Files
Agent-System-Backend/internal/app/hostcaps.go
T
weichen 4ae125a3ef
ci / vet-and-test (pull_request) Successful in 57s
Add AdminProvider capability and HostProjectID context (EXT-18)
Why: RDM KTD4 dual-layer admin requires base isAdmin visibility (superuser slot); KTD5 host-project binding needs trusted current-project context.

Evidence: SELF 4 ext18 tests pass + surface snapshot regenerated + full pkg/extension + internal/app suites green.

Impact: extension.Request gains HostProjectID; optional AdminProvider interface (EXT-17 pattern); inprocHost implements IsAdmin via GetUserAuthState; three dispatch sites set HostProjectID from conversation.

Refs: RDM docs/proposals U1 base extension requests
2026-10-11 16:23:15 +00:00

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package app
import (
"agent-system-backend/pkg/extension"
"context"
"fmt"
"sync"
"agent-system-backend/internal/ingest"
"agent-system-backend/internal/rag"
"agent-system-backend/internal/runtime"
"agent-system-backend/internal/settings"
"agent-system-backend/internal/store"
"agent-system-backend/internal/surfacesvc"
core "agent-system-core"
)
// hostcaps 聚合 owner 作用域的宿主能力(存储、检索管线、LLM 路由)。
// 同一实现同时服务 hostapi.Server 的 Search/Complete 闭包与进程内
// inprocHost(EXT-1 批注 1:复用现有 owner 作用域函数,不新造句柄)。
type hostcaps struct {
st *store.Store
pipe *rag.Pipeline
set *settings.Service
authz *projectAuthz // EXT-8 适配器槽(共享指针;首个注册者生效)
surfaces *surfacesvc.Service // EXT-17 Surface 能力槽(nil = 未装配,明确拒绝)
}
// projectAuthz EXT-8 资源授权适配器槽:进程内扩展注册,组合根装配进 Server。
type projectAuthz struct {
mu sync.Mutex
holder string // 持有者 pluginID(首个注册者生效)
fn extension.ResourceAuthorizer
}
func (a *projectAuthz) set(pluginID string, fn extension.ResourceAuthorizer) {
a.mu.Lock()
defer a.mu.Unlock()
if a.fn != nil {
return // 首个注册者生效;后来者忽略(调用方经日志可查)
}
a.holder, a.fn = pluginID, fn
}
// Authorize owner×project 共享读取判定;未注册一律 false(默认拒绝)。
func (a *projectAuthz) Authorize(owner string, projectID core.ID) (bool, error) {
a.mu.Lock()
fn := a.fn
a.mu.Unlock()
if fn == nil || owner == "" || projectID == "" {
return false, nil
}
return fn(owner, projectID)
}
// wireScopedHostFactory EXT-11:把「按 owner+pluginID 构造受限 Host」注入公开面
// (extension.SetScopedHostFactory)。组合根在 hostcaps 就绪后调用;重建句柄与
// 分发期同构(owner 作用域、来源前缀强制、KV/任务台账隔离)。
func wireScopedHostFactory(caps hostcaps) {
extension.SetScopedHostFactory(func(owner, pluginID string) extension.Host {
return inprocHost{caps: caps, pluginID: pluginID, owner: owner}
})
}
// search owner 作用域混合检索;projectID/topK 为空/0 时用管线默认值。
// sharedRetriever EXT-13:rag.Pipeline.RetrieveShared 形状(避免 app 直接 import rag
// 的具体类型断言散落)。
type sharedRetriever interface {
RetrieveShared(ctx context.Context, owner core.ID, q core.RetrievalQuery, allow func(docOwner, projectID core.ID) bool) ([]core.RetrievalHit, error)
}
func (c hostcaps) search(ctx context.Context, owner string, projectID core.ID, text string, topK int) ([]core.RetrievalHit, error) {
q := core.RetrievalQuery{ProjectID: projectID, Text: text, TopK: topK}
// EXT-13:进程内 Host 检索面与回合内检索同一授权口径——适配器已注册时走
// 共享通道(本人两路如常 + 放行的他人项目知识,与 HTTP 检索面一致)。
if c.authz != nil {
if rs, ok := interface{}(c.pipe).(sharedRetriever); ok {
return rs.RetrieveShared(ctx, core.ID(owner), q, func(docOwner, pid core.ID) bool {
ok, err := c.authz.Authorize(owner, pid)
