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1991 lines (1896 loc) · 68 KB
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#!/usr/bin/env bun
/**
* Enforces the two tool execution boundaries: external ToolConfig requests are materialized only
* by request-transport.ts, while same-process work uses registered InternalToolConfig operations.
* Tool definitions may not point back to Sim API routes or revive the retired request.internal
* escape hatch. Dynamic provider origins remain supported because the executor rejects their
* resolved URL when it targets Sim; only the two generic user-directed HTTP tools may opt out.
*/
import { existsSync, readdirSync, readFileSync, statSync } from 'node:fs'
import { dirname, extname, join, relative, resolve } from 'node:path'
import { fileURLToPath } from 'node:url'
import { parse } from '@babel/parser'
import ts from '@typescript/typescript6'
const SCRIPT_DIR = dirname(fileURLToPath(import.meta.url))
const ROOT = resolve(SCRIPT_DIR, '..')
const APP = join(ROOT, 'apps/sim')
const CANONICAL_TRANSPORT = join(APP, 'tools/request-transport.ts')
const REQUEST_MEMBERS = new Set(['url', 'method', 'headers', 'body'])
const REQUEST_CANDIDATE_TOKENS = new Set(['request', ...REQUEST_MEMBERS])
const SIM_URLS_MODULE = '@/lib/core/utils/urls'
const SIM_ORIGIN_EXPORTS = new Set(['getBaseUrl', 'getInternalApiBaseUrl'])
const SIM_URL_BUILDER_EXPORTS = new Set(['ensureAbsoluteUrl'])
const EXECUTOR_HTTP_MODULE = '@/executor/utils/http'
const EXECUTOR_URL_BUILDER_EXPORTS = new Set(['buildAPIUrl'])
const SOURCE_EXTENSIONS = new Set(['.ts', '.tsx', '.mts', '.cts', '.js', '.jsx', '.mjs', '.cjs'])
const FUNCTION_NODE_TYPES = new Set([
'ArrowFunctionExpression',
'FunctionExpression',
'FunctionDeclaration',
'ObjectMethod',
])
const URL_VALUE_WRAPPER_CALLS = new Set(['String', 'encodeURI', 'encodeURIComponent'])
const APPROVED_SAME_ORIGIN_TOOL_IDS = new Set(['http_request', 'webhook_request'])
interface Violation {
file: string
line: number
expression: string
}
export interface ToolSelfHopViolation {
file: string
line: number
toolId?: string
reason:
| 'same-origin-tool-request'
| 'legacy-internal-policy'
| 'retired-direct-execution'
| 'unresolved-request-policy'
| 'unapproved-same-origin-policy'
}
export interface ToolSelfHopAudit {
violations: ToolSelfHopViolation[]
detectedSelfHops: number
legacyInternalPolicies: number
}
interface SyntaxNode extends Record<string, unknown> {
type: string
start?: number | null
end?: number | null
loc?: { start: { line: number } } | null
}
function isProductionSource(path: string): boolean {
const normalized = path.replaceAll('\\', '/')
return (
SOURCE_EXTENSIONS.has(extname(path)) &&
!normalized.endsWith('.d.ts') &&
!/\.(?:test|spec)\.(?:[cm]?[jt]s|[jt]sx)$/.test(normalized) &&
!normalized.includes('/__tests__/')
)
}
function collectProductionSources(dir: string, found: string[] = []): string[] {
for (const entry of readdirSync(dir, { withFileTypes: true })) {
if (entry.name === 'node_modules' || entry.name === '.next') {
continue
}
const path = join(dir, entry.name)
if (entry.isDirectory()) collectProductionSources(path, found)
else if (isProductionSource(path)) found.push(path)
}
return found
}
function isSyntaxNode(value: unknown): value is SyntaxNode {
return (
typeof value === 'object' && value !== null && 'type' in value && typeof value.type === 'string'
)
}
function getChildNodes(node: SyntaxNode): SyntaxNode[] {
const children: SyntaxNode[] = []
for (const value of Object.values(node)) {
if (Array.isArray(value)) {
for (const item of value) {
if (isSyntaxNode(item)) children.push(item)
}
} else if (isSyntaxNode(value)) {
children.push(value)
}
}
return children
}
function unwrapExpression(expression: SyntaxNode): SyntaxNode {
