@langchain/community/dist/llms/layerup_security.cjs.map

Third-party integrations for LangChain.js

{"version":3,"file":"layerup_security.cjs","names":["LLM","LayerupSecuritySDK"],"sources":["../../src/llms/layerup_security.ts"],"sourcesContent":["import {\n  LLM,\n  BaseLLM,\n  type BaseLLMCallOptions,\n} from \"@langchain/core/language_models/llms\";\nimport {\n  GuardrailResponse,\n  LayerupSecurity as LayerupSecuritySDK,\n  LLMMessage,\n} from \"@layerup/layerup-security\";\n\nexport interface LayerupSecurityOptions extends BaseLLMCallOptions {\n  llm: BaseLLM;\n  layerupApiKey?: string;\n  layerupApiBaseUrl?: string;\n  promptGuardrails?: string[];\n  responseGuardrails?: string[];\n  mask?: boolean;\n  metadata?: Record<string, unknown>;\n  handlePromptGuardrailViolation?: (violation: GuardrailResponse) => LLMMessage;\n  handleResponseGuardrailViolation?: (\n    violation: GuardrailResponse\n  ) => LLMMessage;\n}\n\nfunction defaultGuardrailViolationHandler(\n  violation: GuardrailResponse\n): LLMMessage {\n  if (violation.canned_response) return violation.canned_response;\n\n  const guardrailName = violation.offending_guardrail\n    ? `Guardrail ${violation.offending_guardrail}`\n    : \"A guardrail\";\n  throw new Error(\n    `${guardrailName} was violated without a proper guardrail violation handler.`\n  );\n}\n\nexport class LayerupSecurity extends LLM {\n  static lc_name() {\n    return \"LayerupSecurity\";\n  }\n\n  lc_serializable = true;\n\n  llm: BaseLLM;\n\n  layerupApiKey: string;\n\n  layerupApiBaseUrl = \"https://api.uselayerup.com/v1\";\n\n  promptGuardrails: string[] = [];\n\n  responseGuardrails: string[] = [];\n\n  mask = false;\n\n  metadata: Record<string, unknown> = {};\n\n  handlePromptGuardrailViolation: (violation: GuardrailResponse) => LLMMessage =\n    defaultGuardrailViolationHandler;\n\n  handleResponseGuardrailViolation: (\n    violation: GuardrailResponse\n  ) => LLMMessage = defaultGuardrailViolationHandler;\n\n  private layerup: LayerupSecuritySDK;\n\n  constructor(options: LayerupSecurityOptions) {\n    super(options);\n\n    if (!options.llm) {\n      throw new Error(\"Layerup Security requires an LLM to be provided.\");\n    } else if (!options.layerupApiKey) {\n      throw new Error(\"Layerup Security requires an API key to be provided.\");\n    }\n\n    this.llm = options.llm;\n    this.layerupApiKey = options.layerupApiKey;\n    this.layerupApiBaseUrl =\n      options.layerupApiBaseUrl || this.layerupApiBaseUrl;\n    this.promptGuardrails = options.promptGuardrails || this.promptGuardrails;\n    this.responseGuardrails =\n      options.responseGuardrails || this.responseGuardrails;\n    this.mask = options.mask || this.mask;\n    this.metadata = options.metadata || this.metadata;\n    this.handlePromptGuardrailViolation =\n      options.handlePromptGuardrailViolation ||\n      this.handlePromptGuardrailViolation;\n    this.handleResponseGuardrailViolation =\n      options.handleResponseGuardrailViolation ||\n      this.handleResponseGuardrailViolation;\n\n    this.layerup = new LayerupSecuritySDK({\n      apiKey: this.layerupApiKey,\n      baseURL: this.layerupApiBaseUrl,\n    });\n  }\n\n  _llmType() {\n    return \"layerup_security\";\n  }\n\n  async _call(input: string, options?: BaseLLMCallOptions): Promise<string> {\n    // Since LangChain LLMs only support string inputs, we will wrap each call to Layerup in a single-message\n    // array of messages, then extract the string element when we need to access it.\n    let messages: LLMMessage[] = [\n      {\n        role: \"user\",\n        content: input,\n      },\n    ];\n    let unmaskResponse;\n\n    if (this.mask) {\n      [messages, unmaskResponse] = await this.layerup.maskPrompt(\n        messages,\n        this.metadata\n      );\n    }\n\n    if (this.promptGuardrails.length > 0) {\n      const securityResponse = await this.layerup.executeGuardrails(\n        this.promptGuardrails,\n        messages,\n        input,\n        this.metadata\n      );\n\n      // If there is a guardrail violation, extract the canned response and reply with that instead\n      if (!securityResponse.all_safe) {\n        const replacedResponse: LLMMessage =\n          this.handlePromptGuardrailViolation(securityResponse);\n        return replacedResponse.content as string;\n      }\n    }\n\n    // Invoke the underlying LLM with the prompt and options\n    let result = await this.llm.invoke(messages[0].content as string, options);\n\n    if (this.mask && unmaskResponse) {\n      result = unmaskResponse(result);\n    }\n\n    // Add to messages array for response guardrail handler\n    messages.push({\n      role: \"assistant\",\n      content: result,\n    });\n\n    if (this.responseGuardrails.length > 0) {\n      const securityResponse = await this.layerup.executeGuardrails(\n        this.responseGuardrails,\n        messages,\n        result,\n        this.metadata\n      );\n\n      // If there is a guardrail violation, extract the canned response and reply with that instead\n      if (!securityResponse.all_safe) {\n        const replacedResponse: LLMMessage =\n          this.handleResponseGuardrailViolation(securityResponse);\n        return replacedResponse.content as string;\n      }\n    }\n\n    return result;\n  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