return err == nil && ok
})
}
}
return c.pipe.Retrieve(ctx, core.ID(owner), q)
}
// searchDefault 与 hostapi /host/v1 检索端点同口径(不带 projectID/topK)。
func (c hostcaps) searchDefault(ctx context.Context, owner, text string) ([]core.RetrievalHit, error) {
return c.search(ctx, owner, "", text, 0)
}
// complete 经基座 LLM 路由补全(owner 的模型配置生效;未配置报错)。
func (c hostcaps) complete(ctx context.Context, owner, prompt string) (string, error) {
route := runtime.ResolveChatModel(core.AgentProfile{}, c.set.Effective(owner, ""))
if route.Model == "" || route.Base == "" {
return "", fmt.Errorf("llm route not configured")
}
return completeChat(ctx, route.Base, route.Key, route.Model, prompt)
}
// maxParseInput 与上传端点的读取上限同口径(server.upload 的 100<<20)。
const maxParseInput = 100 << 20
// parse 走基座内置解析器(EXT-5):纯计算、不落 owner 数据;不可解析由
// Warnings 显式表达,只有取消与超限是 error。
func (c hostcaps) parse(ctx context.Context, filename, mime string, content []byte) (core.ParsedDocument, error) {
if err := ctx.Err(); err != nil {
return core.ParsedDocument{}, err
}
if len(content) > maxParseInput {
return core.ParsedDocument{}, fmt.Errorf("parse input %d bytes exceeds %d limit", len(content), maxParseInput)
}
return ingest.Parse(filename, mime, content), nil
}
// inprocHost 是进程内插件命令的 owner 作用域宿主句柄(extension.Host 实现)。
// 每次分发按请求 Owner 新建;所有能力调用都以该 owner 为第一参数,插件无法越权。
// actor 是本次分发主体(通常等于 owner);AdminProvider 能力经 actor 查询
// (EXT-18)。非 dispatch 上下文(EXT-11 scoped host)actor 为空——IsAdmin 恒 false。
type inprocHost struct {
caps hostcaps
pluginID string
owner string
actor string // EXT-18:分发主体(空=非 dispatch 上下文)
}
func (h inprocHost) PluginID() string { return h.pluginID }
func (h inprocHost) Owner() string { return h.owner }
// IsAdmin 实现 EXT-18 AdminProvider:查询本次分发主体的基座平台管理角色。
// actor 为空(非 dispatch 上下文)恒 false;store 查询失败按非管理员处理
// (fail-closed——不因存储故障放行超管面)。
func (h inprocHost) IsAdmin() bool {
if h.actor == "" {
return false
}
state, err := h.caps.st.GetUserAuthState(h.actor)
if err != nil {
return false
}
return state.IsAdmin
}
func (h inprocHost) KVPut(key, value string) error {
return h.caps.st.PutPluginKV(h.pluginID, h.owner, key, value)
}
func (h inprocHost) KVGet(key string) (string, bool, error) {
return h.caps.st.GetPluginKV(h.pluginID, h.owner, key)
}
func (h inprocHost) Audit(action, target, evidence string) error {
return h.caps.st.AppendAuditEvent(store.AuditEvent{
Owner: h.owner, Actor: "plugin:" + h.pluginID,
Action: action, Target: target, Evidence: evidence,
})
}
func (h inprocHost) Complete(ctx context.Context, prompt string) (string, error) {
return h.caps.complete(ctx, h.owner, prompt)
}
func (h inprocHost) KnowledgeSearch(ctx context.Context, projectID core.ID, text string, topK int) ([]core.RetrievalHit, error) {
return h.caps.search(ctx, h.owner, projectID, text, topK)
}
// KnowledgeWrite 强制 owner 归属:Owner 改写为本次分发 owner,Source 为空补
// "plugin:<id>";embed=false 只写全文行,embed=true 走 IndexChunks 建向量
// (embedding 失败降级纯全文,不阻断写入)。
func (h inprocHost) KnowledgeWrite(ctx context.Context, docs []core.KnowledgeDoc, embed bool) error {
if len(docs) == 0 {
return nil
}
src := "plugin:" + h.pluginID
for i := range docs {
docs[i].Owner = core.ID(h.owner)
if docs[i].Source == "" {
docs[i].Source = src
}
}
if !embed {
return h.caps.st.AddKnowledge(docs...)
