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Compute URL of sublists as relative to URL of parent list

Related issue:
- https://github.com/NanoAdblocker/NanoCore/issues/239

The erroneous behavior was to compute the URL of a sublist as
relative to the URL of the root list, which may differ from the
URL of a parent list.
This commit is contained in:
Raymond Hill 2019-01-29 11:52:16 -05:00
parent 3195f554f7
commit 923c5ce5bd
No known key found for this signature in database
GPG Key ID: 25E1490B761470C2

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@ -179,7 +179,19 @@ api.fetchFilterList = function(mainlistURL, onLoad, onError) {
const pendingSublistURLs = new Set([ mainlistURL ]);
const loadedSublistURLs = new Set();
const toParsedURL = api.fetchFilterList.toParsedURL;
const parsedURL = toParsedURL(mainlistURL);
// https://github.com/NanoAdblocker/NanoCore/issues/239
// Anything under URL's root directory is allowed to be fetched. The
// URL of a sublist will always be relative to the URL of the parent
// list (instead of the URL of the root list).
const rootDirectoryURL = toParsedURL(mainlistURL);
if ( rootDirectoryURL !== undefined ) {
const pos = rootDirectoryURL.pathname.lastIndexOf('/');
if ( pos !== -1 ) {
rootDirectoryURL.pathname =
rootDirectoryURL.pathname.slice(0, pos + 1);
}
}
let errored = false;
@ -193,13 +205,16 @@ api.fetchFilterList = function(mainlistURL, onLoad, onError) {
if ( match === null ) { break; }
if ( toParsedURL(match[1]) !== undefined ) { continue; }
if ( match[1].indexOf('..') !== -1 ) { continue; }
const subURL = parsedURL.origin +
parsedURL.pathname.replace(/[^/]+$/, match[1]);
if ( pendingSublistURLs.has(subURL) ) { continue; }
if ( loadedSublistURLs.has(subURL) ) { continue; }
pendingSublistURLs.add(subURL);
api.fetchText(subURL, onLocalLoadSuccess, onLocalLoadError);
out.push(content.slice(lastIndex, match.index).trim(), subURL);
const subURL = toParsedURL(details.url);
subURL.pathname = subURL.pathname.replace(/[^/]+$/, match[1]);
if ( subURL.href.startsWith(rootDirectoryURL.href) === false ) {
continue;
}
if ( pendingSublistURLs.has(subURL.href) ) { continue; }
if ( loadedSublistURLs.has(subURL.href) ) { continue; }
pendingSublistURLs.add(subURL.href);
api.fetchText(subURL.href, onLocalLoadSuccess, onLocalLoadError);
out.push(content.slice(lastIndex, match.index).trim(), subURL.href);
lastIndex = reInclude.lastIndex;
}
out.push(lastIndex === 0 ? content : content.slice(lastIndex).trim());
@ -231,7 +246,10 @@ api.fetchFilterList = function(mainlistURL, onLoad, onError) {
}
// Find and process #!include directives
if ( parsedURL !== undefined && parsedURL.pathname.length > 0 ) {
if (
rootDirectoryURL !== undefined &&
rootDirectoryURL.pathname.length > 0
) {
const processed = processIncludeDirectives(details);
if ( processed.length > 1 ) {
content.splice(slot, 1, ...processed);