chore: import upstream snapshot with attribution

apps/sim/executor/handlers/api/api-handler.ts

@@ -0,0 +1,166 @@
+import { createLogger } from '@sim/logger'
+import { validateUrlWithDNS } from '@/lib/core/security/input-validation.server'
+import { BlockType, HTTP } from '@/executor/constants'
+import type { BlockHandler, ExecutionContext } from '@/executor/types'
+import type { SerializedBlock } from '@/serializer/types'
+import { executeTool } from '@/tools'
+import { getTool } from '@/tools/utils'
+
+const logger = createLogger('ApiBlockHandler')
+
+/**
+ * Handler for API blocks that make external HTTP requests.
+ */
+export class ApiBlockHandler implements BlockHandler {
+  canHandle(block: SerializedBlock): boolean {
+    return block.metadata?.id === BlockType.API
+  }
+
+  async execute(
+    ctx: ExecutionContext,
+    block: SerializedBlock,
+    inputs: Record<string, any>
+  ): Promise<any> {
+    const tool = getTool(block.config.tool)
+    if (!tool) {
+      throw new Error(`Tool not found: ${block.config.tool}`)
+    }
+
+    if (tool.name?.includes('HTTP') && (!inputs.url || inputs.url.trim() === '')) {
+      return { data: null, status: HTTP.STATUS.OK, headers: {} }
+    }
+
+    if (tool.name?.includes('HTTP') && inputs.url) {
+      let urlToValidate = inputs.url
+      if (typeof urlToValidate === 'string') {
+        if (
+          (urlToValidate.startsWith('"') && urlToValidate.endsWith('"')) ||
+          (urlToValidate.startsWith("'") && urlToValidate.endsWith("'"))
+        ) {
+          urlToValidate = urlToValidate.slice(1, -1)
+          inputs.url = urlToValidate
+        }
+      }
+
+      const urlValidation = await validateUrlWithDNS(urlToValidate, 'url')
+      if (!urlValidation.isValid) {
+        throw new Error(urlValidation.error)
+      }
+    }
+
+    try {
+      const processedInputs = { ...inputs }
+
+      if (processedInputs.body !== undefined) {
+        if (typeof processedInputs.body === 'string') {
+          try {
+            const trimmedBody = processedInputs.body.trim()
+            if (trimmedBody.startsWith('{') || trimmedBody.startsWith('[')) {
+              processedInputs.body = JSON.parse(trimmedBody)
+            }
+          } catch (e) {}
+        } else if (processedInputs.body === null) {
+          processedInputs.body = undefined
+        }
+      }
+
+      const result = await executeTool(
+        block.config.tool,
+        {
+          ...processedInputs,
+          _context: {
+            workflowId: ctx.workflowId,
+            workspaceId: ctx.workspaceId,
+            executionId: ctx.executionId,
+            userId: ctx.userId,
+            isDeployedContext: ctx.isDeployedContext,
+            enforceCredentialAccess: ctx.enforceCredentialAccess,
+            callChain: ctx.callChain,
+          },
+        },
+        { executionContext: ctx }
+      )
+
+      if (!result.success) {
+        const errorDetails = []
+
+        if (inputs.url) errorDetails.push(`URL: ${inputs.url}`)
+        if (inputs.method) errorDetails.push(`Method: ${inputs.method}`)
+
+        if (result.error) errorDetails.push(`Error: ${result.error}`)
+        if (result.output?.status) errorDetails.push(`Status: ${result.output.status}`)
+        if (result.output?.statusText) errorDetails.push(`Status text: ${result.output.statusText}`)
+
+        let suggestion = ''
+        if (result.output?.status === HTTP.STATUS.FORBIDDEN) {
+          suggestion = ' - This may be due to CORS restrictions or authorization issues'
+        } else if (result.output?.status === HTTP.STATUS.NOT_FOUND) {
+          suggestion = ' - The requested resource was not found'
+        } else if (result.output?.status === HTTP.STATUS.TOO_MANY_REQUESTS) {
+          suggestion = ' - Too many requests, you may need to implement rate limiting'
+        } else if (result.output?.status >= HTTP.STATUS.SERVER_ERROR) {
+          suggestion = ' - Server error, the target server is experiencing issues'
+        } else if (result.error?.includes('CORS')) {
+          suggestion =
+            ' - CORS policy prevented the request, try using a proxy or server-side request'
+        } else if (result.error?.includes('Failed to fetch')) {
+          suggestion =
+            ' - Network error, check if the URL is accessible and if you have internet connectivity'
+        }
+
+        const errorMessage =
+          errorDetails.length > 0
+            ? `HTTP Request failed: ${errorDetails.join(' | ')}${suggestion}`
+            : `API request to ${tool.name || block.config.tool} failed with no error message`
+
+        const error = new Error(errorMessage)
+
+        Object.assign(error, {
+          toolId: block.config.tool,
+          toolName: tool.name || 'Unknown tool',
+          blockId: block.id,
+          blockName: block.metadata?.name || 'Unnamed Block',
+          output: result.output || {},
+          status: result.output?.status || null,
+          request: {
+            url: inputs.url,
+            method: inputs.method || 'GET',
+          },
+          timestamp: new Date().toISOString(),
+        })
+
+        throw error
+      }
+
+      return result.output
+    } catch (error: any) {
+      if (!error.message || error.message === 'undefined (undefined)') {
+        let errorMessage = `API request to ${tool.name || block.config.tool} failed`
+
+        if (inputs.url) errorMessage += `: ${inputs.url}`
+        if (error.status) errorMessage += ` (Status: ${error.status})`
+        if (error.statusText) errorMessage += ` - ${error.statusText}`
+
+        if (errorMessage === `API request to ${tool.name || block.config.tool} failed`) {
+          errorMessage += ` - ${block.metadata?.name || 'Unknown error'}`
+        }
+
+        error.message = errorMessage
+      }
+
+      if (typeof error === 'object' && error !== null) {
+        if (!error.toolId) error.toolId = block.config.tool
+        if (!error.blockName) error.blockName = block.metadata?.name || 'Unnamed Block'
+
+        if (inputs && !error.request) {
+          error.request = {
+            url: inputs.url,
+            method: inputs.method || 'GET',
+          }
+        }
+      }
+
+      throw error
+    }
+  }
+}