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|
/**
* Hachette display panel logic
*
* Copyright (C) 2021 Wojtek Kosior
* Redistribution terms are gathered in the `copyright' file.
*/
/*
* IMPORTS_START
* IMPORT browser
* IMPORT is_chrome
* IMPORT is_mozilla
*** Using remote storage here seems inefficient, we only resort to that
*** temporarily, before all storage access gets reworked.
* IMPORT get_remote_storage
* IMPORT get_import_frame
* IMPORT init_default_policy_dialog
* IMPORT query_all
* IMPORT CONNECTION_TYPE
* IMPORT is_privileged_url
* IMPORT TYPE_PREFIX
* IMPORT nice_name
* IMPORT open_in_settings
* IMPORT each_url_pattern
* IMPORT by_id
* IMPORT clone_template
* IMPORTS_END
*/
let storage;
let tab_url;
/* Force popup <html>'s reflow on stupid Firefox. */
if (is_mozilla) {
const reflow_forcer =
() => document.documentElement.style.width = "-moz-fit-content";
for (const radio of document.querySelectorAll('[name="current_view"]'))
radio.addEventListener("change", reflow_forcer);
}
const show_queried_view_radio = by_id("show_queried_view_radio");
const tab_query = {currentWindow: true, active: true};
async function get_current_tab()
{
/* Fix for fact that Chrome does not use promises here */
const promise = is_chrome ?
new Promise((resolve, reject) =>
browser.tabs.query(tab_query, tab => resolve(tab))) :
browser.tabs.query(tab_query);
try {
return (await promise)[0];
} catch(e) {
console.log(e);
}
}
const page_url_heading = by_id("page_url_heading");
const privileged_notice = by_id("privileged_notice");
const page_state = by_id("page_state");
/* Helper functions to convert string into a list of one-letter <span>'s. */
function char_to_span(char, doc)
{
const span = document.createElement("span");
span.textContent = char;
return span;
}
function to_spans(string, doc=document)
{
return string.split("").map(c => char_to_span(c, doc));
}
async function show_page_activity_info()
{
const tab = await get_current_tab();
if (tab === undefined) {
page_url_heading.textContent = "unknown page";
return;
}
tab_url = /^([^?#]*)/.exec(tab.url)[1];
to_spans(tab_url).forEach(s => page_url_heading.append(s));
if (is_privileged_url(tab_url)) {
privileged_notice.classList.remove("hide");
return;
}
populate_possible_patterns_list(tab_url);
page_state.classList.remove("hide");
try_to_connect(tab.id);
}
const possible_patterns_list = by_id("possible_patterns");
const known_patterns = new Map();
function add_pattern_to_list(pattern)
{
const template = clone_template("pattern_entry");
template.name.textContent = pattern;
const settings_opener = () => open_in_settings(TYPE_PREFIX.PAGE, pattern);
template.button.addEventListener("click", settings_opener);
known_patterns.set(pattern, template);
possible_patterns_list.append(template.entry);
return template;
}
function style_possible_pattern_entry(pattern, exists_in_settings)
{
const [text, class_action] = exists_in_settings ?
["Edit", "add"] : ["Add", "remove"];
const entry_object = known_patterns.get(pattern);
if (entry_object) {
entry_object.button.textContent = `${text} setting`;
entry_object.entry.classList[class_action]("matched_pattern");
}
}
function handle_page_change(change)
{
style_possible_pattern_entry(change.item, change.new_val !== undefined);
}
function populate_possible_patterns_list(url)
{
for (const pattern of each_url_pattern(url))
add_pattern_to_list(pattern);
for (const [pattern, settings] of query_all(storage, url))
style_possible_pattern_entry(pattern, true);
storage.add_change_listener(handle_page_change, [TYPE_PREFIX.PAGE]);
}
const connected_chbx = by_id("connected_chbx");
const query_pattern_but = by_id("query_pattern");
var content_script_port;
function try_to_connect(tab_id)
{
/* This won't connect to iframes. We'll add support for them later */
const connect_info = {name: CONNECTION_TYPE.ACTIVITY_INFO, frameId: 0};
content_script_port = browser.tabs.connect(tab_id, connect_info);
const disconnect_cb = () => handle_disconnect(tab_id, start_querying_repos);
content_script_port.onDisconnect.addListener(disconnect_cb);
content_script_port.onMessage.addListener(handle_activity_report);
query_pattern_but.addEventListener("click", start_querying_repos);
if (is_mozilla)
setTimeout(() => monitor_connecting(tab_id), 1000);
}
function start_querying_repos()
{
query_pattern_but.removeEventListener("click", start_querying_repos);
const repo_urls = storage.get_all_names(TYPE_PREFIX.REPO);
if (content_script_port)
content_script_port.postMessage([TYPE_PREFIX.URL, tab_url, repo_urls]);
}
const loading_point = by_id("loading_point");
const reload_notice = by_id("reload_notice");
