Make HEAD to Antizapret

extensions/chromium/runet-censorship-bypass/src/extension-common/13-http-lib.js

@@ -78,6 +78,31 @@
 
     },
 
+    head(url, cb = mandatory()) {
+
+      const start = Date.now();
+      fetch(url, {cache: 'no-store', method: 'HEAD'}).then(
+        (res) => {
+
+          const status = res.status;
+          if ( !( status >= 200 && status < 300 || status === 304 ) ) {
+            return cb(
+              errorsLib.clarify(
+                res,
+                'Получен ответ с неудачным HTTP-кодом ' + status + '.'
+              )
+            );
+          }
+
+          console.log('HEADed with success:', url, Date.now() - start);
+          cb();
+
+        },
+        errorsLib.clarifyThen(checkCon, cb)
+      );
+
+    },
+
   };
 
 }

extensions/chromium/runet-censorship-bypass/src/extension-common/37-sync-pac-script-with-pac-provider-api.tmpl.js

@@ -97,7 +97,7 @@
 
   };
 
-  const setPacScriptFromProviderAsync = function setPacScriptFromProviderAsync(
+  const setPacScriptFromProviderAsync = async function setPacScriptFromProviderAsync(
     provider, lastModifiedStr = mandatory(), cb = throwIfError
   ) {
 
@@ -106,6 +106,29 @@
       'Getting PAC script from provider...', pacUrl,
       cb
     );
+    // TODO: dirty hack (labels should be UI related only)
+    if (provider.label === 'Антицензорити') {
+      const azUrl = window.apis.antiCensorRu.pacProviders['Антизапрет'].pacUrls[0];
+      console.log('HEADing antizapret...');
+      let headError = null;
+      const numberOfTries = 2;
+      let i = 0;
+      while (i++ < numberOfTries) {
+        await new Promise((resolve) =>
+          httpLib.head(azUrl, (err) => {
+            headError = err;
+            if (!headError) {
+              i = numberOfTries;
+            }
+            resolve();
+          })
+        );
+      }
+      if (headError) {
+        clarifyThen(\`\${azUrl} недоступен!\`, cb)(headError);
+        return;
+      }
+    }
 
     httpLib.ifModifiedSince(pacUrl, lastModifiedStr, (err, newLastModifiedStr) => {