588 lines
21 KiB
Go
588 lines
21 KiB
Go
package protocol
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import (
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"strings"
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)
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type ManifestOperation struct {
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Method string `json:"method"`
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Path string `json:"path"`
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PathTemplate any `json:"pathTemplate,omitempty"`
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OriginPath bool `json:"originPath,omitempty"`
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ContentType string `json:"contentType,omitempty"`
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ContentTypeTemplate any `json:"contentTypeTemplate,omitempty"`
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Headers map[string]any `json:"headers,omitempty"`
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Query map[string]any `json:"query,omitempty"`
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Body any `json:"body,omitempty"`
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Fields map[string]string `json:"fields,omitempty"`
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Files []ManifestFilePart `json:"files,omitempty"`
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}
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type ManifestFilePart struct {
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Name string `json:"name"`
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Source any `json:"source"`
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Filename any `json:"filename,omitempty"`
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MIMEType any `json:"mimeType,omitempty"`
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}
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type ManifestResponse struct {
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TaskIDPaths []string `json:"taskIdPaths,omitempty"`
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StatusPaths []string `json:"statusPaths,omitempty"`
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ErrorPaths []string `json:"errorPaths,omitempty"`
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MessagePaths []string `json:"messagePaths,omitempty"`
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TextPaths []string `json:"textPaths,omitempty"`
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ReasoningPaths []string `json:"reasoningPaths,omitempty"`
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ResultURLPaths []string `json:"resultUrlPaths,omitempty"`
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ResultPaths []string `json:"resultPaths,omitempty"`
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ResultKind string `json:"resultKind,omitempty"`
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ResultEphemeral bool `json:"resultEphemeral,omitempty"`
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// BinaryPayload 表示 create 同步返回二进制媒体（如 /audio/speech 的音频流）。
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// 声明式解析会把整个响应体包装为对应能力的单个媒体结果，不做 JSON 路径提取。
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BinaryPayload bool `json:"binaryPayload,omitempty"`
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TaskID any `json:"taskId,omitempty"`
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Status any `json:"status,omitempty"`
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Message any `json:"message,omitempty"`
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Text any `json:"text,omitempty"`
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Reasoning any `json:"reasoning,omitempty"`
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Images any `json:"images,omitempty"`
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Videos any `json:"videos,omitempty"`
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Audios any `json:"audios,omitempty"`
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Usage any `json:"usage,omitempty"`
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}
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// ManifestAgentResponse describes the provider response shape for a
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// tool-capable text request. Tool call paths are resolved against each item in
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// ToolCallsPath.
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type ManifestAgentResponse struct {
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TextPaths []string `json:"textPaths,omitempty"`
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ReasoningPaths []string `json:"reasoningPaths,omitempty"`
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ToolCallsPath string `json:"toolCallsPath,omitempty"`
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ToolCallIDPaths []string `json:"toolCallIdPaths,omitempty"`
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ToolCallNamePaths []string `json:"toolCallNamePaths,omitempty"`
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ToolCallArgsPaths []string `json:"toolCallArgumentsPaths,omitempty"`
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ToolCallSignaturePaths []string `json:"toolCallThoughtSignaturePaths,omitempty"`
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}
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// AdapterResolver is used by the host to bind a shipped execution engine to a
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// manifest. Uploaded plugins must use the declarative path; host bindings are
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// reserved for manifests shipped with the application.
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type AdapterResolver func(string) (Adapter, bool)
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func LoadInstalledPlugin(data []byte, resolve AdapterResolver) (Adapter, error) {
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adapters, err := LoadInstalledProviders(data, resolve)
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if err != nil {
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return nil, err
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}
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if len(adapters) == 0 {
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return nil, fmt.Errorf("plugin does not provide an executable provider")
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}
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return adapters[0], nil
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}
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// LoadInstalledProviders loads every provider contribution from one plugin
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// package. The package remains the lifecycle and permission unit; providers
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// are separate execution entries in the runtime index.
