Almost adds dns-over-https by google

extensions/chromium/minimalistic-pac-setter/extension/1-sync-pac-script-with-pac-provider.js

@@ -1,7 +1,7 @@
 'use strict';
 
 /*
-  Task 1. Gets IPs for proxies of antizapret/anticenz with dns-lg.com.
+  Task 1. Gets IPs for proxies of antizapret/anticenz via dns over https.
           These IPs are used in block-informer to inform user when proxy is ON.
   Task 2. Downloads PAC proxy script from antizapret/anticenz/my Google Drive and sets it in Chromium settings.
   Task 3. Schedules tasks 1 & 2 for every 4 hours.
@@ -11,7 +11,7 @@
   In background scripts use window.antiCensorRu public variables.
   In pages window.antiCensorRu are not accessible,
     use chrome.runtime.getBackgroundPage(..),
-    avoid old extension.getBackgroundPage.
+    extension.getBackgroundPage is deprecated
 */
 
 window.antiCensorRu = {
@@ -153,7 +153,7 @@ window.antiCensorRu = {
       }
     );
 
-    return nextUpdateMoment === now; // ifAlarmTriggered. May be changed.
+    return nextUpdateMoment === now; // ifAlarmTriggered. May be changed in the future.
   },
 
   installPac(key, cb) {
@@ -287,7 +287,22 @@ function httpGet(url, cb) {
   );
 }
 
-function getIpsAndCnames(host, cb) {
+function _getIpsAndCnames(host, cb) {
+  /*
+    Answer format:
+      "answer":
+      [
+        {
+          "name": "proxy.antizapret.prostovpn.org.",
+          "type": "A",
+          "class": "IN",
+          "ttl": 409,
+          "rdlength": 4,
+          "rdata": "195.123.209.38"
+        }
+      ...
+    CNAME example: ghs.google.com
+  **/
   httpGet(
     'http://www.dns-lg.com/google1/'+ host +'/a',
     (err, res) => {
@@ -296,8 +311,13 @@ function getIpsAndCnames(host, cb) {
           res = JSON.parse(res);
           if (err)
             err.clarification.message += ' Сервер: '+ res.message;
-          else
+          else {
             res = res.answer;
+            for (const r of res) {
+              r.data = r.rdata;
+              delete r.rdata;
+            }
+          }
         } catch(e) {
           err = err || {clarification:{message:''}};
           err.clarification.message += ' Сервер: '+ res;
@@ -308,6 +328,62 @@ function getIpsAndCnames(host, cb) {
   );
 }
 
+function getIpsAndCnames(host, cb) {
+
+  /*
+    Answer format:
+      "Answer":
+      [
+        {
+          "name": "apple.com.",   // Always matches name in the Question section
+          "type": 1,              // A - Standard DNS RR type
+          "TTL": 3599,            // Record's time-to-live in seconds
+          "data": "17.178.96.59"  // Data for A - IP address as text
+        },
+      ...
+  **/
+
+  const type2str = {
+    // https://en.wikipedia.org/wiki/List_of_DNS_record_types
+    1:  'A',
+    2:  'NS',
+    28: 'AAAA',
+    5:  'CNAME'
+  };
+
+  httpGet(
+    'https://dns.google.com/resolve?type=A&name=' + host
+    (err, res) => {
+      if (res) {
+        try {
+          res = JSON.parse(res);
+          if (err || res.Status) {
+            const msg = ['Answer', 'Comment', 'Status']
+              .filter( (prop) => res[ prop ] )
+              .map( (prop) => prop + ': ' + JSON.stringify( res[ prop ] )  )
+              .join(', \n');
+            err.clarification.message += ' Сервер: '+ msg;
+            err.data = err.data || res;
+          }
+          else {
+            res = res.Answer;
+            for (const r of res) {
+              r.type = type2str[ r.type ];
+            }
+          }
+        }
+        catch(e) {
+          err = err || {clarification:{message:''}};
+          err.clarification.message += ' Сервер: '+ res;
+          err.clarification.message.trim();
+          err.data = err.data || res;
+        }
+      }
+      return cb( err, res );
+    }
+  );
+}
+
 function updatePacProxyIps(provider, cb) {
   var cb = asyncLogGroup('Getting IP for '+ provider.proxyHosts.join(', ') +'...', cb);
   var failure = {
@@ -321,7 +397,7 @@ function updatePacProxyIps(provider, cb) {
       (err, ans) => {
         if (!err) {
           provider.proxyIps = provider.proxyIps || {};
-          ans.filter( ans => ans.type === 'A' ).map( ans => provider.proxyIps[ ans.rdata ] = proxyHost );
+          ans.filter( ans => ans.type === 'A' ).map( ans => provider.proxyIps[ ans.data ] = proxyHost );
         } else
           failure.errors[proxyHost] = err;
 

extensions/chromium/minimalistic-pac-setter/extension/pages/is-ip-blocked/index.js

@@ -12,13 +12,13 @@ chrome.runtime.getBackgroundPage( backgroundPage => {
           ${err.clarification && err.clarification.message || err.message}`
         )
       : records.length === 1 && records[0].type === 'A'
-        ? window.location.replace( backgroundPage.reestrUrl + records[0].rdata )
+        ? window.location.replace( backgroundPage.reestrUrl + records[0].data )
         : document.write(
               '<title>Выбор IP</title>'
             + '<h4>У домена несколько IP / синонимов:</h4>'
             + records
-              .sort( (a,b) => a.rdata.localeCompare(b.rdata) )
-              .map( ans => ans.rdata.link( ans.type === 'A' ? backgroundPage.reestrUrl + ans.rdata : window.location.pathname +'?'+ ans.rdata ) )
+              .sort( (a,b) => a.data.localeCompare(b.data) )
+              .map( ans => ans.data.link( ans.type === 'A' ? backgroundPage.reestrUrl + ans.data : window.location.pathname +'?'+ ans.data ) )
               .join('<br/>')
           )
   )