@lock-dev/next-adapter/dist/index.mjs

Nextjs adapter module for lock.dev security framework

// src/index.ts
import { registerModule } from "@lock-dev/core";

// src/utils/index.ts
function createResponseProxy() {
  return {
    headersSent: false,
    writableEnded: false,
    statusCode: 200,
    headers: new Headers(),
    status(code) {
      this.statusCode = code;
      return this;
    },
    setHeader(name, value) {
      this.headers.set(name, value);
      return this;
    },
    json(body) {
      return new Response(JSON.stringify(body), {
        status: this.statusCode,
        headers: this.headers
      });
    }
  };
}
function extractSecurityMetadata(result) {
  if (result.event) {
    return {
      module: result.event.moduleName,
      reason: result.event.message,
      type: result.event.type,
      timestamp: new Date(result.event.timestamp).toISOString(),
      severity: result.event.severity,
      details: result.event.data || {}
    };
  } else {
    return {
      module: "unknown",
      reason: "Access denied by security policy",
      timestamp: (/* @__PURE__ */ new Date()).toISOString(),
      details: {}
    };
  }
}
function getErrorConfig(context, result) {
  let statusCode = 403;
  let errorMessage = "Access denied by security policy";
  if (result.event && result.event.moduleName) {
    const configKey = `${result.event.moduleName}:config`;
    const config = context.data.get(configKey);
    if (config) {
      statusCode = config.blockStatusCode || config.statusCode || statusCode;
      errorMessage = config.blockMessage || config.message || errorMessage;
    }
  }
  return { statusCode, errorMessage };
}
function createErrorData(context, result) {
  const metadata = extractSecurityMetadata(result);
  const { statusCode, errorMessage } = getErrorConfig(context, result);
  return {
    error: errorMessage,
    blocked: true,
    meta: metadata,
    statusCode
  };
}
function createErrorResponse(context, result) {
  const errorData = createErrorData(context, result);
  const headers = new Headers({
    "Content-Type": "application/json"
  });
  if (context.response && "headers" in context.response) {
    const responseHeaders = context.response.headers;
    if (responseHeaders instanceof Headers) {
      responseHeaders.forEach((value, key) => {
        headers.set(key, value);
      });
    } else if (typeof responseHeaders === "object") {
      Object.entries(responseHeaders).forEach(([key, value]) => {
        if (typeof value === "string") {
          headers.set(key, value);
        }
      });
    }
  }
  return new Response(JSON.stringify(errorData), {
    status: errorData.statusCode,
    headers
  });
}
function handleSecurityFailure(context, result, res) {
  if (!res.headersSent && !res.writableEnded) {
    const errorData = createErrorData(context, result);
    res.status(errorData.statusCode).json({
      error: errorData.error,
      blocked: true,
      meta: errorData.meta
    });
  }
}

// src/pages-router.ts
import { composeModules, createContext } from "@lock-dev/core";
function securePagesApi(handler) {
  return (...modules) => {
    const composedModule = composeModules(...modules);
    return async (req, res) => {
      const context = createContext(req, res, {});
      try {
        const result = await composedModule.check(context);
        if (result.passed) {
          return handler(req, res);
        } else {
          handleSecurityFailure(context, result, res);
        }
      } catch (error) {
        console.error("Security middleware error:", error);
        if (!res.headersSent) {
          return res.status(500).json({ error: "Internal security error" });
        }
      }
    };
  };
}

// src/app-router.ts
import { composeModules as composeModules2, createContext as createContext2 } from "@lock-dev/core";
function secureAppRoute(handler) {
  return (...modules) => {
    const composedModule = composeModules2(...modules);
    return async (req) => {
      const resProxy = createResponseProxy();
      const context = createContext2(req, resProxy, {});
      try {
        const result = await composedModule.check(context);
        if (result.passed) {
          const originalResponse = await handler(req);
          const responseClone = new Response(originalResponse.body, {
            status: originalResponse.status,
            statusText: originalResponse.statusText,
            headers: new Headers({
              ...Object.fromEntries(originalResponse.headers.entries()),
              ...Object.fromEntries(resProxy.headers.entries())
            })
          });
          return responseClone;
        } else {
          return createErrorResponse(context, result);
        }
      } catch (error) {
        console.error("Middleware error:", error);
        return new Response(JSON.stringify({ error: "Internal security error" }), {
          status: 500,
          headers: {
            "Content-Type": "application/json"
          }
        });
      }
    };
  };
}

// src/server-actions.ts
import { composeModules as composeModules3, createContext as createContext3 } from "@lock-dev/core";
function secureServerAction(action) {
  return (...modules) => {
    const composedModule = composeModules3(...modules);
    return async (...args) => {
      const req = {
        headers: {},
        cookies: {},
        method: "POST",
        url: "/",
        body: {}
      };
      const formDataArg = args.find((arg) => arg instanceof FormData);
      if (formDataArg && formDataArg instanceof FormData) {
        const requestHeaders = formDataArg.get("$REQUEST_HEADERS");
        if (requestHeaders && typeof requestHeaders === "string") {
          try {
            req.headers = JSON.parse(requestHeaders);
          } catch (e) {
            console.warn("Failed to parse request headers in server action");
          }
        }
        const csrfToken = formDataArg.get("csrf-token") || formDataArg.get("csrfToken");
        if (csrfToken && typeof csrfToken === "string") {
          req.headers["x-csrf-token"] = csrfToken;
        }
      }
      const res = {
        headersSent: false,
        writableEnded: false,
        statusCode: 200,
        headers: {},
        status(code) {
          this.statusCode = code;
          return this;
        },
        setHeader(name, value) {
          this.headers[name] = value;
          return this;
        },
        json(body) {
          return body;
        }
      };
      const context = createContext3(req, res, {});
      try {
        const result = await composedModule.check(context);
        if (result.passed) {
          return action(...args);
        } else {
          const errorData = createErrorData(context, result);
          throw new Error(JSON.stringify(errorData));
        }
      } catch (error) {
        if (error instanceof Error && error.message.startsWith("{")) {
          throw error;
        }
        console.error("Security middleware error:", error);
        throw new Error(
          JSON.stringify({
            error: "Internal security error",
            statusCode: 500
          })
        );
      }
    };
  };
}

// src/edge.ts
import { composeModules as composeModules4, createContext as createContext4 } from "@lock-dev/core";
function createEdgeMiddleware(...modules) {
  const composedModule = composeModules4(...modules);
  return async function middleware(req) {
    const resProxy = createResponseProxy();
    const context = createContext4(req, resProxy, {});
    try {
      const result = await composedModule.check(context);
      if (result.passed) {
        const headers = new Headers({
          "x-middleware-next": "1"
        });
        resProxy.headers.forEach((value, key) => {
          headers.set(key, value);
        });
        return new Response(null, {
          status: 200,
          headers
        });
      } else {
        return createErrorResponse(context, result);
      }
    } catch (error) {
      console.error("Security middleware error:", error);
      return new Response(JSON.stringify({ error: "Internal security error" }), {
        status: 500,
        headers: {
          "Content-Type": "application/json"
        }
      });
    }
  };
}
export {
  createEdgeMiddleware,
  createErrorData,
  createErrorResponse,
  createResponseProxy,
  extractSecurityMetadata,
  getErrorConfig,
  handleSecurityFailure,
  registerModule,
  secureAppRoute,
  securePagesApi,
  secureServerAction
};