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authorWojtek Kosior <koszko@koszko.org>2021-07-06 18:25:34 +0200
committerWojtek Kosior <koszko@koszko.org>2021-07-06 18:25:34 +0200
commitb7e2870ff58ef85370781aa04e9e0126988e39fd (patch)
tree16df903db70aac294188e24b69916cd22ea779f1 /background
parentd0ae39390fba3822aed4a498aafcdfa61289448b (diff)
downloadbrowser-extension-b7e2870ff58ef85370781aa04e9e0126988e39fd.tar.gz
browser-extension-b7e2870ff58ef85370781aa04e9e0126988e39fd.zip
show some settings of the current page in the popup
Diffstat (limited to 'background')
-rw-r--r--background/main.js2
-rw-r--r--background/page_actions_server.js16
-rw-r--r--background/page_info_server.js77
-rw-r--r--background/settings_query.js98
4 files changed, 103 insertions, 90 deletions
diff --git a/background/main.js b/background/main.js
index aec25b6..45fe796 100644
--- a/background/main.js
+++ b/background/main.js
@@ -12,6 +12,7 @@
* IMPORT start_storage_server
* IMPORT start_page_actions_server
* IMPORT start_policy_injector
+ * IMPORT start_page_info_server
* IMPORT browser
* IMPORTS_END
*/
@@ -19,6 +20,7 @@
start_storage_server();
start_page_actions_server();
start_policy_injector();
+start_page_info_server();
async function init_myext(install_details)
{
diff --git a/background/page_actions_server.js b/background/page_actions_server.js
index f9773f6..2d9c333 100644
--- a/background/page_actions_server.js
+++ b/background/page_actions_server.js
@@ -21,9 +21,12 @@ var storage;
var query_best;
var handler;
-function send_scripts(url, port)
+function send_actions(url, port)
{
let [pattern, settings] = query_best(url);
+
+ port.postMessage(["settings", [pattern, settings]]);
+
if (settings === undefined)
return;
@@ -31,11 +34,11 @@ function send_scripts(url, port)
let processed_bags = new Set();
if (components !== undefined)
- send_scripts_rec([components], port, processed_bags);
+ send_scripts([components], port, processed_bags);
}
// TODO: parallelize script fetching
-async function send_scripts_rec(components, port, processed_bags)
+async function send_scripts(components, port, processed_bags)
{
for (let [prefix, name] of components) {
if (prefix === TYPE_PREFIX.BAG) {
@@ -52,14 +55,15 @@ async function send_scripts_rec(components, port, processed_bags)
}
processed_bags.add(name);
- await send_scripts_rec(bag, port, processed_bags);
+ await send_scripts(bag, port, processed_bags);
+
processed_bags.delete(name);
} else {
let script_text = await get_script_text(name);
if (script_text === undefined)
continue;
- port.postMessage({inject : [script_text]});
+ port.postMessage(["inject", [script_text]]);
}
}
}
@@ -127,7 +131,7 @@ function handle_message(port, message, handler)
port.onMessage.removeListener(handler[0]);
let url = message.url;
console.log({url});
- send_scripts(url, port);
+ send_actions(url, port);
}
function new_connection(port)
diff --git a/background/page_info_server.js b/background/page_info_server.js
new file mode 100644
index 0000000..49919fd
--- /dev/null
+++ b/background/page_info_server.js
@@ -0,0 +1,77 @@
+/**
+ * part of Hachette
+ * Serving of storage data corresponding to requested urls (server side).
+ *
+ * Copyright (C) 2021 Wojtek Kosior
+ * Redistribution terms are gathered in the `copyright' file.