let current = expression
while (
[
'ParenthesizedExpression',
'TSAsExpression',
'TSTypeAssertion',
'TSNonNullExpression',
'TSSatisfiesExpression',
'TypeCastExpression',
].includes(current.type) &&
isSyntaxNode(current.expression)
) {
current = current.expression
}
return current
}
function getStaticPropertyName(property: SyntaxNode): string | undefined {
if (!isSyntaxNode(property.key)) return undefined
const key = property.key
if (property.computed === true) return getStaticString(key)
if (key.type === 'Identifier' && typeof key.name === 'string') return key.name
if (key.type === 'StringLiteral' && typeof key.value === 'string') return key.value
return undefined
}
function getObjectProperty(object: SyntaxNode, name: string): SyntaxNode | undefined {
if (object.type !== 'ObjectExpression' || !Array.isArray(object.properties)) return undefined
return object.properties.find(
(property): property is SyntaxNode =>
isSyntaxNode(property) &&
property.type === 'ObjectProperty' &&
getStaticPropertyName(property) === name
)
}
function getStringPrefix(expression: SyntaxNode): string | undefined {
const current = unwrapExpression(expression)
if (current.type === 'StringLiteral' && typeof current.value === 'string') {
return current.value
}
if (
current.type === 'TemplateLiteral' &&
Array.isArray(current.quasis) &&
current.quasis.length > 0 &&
isSyntaxNode(current.quasis[0])
) {
const value = current.quasis[0].value
if (typeof value === 'object' && value !== null) {
if ('cooked' in value && typeof value.cooked === 'string') return value.cooked
if ('raw' in value && typeof value.raw === 'string') return value.raw
}
}
return undefined
}
function getStaticString(expression: SyntaxNode): string | undefined {
const current = unwrapExpression(expression)
if (current.type === 'StringLiteral' && typeof current.value === 'string') return current.value
if (
current.type === 'TemplateLiteral' &&
Array.isArray(current.expressions) &&
current.expressions.length === 0 &&
Array.isArray(current.quasis)
) {
return current.quasis
.filter(isSyntaxNode)
.map((quasi) => {
const value = quasi.value
if (typeof value !== 'object' || value === null) return ''
return 'cooked' in value && typeof value.cooked === 'string'
? value.cooked
: 'raw' in value && typeof value.raw === 'string'
? value.raw
: ''
})
.join('')
}
if (
current.type === 'BinaryExpression' &&
current.operator === '+' &&
isSyntaxNode(current.left) &&
isSyntaxNode(current.right)
) {
const left = getStaticString(current.left)
const right = getStaticString(current.right)
return left !== undefined && right !== undefined ? left + right : undefined
}
return undefined
}
interface SelfHopResolver {
bindings: ReadonlyMap<string, SyntaxNode>
importedBindings: ReadonlyMap<string, ImportedBinding>
simOriginBindings: ReadonlySet<string>
simUrlBuilderBindings: ReadonlySet<string>
file: string
locals?: ReadonlyMap<string, SyntaxNode>
scopedLocals?: ReadonlyMap<string, ScopedExpression>
}
interface ImportedBinding {
importedName: string
source: string
}
function resolveScopedIdentifier(
name: string,
resolver: SelfHopResolver
): ScopedExpression | undefined {
const scopedLocal = resolver.scopedLocals?.get(name)
if (scopedLocal) return scopedLocal
const local = resolver.locals?.get(name)
if (local) return { expression: local, resolver }
const binding = resolver.bindings.get(name)
if (binding) return { expression: binding, resolver }
return loadImportedBinding(name, resolver)
}
function resolveScopedArgument(
expression: SyntaxNode,
resolver: SelfHopResolver
): ScopedExpression {
const current = unwrapExpression(expression)
if (current.type === 'Identifier' && typeof current.name === 'string') {
return resolveScopedIdentifier(current.name, resolver) ?? { expression: current, resolver }
}
