From 89db6823fae5099816732c3cd2ba39700c1c4607 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>
Date: Wed, 12 May 2021 13:36:09 +0200
Subject: remove remnants of LibreJS

---
 background/script_injector.mjs | 122 -----------------------------------------
 1 file changed, 122 deletions(-)
 delete mode 100644 background/script_injector.mjs

(limited to 'background/script_injector.mjs')

diff --git a/background/script_injector.mjs b/background/script_injector.mjs
deleted file mode 100644
index 3298a43..0000000
--- a/background/script_injector.mjs
+++ /dev/null
@@ -1,122 +0,0 @@
-/**
-* Myext script injector
-* 
-* Copyright (C) 2021 Wojtek Kosior
-*
-* Dual-licensed under:
-*   - 0BSD license
-*   - GPLv3 or (at your option) any later version
-*/
-
-import {TYPE_PREFIX} from '/common/stored_types.mjs';
-import sha256 from './sha256.mjs';
-import {url_item} from './ResponseProcessor.mjs';
-import get_storage from './storage.mjs';
-
-"use strict";
-
-var storage;
-
-function ajax_callback()
-{
-    if (this.readyState == 4)
-	this.resolve_callback(this);
-}
-
-function initiate_ajax_request(resolve, method, url)
-{
-    var xhttp = new XMLHttpRequest();
-    xhttp.resolve_callback = resolve;
-    xhttp.onreadystatechange = ajax_callback;
-    xhttp.open(method, url, true);
-    xhttp.send();
-}
-
-function make_ajax_request(method, url)
-{
-    return new Promise((resolve, reject) =>
-	initiate_ajax_request(resolve, method, url));
-}
-
-async function fetch_remote_script(script_data)
-{
-    try {
-	let xhttp = await make_ajax_request("GET", script_data.url);
-	if (xhttp.status === 200) {
-	    let computed_hash = sha256(xhttp.responseText);
-	    if (computed_hash !== script_data.hash) {
-		console.log(`Bad hash for ${script_data.url}\n    got ${computed_hash} instead of ${script_data.hash}`);
-		return;
-	    }
-	    return xhttp.responseText;
-	} else {
-	    console.log("script not fetched: " + script_data.url);
-	    return;
-	}
-    } catch (e) {
-	console.log(e);
-    }
-}
-
-async function get_script_text(script_name)
-{
-    try {
-	let script_data = storage.get(TYPE_PREFIX.SCRIPT, script_name);
-	if (script_data === undefined) {
-	    console.log(`missing data for ${script_name}`);
-	    return;
-	}
-	let script_text = script_data.text;
-	if (!script_text)
-	    script_text = await fetch_remote_script(script_data);
-	return script_text;
-    } catch (e) {
-	console.log(e);
-    }
-}
-
-// TODO: parallelize script fetching
-// TODO: guard against infinite recursion
-
-async function inject_scripts_rec(components, doc)
-{
-    for (let [prefix, name] of components) {
-	if (prefix === TYPE_PREFIX.BUNDLE) {
-	    var bundle = storage.get(TYPE_PREFIX.BUNDLE, name);
-
-	    if (bundle === undefined) {
-		console.log(`no bundle in storage for key ${elem_key}`);
-		continue;
-	    }
-	    await inject_scripts_rec(bundle, doc);
-	} else {
-	    let script_text = await get_script_text(name,);
-	    if (script_text === undefined)
-		continue;
-
-	    let script = doc.createElement("script");
-	    script.textContent = script_text;
-	    doc.body.appendChild(script);
-	}
-    }
-}
-
-async function inject_scripts(url, doc)
-{
-    storage = await get_storage();
-
-    url = url_item(url);
-
-    let components = storage.get(TYPE_PREFIX.PAGE, url);
-
-    if (components === undefined) {
-	console.log(`got nothing for ${url}`);
-	return
-    } else {
-	console.log(`got ${components.length} component(s) for ${url}`);
-    }
-
-    await inject_scripts_rec(components, doc);
-}
-
-export default inject_scripts;
-- 
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