"use strict";

// We don't have an easy way to serve update manifests from a secure URL.
Services.prefs.setBoolPref(PREF_EM_CHECK_UPDATE_SECURITY, false);

var testserver = createHttpServer();
gPort = testserver.identity.primaryPort;

const uuidGenerator = Services.uuid;

const extensionsDir = gProfD.clone();
extensionsDir.append("extensions");

const addonsDir = gTmpD.clone();
addonsDir.append("addons");
addonsDir.create(Ci.nsIFile.DIRECTORY_TYPE, 0o755);

registerCleanupFunction(() => addonsDir.remove(true));

testserver.registerDirectory("/addons/", addonsDir);

let gUpdateManifests = {};

function mapManifest(aPath, aManifestData) {
  gUpdateManifests[aPath] = aManifestData;
  testserver.registerPathHandler(aPath, serveManifest);
}

function serveManifest(request, response) {
  let manifest = gUpdateManifests[request.path];

  response.setHeader("Content-Type", manifest.contentType, false);
  response.write(manifest.data);
}

async function promiseInstallWebExtension(aData) {
  let addonFile = createTempWebExtensionFile(aData);

  let { addon } = await promiseInstallFile(addonFile);
  Services.obs.notifyObservers(addonFile, "flush-cache-entry");
  return addon;
}

var checkUpdates = async function (
  aData,
  aReason = AddonManager.UPDATE_WHEN_PERIODIC_UPDATE
) {
  function provide(obj, path, value) {
    path = path.split(".");
    let prop = path.pop();

    for (let key of path) {
      if (!(key in obj)) {
        obj[key] = {};
      }
      obj = obj[key];
    }

    if (!(prop in obj)) {
      obj[prop] = value;
    }
  }

  let id = uuidGenerator.generateUUID().number;
  provide(aData, "addon.id", id);
  provide(aData, "addon.manifest.browser_specific_settings.gecko.id", id);

  let updatePath = `/updates/${id}.json`.replace(/[{}]/g, "");
  let updateUrl = `http://localhost:${gPort}${updatePath}`;

  let addonData = { updates: [] };
  let manifestJSON = {
    addons: { [id]: addonData },
  };

  provide(
    aData,
    "addon.manifest.browser_specific_settings.gecko.update_url",
    updateUrl
  );
  let awaitInstall = promiseInstallWebExtension(aData.addon);

  for (let version of Object.keys(aData.updates)) {
    let update = aData.updates[version];
    update.version = version;

    // Create an add-on manifest based on what's in the current `update`.
    provide(update, "addon.id", id);
    provide(update, "addon.manifest.browser_specific_settings.gecko.id", id);
    let addon = update.addon;

    delete update.addon;

    provide(addon, "manifest.version", version);
    let file = createTempWebExtensionFile(addon);
    file.moveTo(addonsDir, `${id}-${version}.xpi`.replace(/[{}]/g, ""));

    let path = `/addons/${file.leafName}`;
    provide(update, "update_link", `http://localhost:${gPort}${path}`);

    addonData.updates.push(update);
  }

  mapManifest(updatePath, {
    data: JSON.stringify(manifestJSON),
    contentType: "application/json",
  });

  let addon = await awaitInstall;

  let updates = await promiseFindAddonUpdates(addon, aReason);
  updates.addon = addon;

  return updates;
};

add_task(async function setup() {
  createAppInfo("xpcshell@tests.mozilla.org", "XPCShell", "42.0", "42.0");

  await promiseStartupManager();
  registerCleanupFunction(promiseShutdownManager);
});

// Check that compatibility updates are applied.
add_task(async function checkUpdateMetadata() {
  let update = await checkUpdates({
    addon: {
      manifest: {
        version: "1.0",
        browser_specific_settings: { gecko: { strict_max_version: "45" } },
      },
    },
    updates: {
      "1.0": {
        applications: {
          gecko: { strict_min_version: "40", strict_max_version: "48" },
        },
      },
    },
  });

  ok(update.compatibilityUpdate, "have compat update");
  ok(!update.updateAvailable, "have no add-on update");

  ok(update.addon.isCompatibleWith("40", "40"), "compatible min");
  ok(update.addon.isCompatibleWith("48", "48"), "compatible max");
  ok(!update.addon.isCompatibleWith("49", "49"), "not compatible max");

  await update.addon.uninstall();
});

// Check that updates from web extensions to web extensions succeed.
add_task(async function checkUpdateToWebExt() {
  let update = await checkUpdates({
    addon: { manifest: { version: "1.0" } },
    updates: {
      1.1: {},
      1.2: {},
      1.3: { applications: { gecko: { strict_min_version: "48" } } },
    },
  });

  ok(!update.compatibilityUpdate, "have no compat update");
  ok(update.updateAvailable, "have add-on update");

  equal(update.addon.version, "1.0", "add-on version");

  await update.updateAvailable.install();

  let addon = await promiseAddonByID(update.addon.id);
  equal(addon.version, "1.2", "new add-on version");

  await addon.uninstall();
});

// Check that illegal update URLs are rejected.
add_task(async function checkIllegalUpdateURL() {
  const URLS = [
    "chrome://browser/content/",
    "data:text/json,...",
    "javascript:;",
    "/",
  ];

  for (let url of URLS) {
    let { messages } = await promiseConsoleOutput(() => {
      let addonFile = createTempWebExtensionFile({
        manifest: { browser_specific_settings: { gecko: { update_url: url } } },
      });

      return AddonManager.getInstallForFile(addonFile).then(install => {
        Services.obs.notifyObservers(addonFile, "flush-cache-entry");

        if (!install || install.state != AddonManager.STATE_DOWNLOAD_FAILED) {
          throw new Error("Unexpected state: " + (install && install.state));
        }
      });
    });

    ok(
      messages.some(msg =>
        /Access denied for URL|may not load or link to|is not a valid URL/.test(
          msg
        )
      ),
      "Got checkLoadURI error"
    );
  }
});