return { expression: current, resolver }
}
function collectFunctionLocalBindings(fn: SyntaxNode, locals: Map<string, SyntaxNode>): void {
const visit = (node: SyntaxNode) => {
if (node !== fn && FUNCTION_NODE_TYPES.has(node.type)) return
if (
node.type === 'VariableDeclarator' &&
isSyntaxNode(node.id) &&
node.id.type === 'Identifier' &&
typeof node.id.name === 'string' &&
isSyntaxNode(node.init)
) {
locals.set(node.id.name, node.init)
}
for (const child of getChildNodes(node)) visit(child)
}
visit(fn)
}
function isInternalPathExpression(
expression: SyntaxNode,
resolver: SelfHopResolver,
seen = new Set<string>(),
allowRelative = false
): boolean {
const current = unwrapExpression(expression)
const staticValue = getStaticString(current)
if (staticValue && isInternalApiPath(staticValue, allowRelative)) return true
const prefix = getStringPrefix(current)
if (prefix && isInternalApiPath(prefix, allowRelative)) return true
if (current.type === 'Identifier' && typeof current.name === 'string') {
const key = `${resolver.file}:path:${current.name}`
if (seen.has(key)) return false
const binding = resolveScopedIdentifier(current.name, resolver)
if (!binding) return false
const nextSeen = new Set(seen)
nextSeen.add(key)
return isInternalPathExpression(binding.expression, binding.resolver, nextSeen, allowRelative)
}
if (current.type === 'CallExpression' || current.type === 'OptionalCallExpression') {
if (!isSyntaxNode(current.callee)) return false
const callee = unwrapExpression(current.callee)
if (callee.type === 'Identifier' && typeof callee.name === 'string') {
const key = `${resolver.file}:path-call:${callee.name}`
if (seen.has(key)) return false
const binding = resolveScopedIdentifier(callee.name, resolver)
if (binding && FUNCTION_NODE_TYPES.has(unwrapExpression(binding.expression).type)) {
const nextSeen = new Set(seen)
nextSeen.add(key)
const argumentsList = Array.isArray(current.arguments)
? current.arguments
.filter(isSyntaxNode)
.map((argument) => resolveScopedArgument(argument, resolver))
: []
return functionReturnsInternalPath(
binding.expression,
binding.resolver,
argumentsList,
nextSeen,
allowRelative
)
}
}
}
if (current.type === 'ConditionalExpression') {
return (
(isSyntaxNode(current.consequent) &&
isInternalPathExpression(current.consequent, resolver, new Set(seen), allowRelative)) ||
(isSyntaxNode(current.alternate) &&
isInternalPathExpression(current.alternate, resolver, new Set(seen), allowRelative))
)
}
if (current.type === 'LogicalExpression') {
return (
(isSyntaxNode(current.left) &&
isInternalPathExpression(current.left, resolver, new Set(seen), allowRelative)) ||
(isSyntaxNode(current.right) &&
isInternalPathExpression(current.right, resolver, new Set(seen), allowRelative))
)
}
if (current.type === 'BinaryExpression' && current.operator === '+') {
return isSyntaxNode(current.left)
? isInternalPathExpression(current.left, resolver, new Set(seen), allowRelative)
: false
}
return false
}
function functionReturnsInternalPath(
fn: SyntaxNode,
resolver: SelfHopResolver,
argumentsList: readonly ScopedExpression[],
seen: ReadonlySet<string>,
allowRelative: boolean
): boolean {
const current = unwrapExpression(fn)
if (!FUNCTION_NODE_TYPES.has(current.type)) return false
const locals = new Map(resolver.locals)
const scopedLocals = new Map(resolver.scopedLocals)
const parameters = Array.isArray(current.params) ? current.params : []
for (const [index, parameter] of parameters.entries()) {
if (
isSyntaxNode(parameter) &&
parameter.type === 'Identifier' &&
typeof parameter.name === 'string' &&
argumentsList[index]
) {
const argument = argumentsList[index]
scopedLocals.set(parameter.name, argument)
if (argument.resolver === resolver) locals.set(parameter.name, argument.expression)
}
}