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func LoadInstalledProviders(data []byte, resolve AdapterResolver) ([]Adapter, error) {
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manifest, err := decodeManifest(data)
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if err != nil {
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return nil, err
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}
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if strings.HasPrefix(strings.TrimSpace(manifest.Runtime.Backend), "host:") {
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if len(manifest.Contributes.Providers) != 1 {
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return nil, fmt.Errorf("host-backed plugin must declare exactly one provider")
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}
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if resolve == nil {
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return nil, fmt.Errorf("plugin %q requires a host execution engine", manifest.Metadata.ID)
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}
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name := strings.TrimPrefix(strings.TrimSpace(manifest.Runtime.Backend), "host:")
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adapter, ok := resolve(name)
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if !ok {
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return nil, fmt.Errorf("plugin host execution %q is unavailable", name)
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}
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if err := ValidateManifest(manifest); err != nil {
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return nil, err
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}
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if err := normalizeManifest(&manifest); err != nil {
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return nil, err
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}
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return []Adapter{metadataAdapter{metadata: manifest.Metadata, delegate: adapter}}, nil
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}
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if len(manifest.Contributes.Providers) == 0 {
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adapter, err := loadDeclarativeManifest(manifest)
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if err != nil {
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return nil, err
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}
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return []Adapter{adapter}, nil
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}
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result := make([]Adapter, 0, len(manifest.Contributes.Providers))
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for index := range manifest.Contributes.Providers {
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adapter, err := loadDeclarativeManifestProvider(manifest, index)
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if err != nil {
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return nil, err
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}
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result = append(result, adapter)
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}
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return result, nil
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}
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func validatePluginMetadata(metadata Metadata) error {
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if strings.TrimSpace(metadata.ID) == "" || strings.TrimSpace(metadata.Version) == "" || !validManifestIdentifier(metadata.ID) {
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return fmt.Errorf("protocol plugin metadata is invalid")
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}
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if len(metadata.Categories) == 0 || len(metadata.Scopes) == 0 {
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return fmt.Errorf("protocol plugin metadata requires categories and scopes")
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}
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for _, capability := range metadata.Categories {
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if capability != CapabilityText && capability != CapabilityImage && capability != CapabilityVideo && capability != CapabilityAudio {
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return fmt.Errorf("unsupported protocol capability %q", capability)
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}
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}
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for _, scope := range metadata.Scopes {
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switch scope {
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case SurfaceAdminSystemChannel, SurfaceUserCustomChannel, SurfaceCanvas, SurfaceCreation, SurfaceAgent:
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default:
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return fmt.Errorf("unsupported protocol scope %q", scope)
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}
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}
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return nil
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}
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type metadataAdapter struct {
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metadata Metadata
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delegate Adapter
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}
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func (a metadataAdapter) Metadata() Metadata { return a.metadata }
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func (a metadataAdapter) AgentAvailable() bool {
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capability, ok := a.delegate.(AgentCapability)
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return ok && capability.AgentAvailable()
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}
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func (a metadataAdapter) ResultAvailable() bool {
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capability, ok := a.delegate.(ResultCapability)
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return ok && capability.ResultAvailable()
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}
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func (a metadataAdapter) BuildCreate(ctx context.Context, c RequestContext) (RequestSpec, error) {
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return a.delegate.BuildCreate(ctx, c)
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}
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func (a metadataAdapter) ParseCreate(ctx context.Context, body []byte) (CreateResult, error) {
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return a.delegate.ParseCreate(ctx, body)