}
return h.caps.pipe.IndexChunks(ctx, core.ID(h.owner), docs)
}
// KnowledgePublish 幂等发布(EXT-9):按 docs 的 ref 整批替换——先清该 owner
// 下同 ref 旧行与旧向量(跨来源也清:ref 是发布单元),再走 KnowledgeWrite
// 语义(Owner/Source 强制同彼)。重试产生相同结果。
func (h inprocHost) KnowledgePublish(ctx context.Context, docs []core.KnowledgeDoc, embed bool) error {
if len(docs) == 0 {
return nil
}
refs := map[string]bool{}
for i := range docs {
docs[i].Owner = core.ID(h.owner)
if docs[i].Source == "" {
docs[i].Source = "plugin:" + h.pluginID
}
if docs[i].Ref != "" {
refs[docs[i].Ref] = true
}
}
for ref := range refs {
if err := h.caps.st.DeleteKnowledgeByRef(h.owner, ref); err != nil {
return err
}
if err := h.caps.st.DeleteKnowledgeVectors(ctx, h.owner, ref); err != nil {
return err
}
}
return h.KnowledgeWrite(ctx, docs, embed)
}
// KnowledgeDelete 撤销本插件来源(EXT-9):前缀强制 plugin:<自身ID>——manual
// 或他人来源拒绝(fail-closed);删行+向量,幂等。
func (h inprocHost) KnowledgeDelete(ctx context.Context, sourcePrefix string) error {
if sourcePrefix != "plugin:"+h.pluginID {
return fmt.Errorf("ext-9: plugins may only delete their own source prefix, want %q", "plugin:"+h.pluginID)
}
_, err := h.caps.st.DeleteKnowledgeBySource(ctx, h.owner, sourcePrefix)
return err
}
// TaskCreate/TaskUpdate 后台任务台账:基座只记进度/状态,执行体由下游自跑(H5)。
func (h inprocHost) TaskCreate(kind, title, conversationID string) (string, error) {
t, err := h.caps.st.CreateBackgroundTask(h.owner, kind, title, conversationID)
if err != nil {
return "", err
}
return t.ID, nil
}
func (h inprocHost) TaskUpdate(taskID, status string, progress int, errText string) error {
return h.caps.st.UpdateBackgroundTask(h.owner, taskID, status, progress, errText)
}
// ArtifactGet/ArtifactContent 工件只读(R1-3 ingest 读原件;写入属完整集)。
func (h inprocHost) ArtifactGet(artifactID string) (core.Artifact, error) {
return h.caps.st.GetArtifact(h.owner, artifactID)
}
func (h inprocHost) ArtifactContent(artifactID string) ([]byte, error) {
return h.caps.st.ArtifactContent(h.owner, artifactID)
}
// ParseDocument 内置文档解析(EXT-5):委托 hostcaps.parse;纯计算不经存储,
// owner 作用域由调用方经 ArtifactContent 取字节时保证。
func (h inprocHost) ParseDocument(ctx context.Context, filename, mime string, content []byte) (core.ParsedDocument, error) {
return h.caps.parse(ctx, filename, mime, content)
}
// ---- EXT-17 Surface 能力(可选):nil 槽=能力缺失,明确拒绝不降级 ----
func (h inprocHost) surface() (*surfacesvc.Service, error) {
if h.caps.surfaces == nil {
return nil, surfacesvc.ErrUnavailable
}
return h.caps.surfaces, nil
}
func (h inprocHost) SurfaceSave(ctx context.Context, req extension.SurfaceSaveRequest) (core.SurfaceSnapshot, error) {
svc, err := h.surface()
if err != nil {
return core.SurfaceSnapshot{}, err
}
return svc.Submit(ctx, h.owner, h.pluginID, surfacesvc.SubmitRequest{
SurfaceID: req.SurfaceID, ConversationID: req.ConversationID, SourceRunID: req.SourceRunID,
BaseRevision: req.BaseRevision, ObservedEpoch: req.ObservedEpoch,
ContextVersion: req.ContextVersion, SemanticText: req.SemanticText, Spec: req.Spec,
})
}
func (h inprocHost) SurfaceGet(ctx context.Context, surfaceID core.ID) (core.SurfaceSnapshot, error) {
svc, err := h.surface()
if err != nil {
return core.SurfaceSnapshot{}, err
}
return svc.Get(ctx, h.owner, surfaceID)
}
func (h inprocHost) SurfaceList(ctx context.Context, conversationID core.ID) ([]core.SurfaceMeta, error) {
svc, err := h.surface()
if err != nil {
return nil, err
}
return svc.List(ctx, h.owner, conversationID)
}
func (h inprocHost) SurfaceActivation(ctx context.Context) (bool, int64, error) {
svc, err := h.surface()
if err != nil {
return false, 0, err
}
row, err := svc.Activation(ctx, h.owner, h.pluginID)
return row.Enabled, row.Epoch, err
}