eve
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Filesystem-first framework for durable backend AI agents that run anywhere.
1 lines • 4.09 kB
JavaScript
import{createHash}from"node:crypto";function applyMicrosandboxNetwork(e,t){let n=createMicrosandboxNetworkPlan(t);return n.disabled?e.disableNetwork():n.policy===null&&n.transformHeaderRules.length===0?e:e.network(e=>{let t=e.enabled(!0);if(n.policy!==null&&(t=t.policyJson(serializeMicrosandboxNetworkPolicyJson(n.policy))),n.transformHeaderRules.length===0)return t;t=t.trustHostCAs(!0);for(let e of n.transformHeaderRules)for(let[n,r]of Object.entries(e.headers)){let i=e.placeholderHeaders[n];if(i===void 0)continue;let a=createSecretEnvName(e.domain,n,r);t=t.secret(t=>{let n=t.env(a).value(r).placeholder(i).injectHeaders(!0).injectBasicAuth(!0).injectQuery(!1).injectBody(!1).requireTlsIdentity(!0);return n=e.domain===`*`?n.allowAnyHostDangerous(!0):e.domain.startsWith(`*.`)?n.allowHostPattern(e.domain):n.allowHost(e.domain),n})}return t})}function serializeMicrosandboxNetworkPolicyJson(e){let t={default_egress:e.defaultEgress,default_ingress:e.defaultIngress,rules:e.rules.map(e=>({action:e.action,destination:serializeMicrosandboxNetworkDestination(e.destination),direction:e.direction,ports:e.ports,protocols:e.protocols}))};return JSON.stringify(t)}function createMicrosandboxNetworkPlan(e){if(e===void 0||e===`allow-all`)return{disabled:!1,policy:{defaultEgress:`allow`,defaultIngress:`deny`,rules:[]},transformHeaderRules:[]};if(e===`deny-all`)return{disabled:!0,policy:null,transformHeaderRules:[]};let t=[],n=[],r=normalizeAllowEntries(e.allow),i=r.some(e=>e.domain===`*`),a=i?`allow`:`deny`;for(let n of e.subnets?.deny??[])t.push({action:`deny`,destination:{cidr:n,kind:`cidr`},direction:`egress`,ports:[],protocols:[]});for(let n of e.subnets?.allow??[])t.push({action:`allow`,destination:{cidr:n,kind:`cidr`},direction:`egress`,ports:[],protocols:[]});i||t.push({action:`allow`,destination:{kind:`any`},direction:`egress`,ports:[{start:53,end:53}],protocols:[`udp`,`tcp`]});for(let e of r)if(e.domain!==`*`){t.push({action:`allow`,destination:domainToDestination(e.domain),direction:`egress`,ports:[],protocols:[]});for(let t of e.rules)for(let r of normalizeTransforms(t.transform))Object.keys(r.headers).length!==0&&n.push({domain:e.domain,headers:r.headers,match:t.match,placeholderHeaders:createPlaceholderHeaders(e.domain,r.headers)})}return{disabled:!1,policy:{defaultEgress:a,defaultIngress:`deny`,rules:t},transformHeaderRules:n}}function createTransformBrokerEnvironment(e){if(e.transformHeaderRules.length===0)return{};let t=e.transformHeaderRules.flatMap(e=>Object.entries(e.placeholderHeaders).filter(([e])=>e.toLowerCase()===`authorization`).flatMap(([t,n])=>e.domain===`*`||e.domain.startsWith(`*.`)?[]:[{key:`http.https://${e.domain}/.extraheader`,value:`${t}: ${n}`}])),n={};return t.length>0&&(n.GIT_CONFIG_COUNT=String(t.length),t.forEach((e,t)=>{n[`GIT_CONFIG_KEY_${t}`]=e.key,n[`GIT_CONFIG_VALUE_${t}`]=e.value})),n}function normalizeAllowEntries(e){return e===void 0?[]:Array.isArray(e)?e.map(e=>({domain:e,rules:[]})):Object.entries(e).map(([e,t])=>({domain:e,rules:Array.isArray(t)?t:[]}))}function normalizeTransforms(e){return e===void 0?[]:e.map(e=>({headers:e.headers??{}}))}function domainToDestination(e){return e.startsWith(`*.`)?{kind:`domainSuffix`,suffix:e.slice(2)}:{domain:e,kind:`domain`}}function serializeMicrosandboxNetworkDestination(e){switch(e.kind){case`any`:return`any`;case`cidr`:return{cidr:e.cidr??``};case`domain`:return{domain:e.domain??``};case`domainSuffix`:return{domain_suffix:e.suffix??``};case`group`:return{group:e.group??``};default:throw Error(`Unsupported microsandbox network destination kind.`)}}function createPlaceholderHeaders(e,t){let n={};for(let[r,i]of Object.entries(t))n[r]=`__EVE_MSB_SECRET_${createStableHash(`${e}:${r}:${i}`).slice(0,24)}__`;return n}function createSecretEnvName(e,t,n){return`EVE_MSB_SECRET_${createStableHash(`${e}:${t}:${n}`).slice(0,24).toUpperCase()}`}function createStableHash(t){return createHash(`sha256`).update(t).digest(`hex`)}export{applyMicrosandboxNetwork,createMicrosandboxNetworkPlan,createTransformBrokerEnvironment,serializeMicrosandboxNetworkPolicyJson};