collectFunctionLocalBindings(current, locals)
const localResolver = { ...resolver, locals, scopedLocals }
if (current.type === 'ArrowFunctionExpression' && isSyntaxNode(current.body)) {
const body = unwrapExpression(current.body)
if (body.type !== 'BlockStatement') {
return isInternalPathExpression(body, localResolver, new Set(seen), allowRelative)
}
}
let found = false
const visit = (node: SyntaxNode) => {
if (found || (node !== current && FUNCTION_NODE_TYPES.has(node.type))) return
if (
node.type === 'ReturnStatement' &&
isSyntaxNode(node.argument) &&
isInternalPathExpression(node.argument, localResolver, new Set(seen), allowRelative)
) {
found = true
return
}
for (const child of getChildNodes(node)) visit(child)
}
visit(current)
return found
}
function isInternalApiPath(value: string, allowRelative: boolean): boolean {
if (value.startsWith('/api/')) return true
if (!allowRelative) return false
try {
const base = new URL('https://sim-boundary.invalid/')
const resolved = new URL(value, base)
return resolved.origin === base.origin && resolved.pathname.startsWith('/api/')
} catch {
return false
}
}
function isOriginPreservingStaticSuffix(expression: SyntaxNode): boolean {
const suffix = getStaticString(expression)
return suffix !== undefined && (suffix === '' || /^[/?#]/.test(suffix))
}
function isSimOriginExpression(
expression: SyntaxNode,
resolver: SelfHopResolver,
seen = new Set<string>()
): boolean {
const current = unwrapExpression(expression)
if (current.type === 'Identifier' && typeof current.name === 'string') {
const key = `${resolver.file}:origin:${current.name}`
if (seen.has(key)) return false
const binding = resolveScopedIdentifier(current.name, resolver)
if (!binding) return false
const nextSeen = new Set(seen)
nextSeen.add(key)
return isSimOriginExpression(binding.expression, binding.resolver, nextSeen)
}
if (current.type === 'CallExpression' || current.type === 'OptionalCallExpression') {
if (!isSyntaxNode(current.callee)) return false
const callee = unwrapExpression(current.callee)
if (
callee.type === 'Identifier' &&
typeof callee.name === 'string' &&
resolver.simOriginBindings.has(callee.name)
) {
return true
}
if (callee.type === 'Identifier' && typeof callee.name === 'string') {
const key = `${resolver.file}:origin-call:${callee.name}`
if (seen.has(key)) return false
const binding = resolveScopedIdentifier(callee.name, resolver)
if (binding && FUNCTION_NODE_TYPES.has(unwrapExpression(binding.expression).type)) {
const nextSeen = new Set(seen)
nextSeen.add(key)
const argumentsList = Array.isArray(current.arguments)
? current.arguments
.filter(isSyntaxNode)
.map((argument) => resolveScopedArgument(argument, resolver))
: []
return functionReturnsSimOrigin(
binding.expression,
binding.resolver,
argumentsList,
nextSeen
)
}
}
}
if (
current.type === 'BinaryExpression' &&
current.operator === '+' &&
isSyntaxNode(current.left) &&
isSyntaxNode(current.right)
) {
return (
isSimOriginExpression(current.left, resolver, new Set(seen)) &&
isOriginPreservingStaticSuffix(current.right)
)
}
if (
current.type === 'TemplateLiteral' &&
Array.isArray(current.expressions) &&
Array.isArray(current.quasis) &&
current.expressions.length > 0 &&
current.quasis.length === current.expressions.length + 1 &&
current.expressions.every(isSyntaxNode) &&
current.quasis.every(isSyntaxNode) &&
getTemplateQuasiValue(current.quasis[0]) === '' &&
isSimOriginExpression(current.expressions[0], resolver, new Set(seen))
) {
const suffix = getTemplateQuasiValue(current.quasis[1])
return (
suffix !== undefined &&
(suffix === '' ? current.expressions.length === 1 : /^[/?#]/.test(suffix))
)
}
if (current.type === 'ConditionalExpression') {
return (
(isSyntaxNode(current.consequent) &&
isSimOriginExpression(current.consequent, resolver, new Set(seen))) ||