function handle_disconnect(tab_id, button_cb)
{
query_pattern_but.removeEventListener("click", button_cb);
content_script_port = null;
if (is_chrome && !browser.runtime.lastError)
return;
/* return if error was not during connection initialization */
if (connected_chbx.checked)
return;
loading_point.classList.toggle("camouflage");
reload_notice.classList.remove("hide");
setTimeout(() => try_to_connect(tab_id), 1000);
}
function monitor_connecting(tab_id)
{
if (connected_chbx.checked)
return;
if (content_script_port)
content_script_port.disconnect();
else
return;
loading_point.classList.toggle("camouflage");
reload_notice.classList.remove("hide");
try_to_connect(tab_id);
}
const pattern_span = by_id("pattern");
const view_pattern_but = by_id("view_pattern");
const blocked_span = by_id("blocked");
const payload_span = by_id("payload");
const payload_buttons_div = by_id("payload_buttons");
const view_payload_but = by_id("view_payload");
const view_injected_but = by_id("view_injected");
const container_for_injected = by_id("container_for_injected");
const content_type_cell = by_id("content_type");
const queried_items = new Map();
let max_injected_script_id = 0;
function handle_activity_report(message)
{
connected_chbx.checked = true;
const [type, data] = message;
if (type === "settings") {
let [pattern, settings] = data;
blocked_span.textContent = settings.allow ? "no" : "yes";
if (pattern) {
pattern_span.textContent = pattern;
const settings_opener =
() => open_in_settings(TYPE_PREFIX.PAGE, pattern);
view_pattern_but.classList.remove("hide");
view_pattern_but.addEventListener("click", settings_opener);
} else {
pattern_span.textContent = "none";
blocked_span.textContent = blocked_span.textContent + " (default)";
}
const components = settings.components;
if (components) {
payload_span.textContent = nice_name(...components);
payload_buttons_div.classList.remove("hide");
const settings_opener = () => open_in_settings(...components);
view_payload_but.addEventListener("click", settings_opener);
} else {
payload_span.textContent = "none";
}
}
if (type === "script") {
const template = clone_template("injected_script");
const chbx_id = `injected_script_${max_injected_script_id++}`;
template.chbx.id = chbx_id;
template.lbl.setAttribute("for", chbx_id);
template.script_contents.textContent = data;
container_for_injected.appendChild(template.div);
}
if (type === "is_html") {
if (!data)
content_type_cell.classList.remove("hide");
}
if (type === "repo_query_action") {
const key = data.prefix + data.item;
const results = queried_items.get(key) || {};
Object.assign(results, data.results);
queried_items.set(key, results);
const action = data.prefix === TYPE_PREFIX.URL ?
show_query_result : record_fetched_install_dep;
for (const [repo_url, result] of Object.entries(data.results))
action(data.prefix, data.item, repo_url, result);
}
}
const container_for_repo_responses = by_id("container_for_repo_responses");
const results_lists = new Map();
function create_results_list(url)
{
const cloned_template = clone_template("multi_repos_query_result");
cloned_template.url_span.textContent = url;
container_for_repo_responses.appendChild(cloned_template.div);
cloned_template.by_repo = new Map();
results_lists.set(url, cloned_template);
return cloned_template;
}
function create_result_item(list_object, repo_url, result)
{
const cloned_template = clone_template("single_repo_query_result");
cloned_template.repo_url.textContent = repo_url;
cloned_template.appended = null;
list_object.ul.appendChild(cloned_template.li);
list_object.by_repo.set(repo_url, cloned_template);
return cloned_template;
}
function set_appended(result_item, element)
{
if (result_item.appended)
result_item.appended.remove();
result_item.appended = element;
result_item.li.appendChild(element);
}
function show_message(result_item, text)
{
const div = document.createElement("div");
div.textContent = text;
set_appended(result_item, div);
}
function showcb(text)
{
return item => show_message(item, text);
}
function unroll_chbx_first_checked(entry_object)
{
if (!entry_object.chbx.checked)
return;
entry_object.chbx.removeEventListener("change", entry_object.unroll_cb);
delete entry_object.unroll_cb;
entry_object.unroll.innerHTML = "preview not implemented...<br />(consider contributing)";
}
let import_frame;
let install_target = null;
function install_abort(error_state)
{
import_frame.show_error(`Error: ${error_state}`);
install_target = null;
}
/*
* Translate objects from the format in which they are sent by Hydrilla to the
* format in which they are stored in settings.