+ */
+
+/*
+ * IMPORTS_START
+ * IMPORT listen_for_connection
+ * IMPORT get_storage
+ * IMPORT get_query_all
+ * IMPORT TYPE_PREFIX
+ * IMPORT CONNECTION_TYPE
+ * IMPORT url_matches
+ * IMPORTS_END
+ */
+
+var storage;
+var query_all;
+
+function handle_change(connection_data, change)
+{
+ if (change.prefix !== TYPE_PREFIX.PAGE)
+ return;
+
+ connection_data.port.postMessage(["change", change]);
+}
+
+async function handle_subscription(connection_data, message)
+{
+ const [action, url] = message;
+ if (action === "unsubscribe") {
+ connection_data.subscribed.delete(url);
+ return;
+ }
+
+ connection_data.subscribed.add(url);
+ connection_data.port.postMessage(["new_url", query_all(url)]);
+}
+
+function remove_storage_listener(cb)
+{
+ storage.remove_change_listener(cb);
+}
+
+function new_connection(port)
+{
+ console.log("new page info connection!");
+
+ const connection_data = {
+ subscribed : new Set(),
+ port
+ };
+
+ let _handle_change = change => handle_change(connection_data, change);
+
+ storage.add_change_listener(_handle_change);
+
+ port.onMessage.addListener(m => handle_subscription(connection_data, m));
+ port.onDisconnect.addListener(() => remove_storage_listener(handle_change));
+}
+
+async function start_page_info_server()
+{
+ storage = await get_storage();
+ query_all = await get_query_all();
+
+ listen_for_connection(CONNECTION_TYPE.PAGE_INFO, new_connection);
+}
+
+/*
+ * EXPORTS_START
+ * EXPORT start_page_info_server
+ * EXPORTS_END
+ */
diff --git a/background/settings_query.js b/background/settings_query.js
index ce01b80..d509b09 100644
--- a/background/settings_query.js
+++ b/background/settings_query.js
@@ -10,13 +10,12 @@
* IMPORT make_once
* IMPORT get_storage
* IMPORT TYPE_PREFIX
+ * IMPORT for_each_possible_pattern
* IMPORTS_END
*/
var storage;
-var exports = {};
-
async function init(fun)
{
storage = await get_storage();
@@ -24,94 +23,25 @@ async function init(fun)
return fun;
}
-// TODO: also support urls with specified ports
-function query(url, multiple)
+function check_pattern(pattern, multiple, matched)
{
- let proto_re = "[a-zA-Z]*:\/\/";
- let domain_re = "[^/?#]+";
- let segments_re = "/[^?#]*";
- let query_re = "\\?[^#]*";
-
- let url_regex = new RegExp(`\
-^\
-(${proto_re})\
-(${domain_re})\
-(${segments_re})?\
-(${query_re})?\
-#?.*\$\
-`);
-
- let regex_match = url_regex.exec(url);
- if (regex_match === null) {
- console.log("bad url format", url);
- return multiple ? [] : [undefined, undefined];
- }
-
- let [_, proto, domain, segments, query] = regex_match;
-
- domain = domain.split(".");
- let segments_trailing_dash =
- segments && segments[segments.length - 1] === "/";
- segments = (segments || "").split("/").filter(s => s !== "");
- segments.unshift("");
-
- let matched = [];
+ const settings = storage.get(TYPE_PREFIX.PAGE, pattern);
- for (let d_slice = 0; d_slice < domain.length; d_slice++) {
- let domain_part = domain.slice(d_slice).join(".");
- let domain_wildcards = [];
- if (d_slice === 0)
- domain_wildcards.push("");
- if (d_slice === 1)
- domain_wildcards.push("*.");
- if (d_slice > 0)
- domain_wildcards.push("**.");
- domain_wildcards.push("***.");
+ if (settings === undefined)
+ return;
- for (let domain_wildcard of domain_wildcards) {
- let domain_pattern = domain_wildcard + domain_part;
+ matched.push([pattern, settings]);
- for (let s_slice = segments.length; s_slice > 0; s_slice--) {
- let segments_part = segments.slice(0, s_slice).join("/");
- let segments_wildcards = [];
- if (s_slice === segments.length) {
- if (segments_trailing_dash)
- segments_wildcards.push("/");
- segments_wildcards.push("");
- }
- if (s_slice === segments.length - 1) {
- if (segments[s_slice] !== "*")
- segments_wildcards.push("/*");
- }
- if (s_slice < segments.length &&
- (segments[s_slice] !== "**" ||
- s_slice < segments.length - 1))
- segments_wildcards.push("/**");
- if (segments[s_slice] !== "***" ||
- s_slice < segments.length)
- segments_wildcards.push("/***");
-
- for (let segments_wildcard of segments_wildcards) {
- let segments_pattern =
- segments_part + segments_wildcard;
-
- let pattern = proto + domain_pattern + segments_pattern;
- console.log("trying", pattern);
- let settings = storage.get(TYPE_PREFIX.PAGE, pattern);
-
- if (settings === undefined)
- continue;
-
- if (!multiple)
- return [pattern, settings];
+ if (!multiple)
+ return false;
+}
- matched.push([pattern, settings]);
- }
- }
- }
- }
+function query(url, multiple)
+{
+ const matched = [];
+ for_each_possible_pattern(url, p => check_pattern(p, multiple, matched));
- return multiple ? matched : [undefined, undefined];
+ return multiple ? matched : (matched[0] || [undefined, undefined]);
}
function query_best(url)