1 files changed, 47 insertions, 0 deletions
diff --git a/src/bg/ReportingCSP.js b/src/bg/ReportingCSP.js
new file mode 100644
index 0000000..03926c2
--- /dev/null
+++ b/src/bg/ReportingCSP.js
@@ -0,0 +1,47 @@
+"use strict";
+  
+function ReportingCSP(reportURI, reportGroup) {
+  const REPORT_TO = {
+    name: "Report-To",
+    value: JSON.stringify({ "url": reportURI,
+             "group": reportGroup,
+             "max-age": 10886400 }),
+  };
+  return Object.assign(
+    new CapsCSP(new NetCSP(
+      `report-uri ${reportURI};`,
+      `;report-to ${reportGroup};`
+    )), 
+    {
+      reportURI,
+      reportGroup,
+      patchHeaders(responseHeaders, capabilities) {
+        let header = null;
+        let hasReportTo = false;
+        for (let h of responseHeaders) {
+          if (this.isMine(h)) {
+            header = h;
+            h.value = this.inject(h.value, "");
+          } else if (h.name === REPORT_TO.name && h.value === REPORT_TO.value) {
+            hasReportTo = true;
+          }
+        }
+
+        let blocker = capabilities && this.buildFromCapabilities(capabilities);
+        if (blocker) {
+          if (!hasReportTo) {
+            responseHeaders.push(REPORT_TO);
+          }
+          if (header) {
+            header.value = this.inject(header.value, blocker);
+          } else {
+            header = this.asHeader(blocker);
+            responseHeaders.push(header);
+          }
+        }
+        
+        return header;
+      }
+    }
+  );
+}