(isSyntaxNode(current.alternate) &&
isSimOriginExpression(current.alternate, resolver, new Set(seen)))
)
}
if (current.type === 'LogicalExpression') {
return (
(isSyntaxNode(current.left) &&
isSimOriginExpression(current.left, resolver, new Set(seen))) ||
(isSyntaxNode(current.right) && isSimOriginExpression(current.right, resolver, new Set(seen)))
)
}
return false
}
function functionReturnsSimOrigin(
fn: SyntaxNode,
resolver: SelfHopResolver,
argumentsList: readonly ScopedExpression[],
seen: ReadonlySet<string>
): boolean {
const current = unwrapExpression(fn)
if (!FUNCTION_NODE_TYPES.has(current.type)) return false
const locals = new Map(resolver.locals)
const scopedLocals = new Map(resolver.scopedLocals)
const parameters = Array.isArray(current.params) ? current.params : []
for (const [index, parameter] of parameters.entries()) {
if (
isSyntaxNode(parameter) &&
parameter.type === 'Identifier' &&
typeof parameter.name === 'string' &&
argumentsList[index]
) {
const argument = argumentsList[index]
scopedLocals.set(parameter.name, argument)
if (argument.resolver === resolver) locals.set(parameter.name, argument.expression)
}
}
collectFunctionLocalBindings(current, locals)
const localResolver = { ...resolver, locals, scopedLocals }
if (current.type === 'ArrowFunctionExpression' && isSyntaxNode(current.body)) {
const body = unwrapExpression(current.body)
if (body.type !== 'BlockStatement') {
return isSimOriginExpression(body, localResolver, new Set(seen))
}
}
let found = false
const visit = (node: SyntaxNode) => {
if (found || (node !== current && FUNCTION_NODE_TYPES.has(node.type))) return
if (
node.type === 'ReturnStatement' &&
isSyntaxNode(node.argument) &&
isSimOriginExpression(node.argument, localResolver, new Set(seen))
) {
found = true
return
}
for (const child of getChildNodes(node)) visit(child)
}
visit(current)
return found
}
function isSameOriginConcatenation(expression: SyntaxNode, resolver: SelfHopResolver): boolean {
const current = unwrapExpression(expression)
const parts: SyntaxNode[] = []
const collect = (node: SyntaxNode) => {
const value = unwrapExpression(node)
if (
value.type === 'BinaryExpression' &&
value.operator === '+' &&
isSyntaxNode(value.left) &&
isSyntaxNode(value.right)
) {
collect(value.left)
collect(value.right)
return
}
parts.push(value)
}
collect(current)
if (parts.length < 2 || !isSimOriginExpression(parts[0], resolver)) return false
let staticSuffix = ''
for (const part of parts.slice(1)) {
const value = getStaticString(part)
if (value !== undefined) {
staticSuffix += value
if (staticSuffix.startsWith('/api/')) return true
continue
}
if (isInternalPathExpression(part, resolver)) return true
break
}
return false
}
function isKnownSimUrlBuilderCall(expression: SyntaxNode, resolver: SelfHopResolver): boolean {
const current = unwrapExpression(expression)
if (
(current.type !== 'CallExpression' && current.type !== 'OptionalCallExpression') ||
!isSyntaxNode(current.callee) ||
!Array.isArray(current.arguments) ||
!isSyntaxNode(current.arguments[0])
) {
return false
}
const callee = unwrapExpression(current.callee)
return (
callee.type === 'Identifier' &&
typeof callee.name === 'string' &&
resolver.simUrlBuilderBindings.has(callee.name) &&
isInternalPathExpression(current.arguments[0], resolver)
)
}
function getTemplateQuasiValue(quasi: SyntaxNode): string | undefined {
const value = quasi.value
if (typeof value !== 'object' || value === null) return undefined
if ('cooked' in value && typeof value.cooked === 'string') return value.cooked
return 'raw' in value && typeof value.raw === 'string' ? value.raw : undefined
}
function isSameOriginTemplate(expression: SyntaxNode, resolver: SelfHopResolver): boolean {
const current = unwrapExpression(expression)
