURL } func (s *Source) HttpQueryParams() map[string]string { return s.QueryParams } func (s *Source) Client() *http.Client { return s.client }