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}
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func (a metadataAdapter) BuildPoll(ctx context.Context, c PollContext) (RequestSpec, error) {
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return a.delegate.BuildPoll(ctx, c)
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}
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func (a metadataAdapter) ParsePoll(ctx context.Context, c PollContext, body []byte) (PollResult, error) {
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return a.delegate.ParsePoll(ctx, c, body)
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}
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func (a metadataAdapter) BuildCancel(ctx context.Context, c PollContext) (RequestSpec, error) {
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return a.delegate.BuildCancel(ctx, c)
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}
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func (a metadataAdapter) BuildResult(ctx context.Context, c PollContext) (RequestSpec, error) {
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adapter, ok := a.delegate.(ResultAdapter)
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if !ok {
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return RequestSpec{}, unavailable(a.metadata)
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}
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return adapter.BuildResult(ctx, c)
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}
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func (a metadataAdapter) BuildAgent(ctx context.Context, c AgentRequestContext) (RequestSpec, error) {
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adapter, ok := a.delegate.(AgentAdapter)
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if !ok {
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return RequestSpec{}, unavailable(a.metadata)
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}
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return adapter.BuildAgent(ctx, c)
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}
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func (a metadataAdapter) ParseAgent(ctx context.Context, body []byte) (AgentResult, error) {
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adapter, ok := a.delegate.(AgentAdapter)
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if !ok {
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return AgentResult{}, unavailable(a.metadata)
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}
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return adapter.ParseAgent(ctx, body)
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}
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func LoadManifest(data []byte) (Adapter, error) {
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manifest, err := decodeManifest(data)
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if err != nil {
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return nil, err
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}
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return loadDeclarativeManifest(manifest)
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}
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func decodeManifest(data []byte) (Manifest, error) {
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var manifest Manifest
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if err := json.Unmarshal(data, &manifest); err != nil {
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return Manifest{}, fmt.Errorf("decode plugin manifest: %w", err)
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}
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if err := ValidateManifest(manifest); err != nil {
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return Manifest{}, err
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}
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return manifest, nil
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}
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func loadDeclarativeManifest(manifest Manifest) (Adapter, error) {
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manifest.Runtime.Backend = "declarative"
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if err := normalizeManifest(&manifest); err != nil {
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return nil, err
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}
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return manifestAdapter{manifest: manifest}, nil
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}
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func loadDeclarativeManifestProvider(manifest Manifest, index int) (Adapter, error) {
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manifest.Runtime.Backend = "declarative"
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if err := normalizeManifestForProvider(&manifest, index); err != nil {
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return nil, err
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}
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return manifestAdapter{manifest: manifest}, nil
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}
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func ValidateManifest(manifest Manifest) error {
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seenSMS := map[string]bool{}
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for _, provider := range manifest.Contributes.SMSProviders {
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if !validManifestIdentifier(provider.ID) || strings.TrimSpace(provider.Label) == "" || seenSMS[provider.ID] {
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return fmt.Errorf("invalid or duplicate SMS provider contribution")
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}
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seenSMS[provider.ID] = true
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}
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if version := strings.TrimSpace(manifest.APIVersion); version != "yingce.plugin/v1" && version != "yingce.plugin/v2" {
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return fmt.Errorf("unsupported protocol manifest apiVersion %q", manifest.APIVersion)
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}
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if strings.TrimSpace(manifest.Metadata.ID) == "" || strings.TrimSpace(manifest.Metadata.Version) == "" {
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return fmt.Errorf("protocol manifest metadata requires id and version")
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}
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if strings.TrimSpace(manifest.Metadata.Name) == "" {
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return fmt.Errorf("protocol manifest metadata requires name")
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}
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if !validManifestIdentifier(manifest.Metadata.ID) {