if (
current.type !== 'TemplateLiteral' ||
!Array.isArray(current.expressions) ||
!Array.isArray(current.quasis) ||
current.expressions.length === 0 ||
current.quasis.length !== current.expressions.length + 1 ||
!current.expressions.every(isSyntaxNode) ||
!current.quasis.every(isSyntaxNode)
) {
return false
}
const leadingQuasi = getTemplateQuasiValue(current.quasis[0])
if (leadingQuasi !== '') return false
const origin = current.expressions[0]
if (!isSimOriginExpression(origin, resolver)) return false
const pathQuasi = getTemplateQuasiValue(current.quasis[1])
if (pathQuasi?.startsWith('/api/')) return true
return (
pathQuasi === '' &&
current.expressions.length > 1 &&
isInternalPathExpression(current.expressions[1], resolver)
)
}
function isInternalUrlConstruction(node: SyntaxNode, resolver: SelfHopResolver): boolean {
const current = unwrapExpression(node)
if (
current.type !== 'NewExpression' ||
!isSyntaxNode(current.callee) ||
current.callee.type !== 'Identifier' ||
current.callee.name !== 'URL' ||
!Array.isArray(current.arguments) ||
!isSyntaxNode(current.arguments[0])
) {
return false
}
if (current.arguments.length === 1) {
return (
isSameOriginConcatenation(current.arguments[0], resolver) ||
isSameOriginTemplate(current.arguments[0], resolver) ||
isKnownSimUrlBuilderCall(current.arguments[0], resolver)
)
}
return (
isSyntaxNode(current.arguments[1]) &&
isInternalPathExpression(current.arguments[0], resolver, new Set(), true) &&
isSimOriginExpression(current.arguments[1], resolver)
)
}
function hasExplicitExternalUrlPrefix(
expression: SyntaxNode,
resolver: SelfHopResolver,
seen = new Set<string>()
): boolean {
const current = unwrapExpression(expression)
const staticValue = getStaticString(current)
if (staticValue !== undefined) return /^https?:\/\//.test(staticValue)
const prefix = getStringPrefix(current)
if (prefix !== undefined && /^https?:\/\//.test(prefix)) return true
if (current.type === 'Identifier' && typeof current.name === 'string') {
const key = `${resolver.file}:external-origin:${current.name}`
if (seen.has(key)) return false
const binding = resolveScopedIdentifier(current.name, resolver)
if (!binding) return false
const nextSeen = new Set(seen)
nextSeen.add(key)
return hasExplicitExternalUrlPrefix(binding.expression, binding.resolver, nextSeen)
}
if (
current.type === 'BinaryExpression' &&
current.operator === '+' &&
isSyntaxNode(current.left)
) {
return hasExplicitExternalUrlPrefix(current.left, resolver, new Set(seen))
}
if (current.type === 'ConditionalExpression') {
return (
isSyntaxNode(current.consequent) &&
isSyntaxNode(current.alternate) &&
hasExplicitExternalUrlPrefix(current.consequent, resolver, new Set(seen)) &&
hasExplicitExternalUrlPrefix(current.alternate, resolver, new Set(seen))
)
}
if (current.type === 'LogicalExpression') {
return (
isSyntaxNode(current.left) &&
isSyntaxNode(current.right) &&
hasExplicitExternalUrlPrefix(current.left, resolver, new Set(seen)) &&
hasExplicitExternalUrlPrefix(current.right, resolver, new Set(seen))
)
}
if (
current.type === 'TemplateLiteral' &&
Array.isArray(current.expressions) &&
Array.isArray(current.quasis) &&
current.expressions.length > 0 &&
current.quasis.length === current.expressions.length + 1 &&
current.expressions.every(isSyntaxNode) &&
current.quasis.every(isSyntaxNode) &&
getTemplateQuasiValue(current.quasis[0]) === '' &&
hasExplicitExternalUrlPrefix(current.expressions[0], resolver, new Set(seen))
) {
const suffix = getTemplateQuasiValue(current.quasis[1])
return (
suffix !== undefined &&
(suffix === '' ? current.expressions.length === 1 : /^[/?#]/.test(suffix))
)
}
return false
}
function expressionContainsUnresolvedUrlHelper(
expression: SyntaxNode,
resolver: SelfHopResolver,
seen = new Set<string>(),
