eve/dist/src/eve-channel/index.js

Filesystem-first framework for durable backend AI agents that run anywhere.

import{EVE_ACTIVITY_ROUTE_PATTERN,EVE_CALLBACK_ROUTE_PATTERN,EVE_CONNECTION_CALLBACK_ROUTE_PATTERN,EVE_HEALTH_ROUTE_PATH,EVE_INFO_ROUTE_PATH,EVE_ROUTE_PREFIX,EVE_SESSION_CANCEL_ROUTE_PATTERN,EVE_SESSION_CLEAR_ROUTE_PATTERN,EVE_SESSION_COMPACT_ROUTE_PATTERN,EVE_SESSION_RESET_ROUTE_PATTERN,EVE_SESSION_ROUTE_PATH,EVE_SESSION_ROUTE_PATTERN,EVE_SESSION_STREAM_ROUTE_PATTERN,EVE_SUBAGENT_STREAM_ROUTE_PATTERN,EVE_TASK_INPUT_ROUTE_PATTERN,createEveSessionStreamRoutePath,createEveSubagentStreamRoutePath}from"#protocol/routes.js";import{attachClientContext}from"#internal/client-context.js";import{createLogger,logError}from"#internal/logging.js";import{FAIL_CLOSED_FORWARDED_TRACE_ASSERTION,formatTraceContentCeiling}from"#shared/forwarded-trace-policy.js";import{EVE_SESSION_ID_HEADER,EVE_STREAM_CONTROL_VERSION_QUERY,EVE_STREAM_FORMAT_HEADER,EVE_STREAM_TAIL_INDEX_HEADER,EVE_STREAM_VERSION_HEADER}from"#protocol/message.js";import{DELETE,GET,HEAD,PATCH,POST,PUT,defineChannel}from"#public/definitions/channel.js";import{handleExpiredLegacyAuthorization}from"#execution/legacy-session/authorization.js";import{resolveForwardedPrincipal}from"#channel/forwarded-principal.js";import{handleConnectionCallbackRequest}from"#execution/connections/callback-route.js";import{handleActivityRequest}from"#execution/activity-route.js";import{handleSessionCallbackRequest}from"#subagents/callback-route.js";import{handleTaskInputResponseRequest}from"#execution/task-input-response-route.js";import{WORKFLOW_WEBHOOK_ROUTE_PATTERN,handleWorkflowWebhookRequest}from"#execution/workflow-webhook-route.js";import{readAgentInfoRouteResponse,readRemoteAgentStreamHeadersResolver,readRouteSessionCreator}from"#internal/nitro/routes/channel-route-context.js";import{parseTraceparent,readAgentDispatchTraceContext}from"#protocol/traceparent.js";import{readForwardedAudienceBaggage,readForwardedParentSessionBaggage}from"#protocol/baggage.js";import{readConversationBaggage}from"#tracing/conversation-context.js";import{routeAuth}from"#public/channels/auth.js";import{defaultEveAudience}from"#eve-channel/audience.js";import{mergeUploadPolicy}from"#public/channels/upload-policy.js";import{checkUploadPolicy,createSessionStreamResponse,deriveOperationContinuationToken,parseCancelTurnBody,parseCreateBody,parseIncludeTailIndex,parseJsonRequest,parseOptionalJsonRequest,parseResetBody,parseSessionControlBody,parseSessionMessageBody,parseStartIndex,rejectSessionContinuationToken,requireSessionId}from"#eve-channel/request.js";import{findRemoteSubagentBinding,healthResponse,normalizeEveCors,resolveOnMessage}from"#eve-channel/support.js";export*from"#eve-channel/types.js";const log=createLogger(`eve.channel`);function eveChannel(e){let t=mergeUploadPolicy(e.uploadPolicy);return defineChannel({cors:normalizeEveCors(e.cors),turnPolicy:e.turnPolicy,audience:t=>{let n=e.audience??defaultEveAudience;return typeof n==`function`?n(t):n},routes:[GET(EVE_HEALTH_ROUTE_PATH,async()=>healthResponse()),HEAD(EVE_HEALTH_ROUTE_PATH,async()=>healthResponse()),GET(EVE_INFO_ROUTE_PATH,async(t,n)=>{let r=await routeAuth(t,e.auth);if(r instanceof Response)return r;let i=readAgentInfoRouteResponse(n);return i===void 0?Response.json({error:`Agent info route requires internal channel dispatch context.