Initial boiler plate project

node_modules/next/dist/server/api-utils/node/try-get-preview-data.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "tryGetPreviewData", {
+    enumerable: true,
+    get: function() {
+        return tryGetPreviewData;
+    }
+});
+const _ = require("../.");
+const _index = require("../index");
+const _cookies = require("../../web/spec-extension/cookies");
+const _headers = require("../../web/spec-extension/adapters/headers");
+function tryGetPreviewData(req, res, options, multiZoneDraftMode) {
+    var _cookies_get, _cookies_get1;
+    // if an On-Demand revalidation is being done preview mode
+    // is disabled
+    if (options && (0, _.checkIsOnDemandRevalidate)(req, options).isOnDemandRevalidate) {
+        return false;
+    }
+    // Read cached preview data if present
+    // TODO: use request metadata instead of a symbol
+    if (_index.SYMBOL_PREVIEW_DATA in req) {
+        return req[_index.SYMBOL_PREVIEW_DATA];
+    }
+    const headers = _headers.HeadersAdapter.from(req.headers);
+    const cookies = new _cookies.RequestCookies(headers);
+    const previewModeId = (_cookies_get = cookies.get(_index.COOKIE_NAME_PRERENDER_BYPASS)) == null ? void 0 : _cookies_get.value;
+    const tokenPreviewData = (_cookies_get1 = cookies.get(_index.COOKIE_NAME_PRERENDER_DATA)) == null ? void 0 : _cookies_get1.value;
+    // Case: preview mode cookie set but data cookie is not set
+    if (previewModeId && !tokenPreviewData && previewModeId === options.previewModeId) {
+        // This is "Draft Mode" which doesn't use
+        // previewData, so we return an empty object
+        // for backwards compat with "Preview Mode".
+        const data = {};
+        Object.defineProperty(req, _index.SYMBOL_PREVIEW_DATA, {
+            value: data,
+            enumerable: false
+        });
+        return data;
+    }
+    // Case: neither cookie is set.
+    if (!previewModeId && !tokenPreviewData) {
+        return false;
+    }
+    // Case: one cookie is set, but not the other.
+    if (!previewModeId || !tokenPreviewData) {
+        if (!multiZoneDraftMode) {
+            (0, _index.clearPreviewData)(res);
+        }
+        return false;
+    }
+    // Case: preview session is for an old build.
+    if (previewModeId !== options.previewModeId) {
+        if (!multiZoneDraftMode) {
+            (0, _index.clearPreviewData)(res);
+        }
+        return false;
+    }
+    let encryptedPreviewData;
+    try {
+        const jsonwebtoken = require("next/dist/compiled/jsonwebtoken");
+        encryptedPreviewData = jsonwebtoken.verify(tokenPreviewData, options.previewModeSigningKey);
+    } catch  {
+        // TODO: warn
+        (0, _index.clearPreviewData)(res);
+        return false;
+    }
+    const { decryptWithSecret } = require("../../crypto-utils");
+    const decryptedPreviewData = decryptWithSecret(Buffer.from(options.previewModeEncryptionKey), encryptedPreviewData.data);
+    try {
+        // TODO: strict runtime type checking
+        const data = JSON.parse(decryptedPreviewData);
+        // Cache lookup
+        Object.defineProperty(req, _index.SYMBOL_PREVIEW_DATA, {
+            value: data,
+            enumerable: false
+        });
+        return data;
+    } catch  {
+        return false;
+    }
+}
+
+//# sourceMappingURL=try-get-preview-data.js.map