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• [DIR] ..
• [FILE] openDebuggerMiddleware.d.ts
• [FILE] openDebuggerMiddleware.js
• [FILE] openDebuggerMiddleware.js.flow

Просмотр файла: openDebuggerMiddleware.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true,
});
exports.default = openDebuggerMiddleware;
var _getDevToolsFrontendUrl = _interopRequireDefault(
  require("../utils/getDevToolsFrontendUrl")
);
var _url = _interopRequireDefault(require("url"));
function _interopRequireDefault(e) {
  return e && e.__esModule ? e : { default: e };
}
const LEGACY_SYNTHETIC_PAGE_TITLE =
  "React Native Experimental (Improved Chrome Reloads)";
function openDebuggerMiddleware({
  serverBaseUrl,
  logger,
  browserLauncher,
  eventReporter,
  experiments,
  inspectorProxy,
}) {
  return async (req, res, next) => {
    if (
      req.method === "POST" ||
      (experiments.enableOpenDebuggerRedirect && req.method === "GET")
    ) {
      const paresedUrl = _url.default.parse(req.url, true);
      const query = paresedUrl.query;
      const targets = inspectorProxy
        .getPageDescriptions({
          requestorRelativeBaseUrl: new URL(serverBaseUrl),
        })
        .filter((app) => {
          const betterReloadingSupport =
            app.title === LEGACY_SYNTHETIC_PAGE_TITLE ||
            app.reactNative.capabilities?.nativePageReloads === true;
          if (!betterReloadingSupport) {
            logger?.warn(
              "Ignoring DevTools app debug target for '%s' with title '%s' and 'nativePageReloads' capability set to '%s'. ",
              app.appId,
              app.title,
              String(app.reactNative.capabilities?.nativePageReloads)
            );
          }
          return betterReloadingSupport;
        });
      let target;
      const launchType = req.method === "POST" ? "launch" : "redirect";
      if (
        typeof query.target === "string" ||
        typeof query.appId === "string" ||
        typeof query.device === "string"
      ) {
        logger?.info(
          (launchType === "launch" ? "Launching" : "Redirecting to") +
            " DevTools..."
        );
        target = targets.find(
          (_target) =>
            (query.target == null || _target.id === query.target) &&
            (query.appId == null ||
              (_target.appId === query.appId &&
                _target.title === LEGACY_SYNTHETIC_PAGE_TITLE)) &&
            (query.device == null ||
              _target.reactNative.logicalDeviceId === query.device)
        );
      } else if (targets.length > 0) {
        logger?.info(
          (launchType === "launch" ? "Launching" : "Redirecting to") +
            ` DevTools${
              targets.length === 1 ? "" : " for most recently connected target"
            }...`
        );
        target = targets[targets.length - 1];
      }
      if (!target) {
        res.writeHead(404);
        res.end("Unable to find debugger target");
        logger?.warn(
          "No compatible apps connected. React Native DevTools can only be used with the Hermes engine."
        );
        eventReporter?.logEvent({
          type: "launch_debugger_frontend",
          launchType,
          status: "coded_error",
          errorCode: "NO_APPS_FOUND",
        });
        return;
      }
      const useFuseboxEntryPoint =
        target.reactNative.capabilities?.prefersFuseboxFrontend ?? false;
      try {
        switch (launchType) {
          case "launch": {
            const frontendUrl = (0, _getDevToolsFrontendUrl.default)(
              experiments,
              target.webSocketDebuggerUrl,
              serverBaseUrl,
              {
                launchId: query.launchId,
                telemetryInfo: query.telemetryInfo,
                appId: target.appId,
                useFuseboxEntryPoint,
              }
            );
            if (
              useFuseboxEntryPoint &&
              experiments.enableStandaloneFuseboxShell
            ) {
              const windowKey = [
                serverBaseUrl,
                target.webSocketDebuggerUrl,
                target.appId,
              ].join("-");
              if (!browserLauncher.unstable_showFuseboxShell) {
                throw new Error(
                  "Fusebox shell is not supported by the current browser launcher"
                );
              }
              await browserLauncher.unstable_showFuseboxShell(
                frontendUrl,
                windowKey
              );
            } else {
              await browserLauncher.launchDebuggerAppWindow(frontendUrl);
            }
            res.writeHead(200);
            res.end();
            break;
          }
          case "redirect":
            res.writeHead(302, {
              Location: (0, _getDevToolsFrontendUrl.default)(
                experiments,
                target.webSocketDebuggerUrl,
                serverBaseUrl,
                {
                  relative: true,
                  launchId: query.launchId,
                  telemetryInfo: query.telemetryInfo,
                  appId: target.appId,
                  useFuseboxEntryPoint,
                }
              ),
            });
            res.end();
            break;
          default:
        }
        eventReporter?.logEvent({
          type: "launch_debugger_frontend",
          launchType,
          status: "success",
          appId: target.appId,
          deviceId: target.reactNative.logicalDeviceId,
          pageId: target.id,
          deviceName: target.deviceName,
          targetDescription: target.description,
          prefersFuseboxFrontend: useFuseboxEntryPoint,
        });
        return;
      } catch (e) {
        logger?.error(
          "Error launching DevTools: " + e.message ?? "Unknown error"
        );
        res.writeHead(500);
        res.end();
        eventReporter?.logEvent({
          type: "launch_debugger_frontend",
          launchType,
          status: "error",
          error: e,
          prefersFuseboxFrontend: useFuseboxEntryPoint,
        });
        return;
      }
    }
    next();
  };
}

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