`,ok:!1},{status:500}):await i()}),GET(`${EVE_ROUTE_PREFIX}/connections/:name/callback/:token`,handleExpiredLegacyAuthorization),POST(`${EVE_ROUTE_PREFIX}/connections/:name/callback/:token`,handleExpiredLegacyAuthorization),GET(EVE_CONNECTION_CALLBACK_ROUTE_PATTERN,handleConnectionCallbackRequest),POST(EVE_CONNECTION_CALLBACK_ROUTE_PATTERN,handleConnectionCallbackRequest),POST(EVE_ACTIVITY_ROUTE_PATTERN,handleActivityRequest),POST(EVE_CALLBACK_ROUTE_PATTERN,handleSessionCallbackRequest),POST(EVE_TASK_INPUT_ROUTE_PATTERN,handleTaskInputResponseRequest),GET(WORKFLOW_WEBHOOK_ROUTE_PATTERN,handleWorkflowWebhookRequest),POST(WORKFLOW_WEBHOOK_ROUTE_PATTERN,handleWorkflowWebhookRequest),PUT(WORKFLOW_WEBHOOK_ROUTE_PATTERN,handleWorkflowWebhookRequest),PATCH(WORKFLOW_WEBHOOK_ROUTE_PATTERN,handleWorkflowWebhookRequest),DELETE(WORKFLOW_WEBHOOK_ROUTE_PATTERN,handleWorkflowWebhookRequest),POST(EVE_SESSION_ROUTE_PATH,async(n,r)=>{let i=await routeAuth(n,e.auth);if(i instanceof Response)return i;let a=await parseOptionalJsonRequest(n);if(a instanceof Response)return a;let o=rejectSessionContinuationToken(a);if(o!==null)return o;let s=await resolveForwardedPrincipal({trustedForwarders:e.trustedForwarders,forwarder:i,payload:a});if(s instanceof Response)return s;let c=parseCreateBody(a);if(c instanceof Response)return c;let l=c.callback===void 0?`absent`:readForwardedParentSessionBaggage(n.headers.get(`baggage`)),u;if(typeof l==`object`){if(l.callId!==c.callback?.callId)log.warn(`ignoring remote parent lineage with a mismatched callback`,{forwarder:i.principalId});else{let t=s.accepted;if(!t&&e.trustedForwarders!==void 0)try{t=await e.trustedForwarders(i)}catch(e){let t=logError(log,`trustedForwarders handler failed`,e,{forwarder:i.principalId});return Response.json({error:`trustedForwarders handler failed.`,errorId:t,ok:!1},{status:500})}t?u=l:log.warn(`ignoring remote parent lineage from an untrusted forwarder`,{forwarder:i.principalId})}}else l===`malformed`&&log.warn(`ignoring malformed remote parent lineage`,{forwarder:i.principalId});let d=c.callback===void 0?void 0:parseTraceparent(n.headers.get(`traceparent`)),f=c.callback===void 0?void 0:readAgentDispatchTraceContext(n.headers.get(`tracestate`),d)??d,p=checkUploadPolicy(c,t);if(p!==null)return p;if(c.operationId!==void 0&&s.auth.principalType===`anonymous`)return Response.json({error:`operationId requires an authenticated principal.`,ok:!1},{status:400});let m=c.operationId===void 0?void 0:await deriveOperationContinuationToken({auth:s.auth,operationId:c.operationId});if(m!==void 0){let e=await r.resolveSession(m);if(e!==void 0)return Response.json({ok:!0,sessionId:e.id,status:`accepted`},{headers:{"cache-control":`no-store`,[EVE_SESSION_ID_HEADER]:e.id},status:202})}let h=d===void 0?`absent`:readForwardedAudienceBaggage(n.headers.get(`baggage`)),g=s.accepted&&d!==void 0&&(d.traceFlags&1)==1?typeof h==`object`?h:h===`malformed`?FAIL_CLOSED_FORWARDED_TRACE_ASSERTION:void 0:void 0,_=f;g!==void 0&&f!==void 0&&(_={...f,forwardedTracePolicy:g}),h===`malformed`?log.warn(`using metadata-only policy for malformed forwarded audience baggage`,{forwarder:i.principalId}):typeof h==`object`&&(g===void 0?log.warn(`ignoring forwarded trace policy without an accepted sampled principal`,{forwarder:i.principalId}):log.info(`accepted forwarded trace policy`,{audience:h.originAudience,ceiling:formatTraceContentCeiling(h.ceiling),forwarder:i.principalId}));let v=c.message===void 0?{auth:s.auth}:await resolveOnMessage({auth:s.auth,config:e,message:c.message,request:n});if(v instanceof Response)return v;let y=readRouteSessionCreator(r);if(y===void 0)return Response.json({error:`Session creation requires internal channel dispatch context.`,ok:!1},{status:500});let b;try{b=await y({taskDeliveryPolicy:c.taskDeliveryPolicy,activityObserver:c.activityObserver,audienceAuth:i,auth:v.auth,capabilities:c.capabilities??