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return fmt.Errorf("protocol manifest metadata id is invalid")
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}
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if len(manifest.Metadata.Name) > 160 || len(manifest.Metadata.Vendor) > 120 {
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return fmt.Errorf("protocol manifest metadata name or vendor is too long")
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}
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if len(manifest.Contributes.Providers) == 0 && !hasNonProviderContribution(manifest.Contributes) {
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return fmt.Errorf("plugin must declare at least one contribution")
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}
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if backend := strings.TrimSpace(manifest.Runtime.Backend); backend != "" && backend != "declarative" && backend != "rpc" && backend != "wasm" && backend != "trusted-backend" && !strings.HasPrefix(backend, "host:") {
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return fmt.Errorf("unsupported plugin backend %q", backend)
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}
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if len(manifest.Contributes.Providers) == 0 {
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return validatePaymentProviderContributions(manifest)
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}
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providerIDs := make(map[string]struct{}, len(manifest.Contributes.Providers))
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for index, provider := range manifest.Contributes.Providers {
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if strings.TrimSpace(provider.ID) == "" || strings.TrimSpace(provider.Label) == "" || !validManifestIdentifier(provider.ID) {
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return fmt.Errorf("provider contribution %d requires a valid id and label", index)
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}
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if _, exists := providerIDs[provider.ID]; exists {
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return fmt.Errorf("duplicate provider contribution %q", provider.ID)
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}
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providerIDs[provider.ID] = struct{}{}
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if len(provider.Capabilities) == 0 || len(provider.Scopes) == 0 {
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return fmt.Errorf("provider contribution %q requires capabilities and scopes", provider.ID)
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}
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for _, capability := range provider.Capabilities {
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if capability != CapabilityText && capability != CapabilityImage && capability != CapabilityVideo && capability != CapabilityAudio {
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return fmt.Errorf("unsupported protocol capability %q", capability)
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}
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}
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for _, scope := range provider.Scopes {
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switch scope {
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case SurfaceAdminSystemChannel, SurfaceUserCustomChannel, SurfaceCanvas, SurfaceCreation, SurfaceAgent:
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default:
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return fmt.Errorf("unsupported protocol scope %q", scope)
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}
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}
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if err := validateManifestOperation(provider.Create); err != nil {
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return fmt.Errorf("provider %q create operation: %w", provider.ID, err)
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}
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if provider.Agent != nil {
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if err := validateManifestOperation(*provider.Agent); err != nil {
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return fmt.Errorf("provider %q agent operation: %w", provider.ID, err)
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}
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if provider.AgentResponse == nil {
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return fmt.Errorf("provider %q agent response mapping is required when agent operation is declared", provider.ID)
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}
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}
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if provider.Poll != nil {
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if err := validateManifestOperation(*provider.Poll); err != nil {
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return fmt.Errorf("provider %q poll operation: %w", provider.ID, err)
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}
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}
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if provider.Cancel != nil {
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if err := validateManifestOperation(*provider.Cancel); err != nil {
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return fmt.Errorf("provider %q cancel operation: %w", provider.ID, err)
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}
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}
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if provider.Result != nil {
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if err := validateManifestOperation(*provider.Result); err != nil {
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return fmt.Errorf("provider %q result operation: %w", provider.ID, err)
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}
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}
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for ruleIndex, rule := range provider.Validations {
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if rule.Assert == nil || strings.TrimSpace(rule.Message) == "" {
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return fmt.Errorf("provider %q validation %d requires assert and message", provider.ID, ruleIndex)
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}
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}
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}
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return validatePaymentProviderContributions(manifest)
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}
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func validatePaymentProviderContributions(manifest Manifest) error {
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seen := make(map[string]struct{}, len(manifest.Contributes.PaymentProviders))