*/
function translate_script(script_object, repo_url)
{
return {
[TYPE_PREFIX.SCRIPT + script_object.name]: {
hash: script_object.sha256,
url: `${repo_url}/content/${script_object.location}`
}
};
}
function translate_bag(bag_object)
{
return {
[TYPE_PREFIX.BAG + bag_object.name]: bag_object.components
};
}
const format_translators = {
[TYPE_PREFIX.BAG]: translate_bag,
[TYPE_PREFIX.SCRIPT]: translate_script
};
function install_check_ready()
{
if (install_target.to_fetch.size > 0)
return;
const page_key = [TYPE_PREFIX.PAGE + install_target.pattern];
const to_install = [{[page_key]: {components: install_target.payload}}];
for (const key of install_target.fetched) {
const old_object =
queried_items.get(key)[install_target.repo_url].response;
const new_object =
format_translators[key[0]](old_object, install_target.repo_url);
to_install.push(new_object);
}
import_frame.show_selection(to_install);
}
const possible_errors = ["connection_error", "parse_error"];
function fetch_install_deps(components)
{
const needed = [...components];
const processed = new Set();
while (needed.length > 0) {
const [prefix, item] = needed.pop();
const key = prefix + item;
processed.add(key);
const results = queried_items.get(key);
let relevant_result = null;
if (results)
relevant_result = results[install_target.repo_url];
if (!relevant_result) {
content_script_port.postMessage([prefix, item,
[install_target.repo_url]]);
install_target.to_fetch.add(key);
continue;
}
if (possible_errors.includes(relevant_result.state)) {
install_abort(relevant_result.state);
return false;
}
install_target.fetched.add(key);
if (prefix !== TYPE_PREFIX.BAG)
continue;
for (const dependency of relevant_result.response.components) {
if (processed.has(dependency.join('')))
continue;
needed.push(dependency);
}
}
}
function record_fetched_install_dep(prefix, item, repo_url, result)
{
const key = prefix + item;
if (!install_target || repo_url !== install_target.repo_url ||
!install_target.to_fetch.has(key))
return;
if (possible_errors.includes(result.state)) {
install_abort(result.state);
return;
}
if (result.state !== "completed")
return;
install_target.to_fetch.delete(key);
install_target.fetched.add(key);
if (prefix === TYPE_PREFIX.BAG &&
fetch_install_deps(result.response.components) === false)
return;
install_check_ready();
}
function install_clicked(entry_object)
{
import_frame.show_loading();
install_target = {
repo_url: entry_object.repo_url,
pattern: entry_object.match_object.pattern,
payload: entry_object.match_object.payload,
fetched: new Set(),
to_fetch: new Set()
};
fetch_install_deps([install_target.payload]);
install_check_ready();
}
var max_query_result_id = 0;
function show_query_successful_result(result_item, repo_url, result)
{
if (result.length === 0) {
show_message(result_item, "No results :(");
return;
}
const cloned_ul_template = clone_template("result_patterns_list");
set_appended(result_item, cloned_ul_template.ul);
for (const match of result) {
const entry_object = clone_template("query_match_li");
entry_object.pattern.textContent = match.pattern;
cloned_ul_template.ul.appendChild(entry_object.li);
if (!match.payload) {
entry_object.payload.textContent = "(none)";
for (const key of ["chbx", "triangle", "unroll"])
entry_object[key].remove();
continue;
}
entry_object.payload.textContent = nice_name(...match.payload);
const install_cb = () => install_clicked(entry_object);
entry_object.btn.addEventListener("click", install_cb);
const chbx_id = `query_result_${max_query_result_id++}`;
entry_object.chbx.id = chbx_id;
entry_object.lbl.setAttribute("for", chbx_id);
entry_object.unroll_cb = () => unroll_chbx_first_checked(entry_object);
entry_object.chbx.addEventListener("change", entry_object.unroll_cb);
entry_object.component_object = match.payload;
entry_object.match_object = match;
entry_object.repo_url = repo_url;
}
}
function show_query_result(url_prefix, url, repo_url, result)
{
const results_list_object = results_lists.get(url) ||
create_results_list(url);
const result_item = results_list_object.by_repo.get(repo_url) ||
create_result_item(results_list_object, repo_url, result);
const completed_cb =
item => show_query_successful_result(item, repo_url, result.response);
const possible_actions = {
completed: completed_cb,
started: showcb("loading..."),
connection_error: showcb("Error when querying repository."),
parse_error: showcb("Bad data format received.")
};
possible_actions[result.state](result_item, repo_url);
}
by_id("settings_but")
.addEventListener("click", (e) => browser.runtime.openOptionsPage());
async function main()
{
init_default_policy_dialog();
storage = await get_remote_storage();
import_frame = await get_import_frame();
import_frame.onclose = () => show_queried_view_radio.checked = true;
show_page_activity_info();
}
main();
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