(c.mode===`task`?void 0:{requestInput:!0}),callback:c.callback,continuationToken:m,initiatorAuth:s.accepted?s.initiatorAuth:void 0,input:attachClientContext({message:c.message,context:v.context,outputSchema:c.outputSchema},c.context),mode:c.mode??`conversation`,conversationId:c.callback===void 0?void 0:readConversationBaggage(n.headers.get(`baggage`)),parent:u,parentTraceContext:_,title:v.title})}catch(e){let t=logError(log,`session-create request failed`,e);return Response.json({error:`Failed to create the session.`,errorId:t,ok:!1},{status:500})}return Response.json({ok:!0,sessionId:b.sessionId,status:`accepted`},{headers:{"cache-control":`no-store`,[EVE_SESSION_ID_HEADER]:b.sessionId},status:202})}),POST(EVE_SESSION_ROUTE_PATTERN,async(n,{attachSession:r,params:i})=>{let a=await routeAuth(n,e.auth);if(a instanceof Response)return a;let o=requireSessionId(i);if(o instanceof Response)return o;let s=await parseJsonRequest(n);if(s instanceof Response)return s;let c=await resolveForwardedPrincipal({trustedForwarders:e.trustedForwarders,forwarder:a,payload:s});if(c instanceof Response)return c;let l=parseSessionMessageBody(s);if(l instanceof Response)return l;let u=checkUploadPolicy(l,t);if(u!==null)return u;let d,f,p=c.auth;if(l.message!==void 0){let t=await resolveOnMessage({auth:c.auth,config:e,message:l.message,request:n,sessionId:o});if(t instanceof Response)return t;d=t.context,f=t.title,p=t.auth}let m;try{let e=r(o),t=attachClientContext({taskDeliveryPolicy:l.taskDeliveryPolicy,activityObserver:l.activityObserver,auth:p,callback:l.callback,context:d,outputSchema:l.outputSchema,turnPolicy:l.turnPolicy,title:f},l.context);m=l.inputResponses===void 0?await e.send(l.message,t):await e.respond(l.inputResponses,t)}catch(e){let t=logError(log,`session-message request failed`,e,{sessionId:o});return Response.json({error:`Failed to send the session message.`,errorId:t,ok:!1},{status:500})}return m.status===`accepted`?Response.json({ok:!0,sessionId:m.sessionId,status:`accepted`,deliveryId:m.deliveryId},{headers:{"cache-control":`no-store`,[EVE_SESSION_ID_HEADER]:m.sessionId},status:202}):Response.json({code:m.retryable?`session_not_ready`:`session_not_active`,error:m.retryable===!0?`The session is not ready to accept messages yet.`:`The session is no longer active.`,ok:!1},{headers:{"cache-control":`no-store`},status:409})}),POST(EVE_SESSION_CANCEL_ROUTE_PATTERN,async(t,{attachSession:n,params:r})=>{let i=await routeAuth(t,e.auth);if(i instanceof Response)return i;let a=requireSessionId(r);if(a instanceof Response)return a;let o=await parseCancelTurnBody(t);if(o instanceof Response)return o;let s;try{s=await n(a).cancel({taskId:o.taskId,tasks:o.tasks,turnId:o.turnId})}catch(e){let t=logError(log,`cancel-turn request failed`,e,{sessionId:a});return Response.json({error:`Failed to cancel the turn.`,errorId:t,ok:!1},{status:500})}return Response.json(s.status===`accepted`?{ok:!0,sessionId:s.sessionId,status:`accepted`}:{ok:!0,status:`no_active_turn`},{headers:{"cache-control":`no-store`},status:s.status===`accepted`?202:200})}),POST(EVE_SESSION_COMPACT_ROUTE_PATTERN,async(t,{attachSession:n,params:r})=>{let i=await routeAuth(t,e.auth);if(i instanceof Response)return i;let a=requireSessionId(r);if(a instanceof Response)return a;let o=await parseSessionControlBody(t);if(o instanceof Response)return o;let s;try{s=await n(a).compact()}catch(e){let t=logError(log,`session-compaction request failed`,e,{sessionId:a});return Response.json({error:`Failed to compact the session.`,errorId:t,ok:!1},{status:500})}return Response.json(s.status===`accepted`?