From 7ef9967c8a17215575be6dca47fbddcd614bafbe Mon Sep 17 00:00:00 2001
From: hackademix <giorgio@maone.net>
Date: Sat, 29 Sep 2018 01:54:22 +0200
Subject: Lenient WebLabels matching (by URL, by id, by name).

---
 bg/ExternalLicenses.js | 44 ++++++++++++++++++++++++++++++++------------
 main_background.js     |  5 +++--
 2 files changed, 35 insertions(+), 14 deletions(-)

diff --git a/bg/ExternalLicenses.js b/bg/ExternalLicenses.js
index 27d9223..058b651 100644
--- a/bg/ExternalLicenses.js
+++ b/bg/ExternalLicenses.js
@@ -26,10 +26,27 @@
 "use strict";
 
 let licensesByLabel = new Map();
+let licensesByUrl = new Map();
 {
   let {licenses} = require("../license_definitions");
-  for (let l of Object.values(licenses).filter(l => l.identifier)) {
-    licensesByLabel.set(l.identifier, l);
+  for (let [id, l] of Object.entries(licenses)) {
+    let {identifier, canonicalUrl, licenseName} = l;
+    if (identifier) {
+      licensesByLabel.set(identifier, l);
+    } else {
+      l.identifier = id;
+    }
+    if (id !== identifier) {
+      licensesByLabel.set(id, l);
+    }
+    if (licenseName) {
+      licensesByLabel.set(licenseName, l);
+    }
+    if (Array.isArray(canonicalUrl)) {
+      for (let url of canonicalUrl) {
+        licensesByUrl.set(url, l);
+      }
+    }
   }
 }
 
@@ -55,23 +72,26 @@ var ExternalLicenses = {
       return null;
     }
     scriptInfo.licenses = new Set();
-    scriptInfo.allFree = true;
     scriptInfo.toString = function() {
       let licenseIds = [...this.licenses].map(l => l.identifier).sort().join(", ");
       return licenseIds
-         ? (this.allFree ? `Free license${this.licenses.length > 1 ? "s" : ""} (${licenseIds})`
-                         : `Mixed free (${licenseIds}) and unknown licenses`)
+         ? `Free license${this.licenses.size > 1 ? "s" : ""} (${licenseIds})`
          : "Unknown license(s)";
     }
-
-    for (let {label} of scriptInfo.licenseLinks) {
-      if (licensesByLabel.has(label)) {
-        scriptInfo.licenses.add(licensesByLabel.get(label));
-      } else {
-        scriptInfo.allFree = false;
-        break;
+    let match = (map, key) => {
+      if (map.has(key)) {
+        scriptInfo.licenses.add(map.get(key));
+        return true;
       }
+      return false;
+    };
+
+    for (let {label, url} of scriptInfo.licenseLinks) {
+      match(licensesByLabel, label = label.trim()) ||
+        match(licensesByUrl, url) ||
+        match(licensesByLabel, label.replace(/^GNU-|-(?:or-later|only)$/i, ''));
     }
+    scriptInfo.free = scriptInfo.licenses.size > 0;
     return scriptInfo;
   },
 
diff --git a/main_background.js b/main_background.js
index 4cfca7a..cdc987e 100644
--- a/main_background.js
+++ b/main_background.js
@@ -859,6 +859,7 @@ var ResponseHandler = {
 		let {request} = response;
 		let {url, type, tabId, frameId, documentUrl} = request;
 
+		let fullUrl = url;
 		url = ListStore.urlItem(url);
 		let site = ListStore.siteItem(url);
 
@@ -888,11 +889,11 @@ var ResponseHandler = {
 						"whitelisted": [url, whitelistedSite ? `User whitelisted ${site}` : "Whitelisted by user"]});
 					return ResponseProcessor.ACCEPT;
 				} else {
-					let scriptInfo = await ExternalLicenses.check({url, tabId, frameId, documentUrl});
+					let scriptInfo = await ExternalLicenses.check({url: fullUrl, tabId, frameId, documentUrl});
 					if (scriptInfo) {
 						let verdict, ret;
 						let msg = scriptInfo.toString();
-						if (scriptInfo.allFree) {
+						if (scriptInfo.free) {
 							verdict = "accepted";
 							ret = ResponseProcessor.ACCEPT;
 						} else {
-- 
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