unresolvedIdentifierIsUnsafe = false
): boolean {
const current = unwrapExpression(expression)
if (hasExplicitExternalUrlPrefix(current, resolver)) return false
if (current.type === 'Identifier' && typeof current.name === 'string') {
const key = `${resolver.file}:unresolved-url:${current.name}`
if (seen.has(key)) return false
const binding = resolveScopedIdentifier(current.name, resolver)
if (!binding) return unresolvedIdentifierIsUnsafe
const nextSeen = new Set(seen)
nextSeen.add(key)
return expressionContainsUnresolvedUrlHelper(
binding.expression,
binding.resolver,
nextSeen,
unresolvedIdentifierIsUnsafe
)
}
if (current.type === 'ConditionalExpression') {
return (
(isSyntaxNode(current.consequent) &&
expressionContainsUnresolvedUrlHelper(
current.consequent,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)) ||
(isSyntaxNode(current.alternate) &&
expressionContainsUnresolvedUrlHelper(
current.alternate,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
))
)
}
if (current.type === 'LogicalExpression') {
return (
(isSyntaxNode(current.left) &&
expressionContainsUnresolvedUrlHelper(
current.left,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)) ||
(isSyntaxNode(current.right) &&
expressionContainsUnresolvedUrlHelper(
current.right,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
))
)
}
if (
current.type === 'BinaryExpression' &&
current.operator === '+' &&
isSyntaxNode(current.left)
) {
if (isSimOriginExpression(current.left, resolver) && isSyntaxNode(current.right)) {
return expressionContainsUnresolvedUrlHelper(current.right, resolver, new Set(seen), true)
}
if (unresolvedIdentifierIsUnsafe && isSyntaxNode(current.right)) {
return (
expressionContainsUnresolvedUrlHelper(current.left, resolver, new Set(seen), true) ||
expressionContainsUnresolvedUrlHelper(current.right, resolver, new Set(seen), true)
)
}
return expressionContainsUnresolvedUrlHelper(
current.left,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
}
if (
current.type === 'TemplateLiteral' &&
Array.isArray(current.expressions) &&
Array.isArray(current.quasis) &&
current.expressions.every(isSyntaxNode) &&
current.quasis.every(isSyntaxNode) &&
current.expressions.length > 0 &&
current.quasis.length === current.expressions.length + 1
) {
const leading = getTemplateQuasiValue(current.quasis[0])
if (leading !== '') {
return (
unresolvedIdentifierIsUnsafe &&
current.expressions.some((part) =>
expressionContainsUnresolvedUrlHelper(part, resolver, new Set(seen), true)
)
)
}
const origin = current.expressions[0]
if (isSimOriginExpression(origin, resolver)) {
const following = getTemplateQuasiValue(current.quasis[1])
return (
following === '' &&
current.expressions.length > 1 &&
expressionContainsUnresolvedUrlHelper(current.expressions[1], resolver, new Set(seen), true)
)
}
return expressionContainsUnresolvedUrlHelper(
origin,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
}
if (current.type === 'CallExpression' || current.type === 'OptionalCallExpression') {
if (!isSyntaxNode(current.callee)) return true
const callee = unwrapExpression(current.callee)
if (callee.type === 'Identifier' && typeof callee.name === 'string') {
if (
resolver.simOriginBindings.has(callee.name) ||
resolver.simUrlBuilderBindings.has(callee.name)
) {
return false
}
if (URL_VALUE_WRAPPER_CALLS.has(callee.name)) {
if (unresolvedIdentifierIsUnsafe && callee.name === 'encodeURIComponent') return false
const firstArgument = Array.isArray(current.arguments)
? current.arguments.find(isSyntaxNode)
: undefined
return firstArgument
? expressionContainsUnresolvedUrlHelper(
firstArgument,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
: false
}
const key = `${resolver.file}:unresolved-url-call:${callee.name}`
if (seen.has(key)) return false