{ok:!0,sessionId:s.sessionId,status:`accepted`}:{ok:!0,status:`no_active_session`},{headers:{"cache-control":`no-store`},status:s.status===`accepted`?202:200})}),POST(EVE_SESSION_CLEAR_ROUTE_PATTERN,async(t,{attachSession:n,params:r})=>{let i=await routeAuth(t,e.auth);if(i instanceof Response)return i;let a=requireSessionId(r);if(a instanceof Response)return a;let o=await parseSessionControlBody(t);if(o instanceof Response)return o;let s;try{s=await n(a).clear()}catch(e){let t=logError(log,`session-clear request failed`,e,{sessionId:a});return Response.json({error:`Failed to clear the session context.`,errorId:t,ok:!1},{status:500})}return Response.json(s.status===`accepted`?{ok:!0,sessionId:s.sessionId,status:`accepted`}:{ok:!0,status:`no_active_session`},{headers:{"cache-control":`no-store`},status:s.status===`accepted`?202:200})}),POST(EVE_SESSION_RESET_ROUTE_PATTERN,async(t,{attachSession:n,params:r})=>{let i=await routeAuth(t,e.auth);if(i instanceof Response)return i;let a=requireSessionId(r);if(a instanceof Response)return a;let o=await parseResetBody(t);if(o instanceof Response)return o;let s;try{s=await n(a).reset({reason:o.reason})}catch(e){let t=logError(log,`session-reset request failed`,e,{sessionId:a});return Response.json({error:`Failed to reset the session.`,errorId:t,ok:!1},{status:500})}return Response.json(s.status===`reset`?{ok:!0,previousSessionId:s.previousSessionId,status:`reset`}:{ok:!0,status:`no_active_session`},{headers:{"cache-control":`no-store`}})}),GET(EVE_SESSION_STREAM_ROUTE_PATTERN,async(t,{attachSession:n,params:r})=>{let i=await routeAuth(t,e.auth);if(i instanceof Response)return i;let a=requireSessionId(r);return a instanceof Response?a:await createSessionStreamResponse(t,n(a))}),GET(EVE_SUBAGENT_STREAM_ROUTE_PATTERN,async(t,n)=>{let r=await routeAuth(t,e.auth);if(r instanceof Response)return r;let i=n.params.parentSessionId,a=n.params.callId,o=n.params.childSessionId;if(!i||!a||!o)return Response.json({error:`Missing subagent stream coordinates.`,ok:!1},{status:400});let s=parseStartIndex(t);if(s instanceof Response)return s;let c=parseIncludeTailIndex(t),l=createEveSubagentStreamRoutePath({callId:a,childSessionId:o,parentSessionId:i}),u;try{let e=n.attachSession(i),t=await findRemoteSubagentBinding({callId:a,childSessionId:o,childStreamPath:l,parentSessionId:i,parent:e});if(t===void 0)throw Error(`Remote subagent binding not found.`);u=t}catch{return Response.json({error:`Subagent stream not found.`,ok:!1},{status:404})}let d=readRemoteAgentStreamHeadersResolver(n);if(d===void 0)return Response.json({error:`Subagent stream proxy requires internal channel dispatch context.`,ok:!1},{status:500});let f;try{f=await d({name:u.data.toolName,resolverId:u.data.remote.resolverId,url:u.data.remote.url})}catch{return Response.json({error:`Subagent stream not found.`,ok:!1},{status:404})}let p=new URL(createEveSessionStreamRoutePath(o).replace(/^\/+/,``),`${u.data.remote.url.replace(/\/+$/,``)}/`);s!==void 0&&p.searchParams.set(`startIndex`,String(s));let m=new URL(t.url).searchParams.get(EVE_STREAM_CONTROL_VERSION_QUERY);m!==null&&p.searchParams.set(EVE_STREAM_CONTROL_VERSION_QUERY,m),c&&p.searchParams.set(`includeTailIndex`,`1`);let h=await fetch(p,{cache:`no-store`,headers:f,redirect:`manual`,signal:t.signal}),g=new Headers;for(let e of[`cache-control`,`content-type`,`x-accel-buffering`,EVE_SESSION_ID_HEADER,EVE_STREAM_FORMAT_HEADER,EVE_STREAM_TAIL_INDEX_HEADER,EVE_STREAM_VERSION_HEADER]){let t=h.headers.get(e);t!==null&&g.set(e,t)}return new Response(h.body,{headers:g,status:h.status,statusText:h.statusText})})],events:e.events})}export{eveChannel};