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for index, provider := range manifest.Contributes.PaymentProviders {
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provider.ID = strings.TrimSpace(provider.ID)
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if provider.ID == "" || strings.TrimSpace(provider.Label) == "" || !validManifestIdentifier(provider.ID) {
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return fmt.Errorf("payment provider contribution %d requires a valid id and label", index)
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}
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if _, exists := seen[provider.ID]; exists {
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return fmt.Errorf("duplicate payment provider contribution %q", provider.ID)
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}
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seen[provider.ID] = struct{}{}
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if strings.TrimSpace(provider.Icon) == "" {
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return fmt.Errorf("payment provider contribution %q requires an icon", provider.ID)
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}
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switch provider.CheckoutMode {
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case "qr_code", "redirect":
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default:
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return fmt.Errorf("payment provider contribution %q has unsupported checkout mode %q", provider.ID, provider.CheckoutMode)
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}
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policy := provider.ExpiryPolicy
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if policy.MinMinutes <= 0 || policy.DefaultMinutes < policy.MinMinutes || policy.MaxMinutes < policy.DefaultMinutes {
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return fmt.Errorf("payment provider contribution %q has invalid expiry policy", provider.ID)
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}
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for _, field := range provider.IdentityFields {
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if strings.TrimSpace(field) == "" || len(field) > 80 {
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return fmt.Errorf("payment provider contribution %q has invalid identity field %q", provider.ID, field)
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}
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}
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for _, response := range []ManifestPaymentResponse{provider.NotificationSuccess, provider.NotificationFailure} {
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if response.Status < 0 || response.Status > 599 {
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return fmt.Errorf("payment provider contribution %q has invalid notification response status", provider.ID)
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}
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}
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}
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return nil
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}
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func normalizeManifest(manifest *Manifest) error {
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if manifest == nil {
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return fmt.Errorf("plugin manifest is missing")
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}
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if len(manifest.Contributes.Providers) == 0 {
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manifest.Metadata.Execution = manifest.Runtime.Backend
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return nil
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}
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return normalizeManifestForProvider(manifest, 0)
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}
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func normalizeManifestForProvider(manifest *Manifest, index int) error {
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if manifest == nil || index < 0 || index >= len(manifest.Contributes.Providers) {
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return fmt.Errorf("plugin provider contribution is missing")
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}
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provider := manifest.Contributes.Providers[index]
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manifest.Metadata.ID = provider.ID
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manifest.Metadata.Categories = provider.Capabilities
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manifest.Metadata.Scopes = provider.Scopes
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manifest.Metadata.Parameters = provider.Parameters
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manifest.Metadata.Create = operationSummary(provider.Create)
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manifest.Metadata.Poll = operationSummaryPtr(provider.Poll)
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manifest.Metadata.Cancel = operationSummaryPtr(provider.Cancel)
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manifest.Metadata.ContentType = provider.Create.ContentType
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manifest.Metadata.RequiresPublicMediaURLs = provider.RequiresPublicMediaURLs
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manifest.Metadata.Execution = manifest.Runtime.Backend
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manifest.Create = provider.Create
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manifest.Agent = provider.Agent
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manifest.Poll = provider.Poll
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manifest.Cancel = provider.Cancel
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manifest.ResultOperation = provider.Result
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manifest.Response = provider.Response
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manifest.AgentResponse = provider.AgentResponse
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manifest.Auth = provider.Auth
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manifest.Validations = provider.Validations
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return nil
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}
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func hasNonProviderContribution(contributes ManifestContributions) bool {
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if len(contributes.SMSProviders) > 0 {
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return true
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}