const binding = resolveScopedIdentifier(callee.name, resolver)
if (!binding || !FUNCTION_NODE_TYPES.has(unwrapExpression(binding.expression).type)) {
return true
}
const nextSeen = new Set(seen)
nextSeen.add(key)
const argumentsList = Array.isArray(current.arguments)
? current.arguments
.filter(isSyntaxNode)
.map((argument) => resolveScopedArgument(argument, resolver))
: []
return functionContainsUnresolvedUrlHelper(
binding.expression,
binding.resolver,
nextSeen,
argumentsList,
unresolvedIdentifierIsUnsafe
)
}
const access = getStaticMemberAccess(callee)
if (!access) return true
return expressionContainsUnresolvedUrlHelper(
access.target,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
}
if (current.type === 'NewExpression') {
if (
isSyntaxNode(current.callee) &&
current.callee.type === 'Identifier' &&
current.callee.name === 'URL' &&
Array.isArray(current.arguments)
) {
if (
current.arguments.length > 1 &&
isSyntaxNode(current.arguments[1]) &&
hasExplicitExternalUrlPrefix(current.arguments[1], resolver)
) {
return false
}
const path = current.arguments.find(isSyntaxNode)
const base = current.arguments.length > 1 ? current.arguments[1] : undefined
if (isSyntaxNode(base)) {
return isSimOriginExpression(base, resolver)
? Boolean(
path && expressionContainsUnresolvedUrlHelper(path, resolver, new Set(seen), true)
)
: expressionContainsUnresolvedUrlHelper(
base,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
}
return path
? expressionContainsUnresolvedUrlHelper(
path,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
: false
}
return true
}
if (current.type === 'MemberExpression' || current.type === 'OptionalMemberExpression') {
const access = getStaticMemberAccess(current)
return access
? expressionContainsUnresolvedUrlHelper(
access.target,
resolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
: unresolvedIdentifierIsUnsafe
}
if (FUNCTION_NODE_TYPES.has(current.type)) {
return functionContainsUnresolvedUrlHelper(
current,
resolver,
seen,
[],
unresolvedIdentifierIsUnsafe
)
}
return false
}
function functionContainsUnresolvedUrlHelper(
fn: SyntaxNode,
resolver: SelfHopResolver,
seen: ReadonlySet<string>,
argumentsList: readonly ScopedExpression[] = [],
unresolvedIdentifierIsUnsafe = false
): boolean {
const current = unwrapExpression(fn)
if (!FUNCTION_NODE_TYPES.has(current.type)) return true
const locals = new Map(resolver.locals)
const scopedLocals = new Map(resolver.scopedLocals)
const parameters = Array.isArray(current.params) ? current.params : []
for (const [index, parameter] of parameters.entries()) {
if (
isSyntaxNode(parameter) &&
parameter.type === 'Identifier' &&
typeof parameter.name === 'string' &&
argumentsList[index]
) {
const argument = argumentsList[index]
scopedLocals.set(parameter.name, argument)
if (argument.resolver === resolver) locals.set(parameter.name, argument.expression)
}
}
collectFunctionLocalBindings(current, locals)
const localResolver = { ...resolver, locals, scopedLocals }
if (current.type === 'ArrowFunctionExpression' && isSyntaxNode(current.body)) {
const body = unwrapExpression(current.body)
if (body.type !== 'BlockStatement') {
return expressionContainsUnresolvedUrlHelper(
body,
localResolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
}
}
let unresolved = false
const visit = (node: SyntaxNode) => {
if (unresolved || (node !== current && FUNCTION_NODE_TYPES.has(node.type))) return
if (
node.type === 'ReturnStatement' &&
isSyntaxNode(node.argument) &&
expressionContainsUnresolvedUrlHelper(
node.argument,
localResolver,
new Set(seen),
unresolvedIdentifierIsUnsafe
)
) {
unresolved = true
return
}
for (const child of getChildNodes(node)) visit(child)
}
visit(current)
return unresolved
}
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