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-rw-r--r--background/page_actions_server.mjs145
1 files changed, 0 insertions, 145 deletions
diff --git a/background/page_actions_server.mjs b/background/page_actions_server.mjs
deleted file mode 100644
index 5fb4924..0000000
--- a/background/page_actions_server.mjs
+++ /dev/null
@@ -1,145 +0,0 @@
-/**
-* Myext serving of page actions to content scripts
-*
-* Copyright (C) 2021 Wojtek Kosior
-*
-* Dual-licensed under:
-* - 0BSD license
-* - GPLv3 or (at your option) any later version
-*/
-
-import get_storage from './storage.mjs';
-import {TYPE_PREFIX} from '/common/stored_types.mjs';
-import CONNECTION_TYPE from '/common/connection_types.mjs';
-import browser from '/common/browser.mjs';
-import listen_for_connection from './message_server.mjs';
-import url_item from './url_item.mjs';
-import sha256 from './sha256.mjs';
-
-"use strict";
-
-var storage;
-var handler;
-
-function send_scripts(url, port)
-{
- let settings = storage.get(TYPE_PREFIX.PAGE, url_item(url));
- if (settings === undefined)
- return;
-
- let components = settings.components;
- let processed_bundles = new Set();
-
- send_scripts_rec(components, port, processed_bundles);
-}
-
-// TODO: parallelize script fetching
-async function send_scripts_rec(components, port, processed_bundles)
-{
- for (let [prefix, name] of components) {
- if (prefix === TYPE_PREFIX.BUNDLE) {
- if (processed_bundles.has(name)) {
- console.log(`preventing recursive inclusion of bundle ${name}`);
- continue;
- }
-
- var bundle = storage.get(TYPE_PREFIX.BUNDLE, name);
-
- if (bundle === undefined) {
- console.log(`no bundle in storage for key ${name}`);
- continue;
- }
-
- processed_bundles.add(name);
- await send_scripts_rec(bundle, port, processed_bundles);
- processed_bundles.delete(name);
- } else {
- let script_text = await get_script_text(name);
- if (script_text === undefined)
- continue;
-
- port.postMessage({inject : [script_text]});
- }
- }
-}
-
-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);
- }
-}
-
-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);
- }
-}
-
-function handle_message(port, message, handler)
-{
- port.onMessage.removeListener(handler[0]);
- let url = message.url;
- console.log({url});
- send_scripts(url, port);
-}
-
-function new_connection(port)
-{
- console.log("new page actions connection!");
- let handler = [];
- handler.push(m => handle_message(port, m, handler));
- port.onMessage.addListener(handler[0]);
-}
-
-export default async function start()
-{
- storage = await get_storage();
-
- listen_for_connection(CONNECTION_TYPE.PAGE_ACTIONS, new_connection);
-}