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Improve urlskip= filter option

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New step: `#`, to extract the hash part of a URL.

Example, URL:
https://example.com/#aHR0cHM6Ly9naXRodWIuY29tL3VCbG9ja09yaWdpbi8=

Filter:
||example.com^$urlskip=# -base64

As a result, navigate to https://github.com/uBlockOrigin/
This commit is contained in:
Raymond Hill 2024-12-24 08:59:28 -05:00
parent 27a72b8eef
commit a7aa755f18
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GPG Key ID: 25E1490B761470C2
1 changed files with 10 additions and 2 deletions
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12
src/js/urlskip.js
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@ -39,6 +39,8 @@
* `&i`: extract the name of the parameter at position `i` as the current * `&i`: extract the name of the parameter at position `i` as the current
* string. The position is 1-based. * string. The position is 1-based.
* *
* `#`: extract the hash as the current string.
*
* `/.../`: extract the first capture group of a regex as the current string. * `/.../`: extract the first capture group of a regex as the current string.
* *
* `+https`: prepend the current string with `https://`. * `+https`: prepend the current string with `https://`.
@ -77,6 +79,12 @@ export function urlSkip(url, blocked, steps, directive = {}) {
for ( const step of steps ) { for ( const step of steps ) {
const urlin = urlout; const urlin = urlout;
const c0 = step.charCodeAt(0); const c0 = step.charCodeAt(0);
// Extract from hash
if ( c0 === 0x23 && step === '#' ) { // #
const pos = urlin.indexOf('#');
urlout = pos !== -1 ? urlin.slice(pos+1) : '';
continue;
}
// Extract from URL parameter name at position i // Extract from URL parameter name at position i
if ( c0 === 0x26 ) { // & if ( c0 === 0x26 ) { // &
const i = (parseInt(step.slice(1)) || 0) - 1; const i = (parseInt(step.slice(1)) || 0) - 1;
@ -88,14 +96,14 @@ export function urlSkip(url, blocked, steps, directive = {}) {
continue; continue;
} }
// Enforce https // Enforce https
if ( c0 === 0x2B && step === '+https' ) { if ( c0 === 0x2B && step === '+https' ) { // +
const s = urlin.replace(/^https?:\/\//, ''); const s = urlin.replace(/^https?:\/\//, '');
if ( /^[\w-]:\/\//.test(s) ) { return; } if ( /^[\w-]:\/\//.test(s) ) { return; }
urlout = `https://${s}`; urlout = `https://${s}`;
continue; continue;
} }
// Decode // Decode
if ( c0 === 0x2D ) { if ( c0 === 0x2D ) { // -
// Base64 // Base64
if ( step === '-base64' ) { if ( step === '-base64' ) {
urlout = self.atob(urlin); urlout = self.atob(urlin);