first commit

grafana/dashboards/requests/node_modules/http-basic/lib/cache-utils.js

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+"use strict";
+exports.__esModule = true;
+var cache_control_utils_1 = require("./cache-control-utils");
+function isMatch(requestHeaders, cachedResponse) {
+    var vary = cachedResponse.headers['vary'];
+    if (vary && cachedResponse.requestHeaders) {
+        vary = '' + vary;
+        return vary.split(',').map(function (header) { return header.trim().toLowerCase(); }).every(function (header) {
+            return requestHeaders[header] === cachedResponse.requestHeaders[header];
+        });
+    }
+    else {
+        return true;
+    }
+}
+exports.isMatch = isMatch;
+;
+function isExpired(cachedResponse) {
+    var policy = cache_control_utils_1.cachePolicy(cachedResponse);
+    if (policy) {
+        var time = (Date.now() - cachedResponse.requestTimestamp) / 1000;
+        if (policy.maxage !== null && policy.maxage > time) {
+            return false;
+        }
+    }
+    if (cachedResponse.statusCode === 301 || cachedResponse.statusCode === 308)
+        return false;
+    return true;
+}
+exports.isExpired = isExpired;
+;
+function canCache(res) {
+    if (res.headers['etag'])
+        return true;
+    if (res.headers['last-modified'])
+        return true;
+    if (cache_control_utils_1.isCacheable(res))
+        return true;
+    if (res.statusCode === 301 || res.statusCode === 308)
+        return true;
+    return false;
+}
+exports.canCache = canCache;
+;