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return len(contributes.PaymentProviders) > 0 || len(contributes.Workflows) > 0 || len(contributes.CanvasNodes) > 0 || len(contributes.Transforms) > 0 || len(contributes.Commands) > 0 || len(contributes.AssetSources) > 0 || len(contributes.UsageObservers) > 0 || len(contributes.AICapabilities) > 0 || len(contributes.Agents) > 0 || len(contributes.ImportExport) > 0
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}
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func operationSummary(operation ManifestOperation) string {
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path := strings.ReplaceAll(operation.Path, "{{model}}", "{model}")
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path = strings.ReplaceAll(path, "{{taskId}}", "{task_id}")
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return strings.ToUpper(operation.Method) + " " + path
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}
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func operationSummaryPtr(operation *ManifestOperation) string {
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if operation == nil {
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return ""
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}
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return operationSummary(*operation)
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}
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func validateManifestOperation(operation ManifestOperation) error {
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method := strings.ToUpper(strings.TrimSpace(operation.Method))
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if method != http.MethodGet && method != http.MethodPost && method != http.MethodDelete && method != http.MethodPut {
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return fmt.Errorf("unsupported HTTP method %q", operation.Method)
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}
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if operation.PathTemplate == nil && !isRelativePath(operation.Path) {
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return fmt.Errorf("path must be relative: %q", operation.Path)
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}
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contentType := strings.ToLower(strings.TrimSpace(strings.Split(defaultValue(operation.ContentType, "application/json"), ";")[0]))
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switch contentType {
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case "application/json", "multipart/form-data", "application/x-www-form-urlencoded", "application/octet-stream", "":
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default:
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return fmt.Errorf("unsupported content type %q", operation.ContentType)
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}
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if len(operation.Files) > 0 && operation.ContentTypeTemplate == nil && contentType != "multipart/form-data" {
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return fmt.Errorf("file parts require multipart/form-data")
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}
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for _, file := range operation.Files {
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if strings.TrimSpace(file.Name) == "" || file.Source == nil {
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return fmt.Errorf("multipart file part requires name and source")
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}
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}
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return nil
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}
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func manifestError(payload map[string]any, paths ...string) bool {
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for _, path := range paths {
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value := pathValue(payload, path)
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switch typed := value.(type) {
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case nil:
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continue
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case string:
|
|
switch strings.ToLower(strings.TrimSpace(typed)) {
|
|
case "", "0", "ok", "success", "succeeded", "true":
|
|
continue
|
|
default:
|
|
return true
|
|
}
|
|
case float64:
|
|
if typed == 0 {
|
|
continue
|
|
}
|
|
return true
|
|
case float32:
|
|
if typed == 0 {
|
|
continue
|
|
}
|
|
return true
|
|
case int, int8, int16, int32, int64:
|
|
if reflectValueIsZero(typed) {
|
|
continue
|
|
}
|
|
return true
|
|
case uint, uint8, uint16, uint32, uint64:
|
|
if reflectValueIsZero(typed) {
|
|
continue
|
|
}
|
|
return true
|
|
default:
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func reflectValueIsZero(value any) bool {
|
|
switch typed := value.(type) {
|
|
case int:
|
|
return typed == 0
|
|
case int8:
|
|
return typed == 0
|
|
case int16:
|
|
return typed == 0
|
|
case int32:
|
|
return typed == 0
|
|
case int64:
|
|
return typed == 0
|
|
case uint:
|
|
return typed == 0
|
|
case uint8:
|
|
return typed == 0
|
|
case uint16:
|
|
return typed == 0
|
|
case uint32:
|
|
return typed == 0
|
|
case uint64:
|
|
return typed == 0
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
// firstPathJSONValue keeps scalar response fields string-like while allowing
|
|
// providers to return tool arguments as an object instead of a JSON string.
|
|
// The platform tool contract always stores arguments as JSON text.
|
|
func firstPathJSONValue(payload map[string]any, paths ...string) string {
|
|
for _, path := range paths {
|
|
value := pathValue(payload, path)
|
|
switch typed := value.(type) {
|
|
case string:
|
|
if strings.TrimSpace(typed) != "" {
|
|
return strings.TrimSpace(typed)
|
|
}
|
|
case nil:
|
|
continue
|
|
default:
|
|
encoded, err := json.Marshal(typed)
|
|
if err == nil && len(encoded) > 0 {
|
|
return string(encoded)
|
|
}
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func setMapPath(target map[string]any, path string, value any) {
|
|
parts := strings.Split(strings.Trim(path, "."), ".")
|
|
current := target
|
|
for _, part := range parts[:len(parts)-1] {
|
|
next, ok := current[part].(map[string]any)
|
|
if !ok {
|
|
next = map[string]any{}
|
|
current[part] = next
|
|
}
|
|
current = next
|
|
}
|
|
if len(parts) > 0 {
|
|
current[parts[len(parts)-1]] = value
|
|
}
|
|
}
|
|
|
|
func isRelativePath(path string) bool {
|
|
parsed, err := url.Parse(strings.TrimSpace(path))
|
|
return err == nil && parsed.Path != "" && strings.HasPrefix(parsed.Path, "/") && !strings.HasPrefix(parsed.Path, "//") && parsed.Host == "" && parsed.User == nil && parsed.Scheme == ""
|
|
}
|
|
|
|
func validManifestIdentifier(value string) bool {
|
|
if len(value) == 0 || len(value) > 96 {
|
|
return false
|
|
}
|
|
for index, char := range value {
|
|
if (char >= 'a' && char <= 'z') || (char >= '0' && char <= '9') || char == '-' || char == '_' || char == '.' {
|
|
if index == 0 && (char == '-' || char == '_' || char == '.') {
|
|
return false
|
|
}
|
|
continue
|
|
}
|
|
return false
|
|
}
|
|
return true
|
|
}
|