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mod content;
mod meta;
mod navigation;
use content::Content;
use meta::{Meta, Mime, Status};
use navigation::Navigation;
use gtk::{
gio::{
Cancellable, SimpleAction, SimpleActionGroup, SocketClient, SocketProtocol,
TlsCertificateFlags,
},
glib::{gformat, GString, Priority, Regex, RegexCompileFlags, RegexMatchFlags, Uri, UriFlags},
prelude::{
ActionExt, ActionMapExt, BoxExt, IOStreamExt, InputStreamExtManual, OutputStreamExtManual,
SocketClientExt, StaticVariantType, ToVariant, WidgetExt,
},
Box, Orientation,
};
use std::{cell::RefCell, path::Path, sync::Arc};
pub struct Page {
// GTK
widget: Box,
// Actions
action_page_open: Arc<SimpleAction>,
action_tab_page_navigation_reload: Arc<SimpleAction>,
action_update: Arc<SimpleAction>,
// Components
navigation: Arc<Navigation>,
content: Arc<Content>,
// Extras
meta: Arc<RefCell<Meta>>,
}
impl Page {
// Construct
pub fn new(
name: GString,
navigation_request_text: Option<GString>,
action_tab_page_navigation_base: Arc<SimpleAction>,
action_tab_page_navigation_history_back: Arc<SimpleAction>,
action_tab_page_navigation_history_forward: Arc<SimpleAction>,
action_tab_page_navigation_reload: Arc<SimpleAction>,
action_update: Arc<SimpleAction>,
) -> Page {
// Init actions
let action_page_open = Arc::new(SimpleAction::new(
"open",
Some(&String::static_variant_type()),
));
// Init action group
let action_group = SimpleActionGroup::new();
action_group.add_action(action_page_open.as_ref());
// Init components
let content = Arc::new(Content::new(action_page_open.clone()));
let navigation = Arc::new(Navigation::new(
navigation_request_text,
action_tab_page_navigation_base.clone(),
action_tab_page_navigation_history_back.clone(),
action_tab_page_navigation_history_forward.clone(),
action_tab_page_navigation_reload.clone(),
action_update.clone(),
));
// Init widget
let widget = Box::builder()
.orientation(Orientation::Vertical)
.name(name)
.build();
widget.append(navigation.widget());
widget.append(content.widget());
widget.insert_action_group("page", Some(&action_group));
// Init async mutable Meta object
let meta = Arc::new(RefCell::new(Meta::new()));
// Init events
action_page_open.connect_activate({
let navigation = navigation.clone();
let action_tab_page_navigation_reload = action_tab_page_navigation_reload.clone();
move |_, request| {
// Convert to GString
let request = GString::from(
request
.expect("Parameter required for `page.open` action")
.get::<String>()
.expect("Parameter does not match `String`"),
);
// Update
navigation.set_request_text(&request);
// Reload page
action_tab_page_navigation_reload.activate(None);
}
});
// Return activated structure
Self {
// GTK
widget,
// Actions
action_page_open,
action_tab_page_navigation_reload,
action_update,
// Components
content,
navigation,
// Extras
meta,
}
}
// Actions
pub fn navigation_request_grab_focus(&self) {
self.navigation.request_grab_focus();
}
pub fn navigation_base(&self) {
if let Some(url) = self.navigation.base_url() {
// Update with history record
self.action_page_open.activate(Some(&url.to_variant()));
}
}
pub fn navigation_history_back(&self) {
if let Some(request) = self.navigation.history_back(true) {
// Update
self.navigation.set_request_text(&request);
// Reload page
self.action_tab_page_navigation_reload.activate(None);
}
}
pub fn navigation_history_forward(&self) {
if let Some(request) = self.navigation.history_forward(true) {
// Update
self.navigation.set_request_text(&request);
// Reload page
self.action_tab_page_navigation_reload.activate(None);
}
}
pub fn navigation_reload(&self) {
// Init globals
let request_text = self.navigation.request_text();
// Init shared objects for async access
let navigation = self.navigation.clone();
let content = self.content.clone();
let meta = self.meta.clone();
let action_update = self.action_update.clone();
// Update
meta.borrow_mut().mime = None;
meta.borrow_mut().status = Some(Status::Reload);
meta.borrow_mut().title = Some(gformat!("Loading.."));
meta.borrow_mut().description = None;
action_update.activate(None);
/*let _uri = */
match Uri::parse(&request_text, UriFlags::NONE) {
Ok(uri) => {
// Route request by scheme
match uri.scheme().as_str() {
"file" => {
todo!()
}
"gemini" => {
// Get host
let host = match uri.host() {
Some(host) => host,
None => panic!(),
};
// Update
meta.borrow_mut().status = Some(Status::Prepare);
meta.borrow_mut().description = Some(gformat!("Connect {host}.."));
action_update.activate(None);
// Create new connection
let cancellable = Cancellable::new();
let client = SocketClient::new();
client.set_timeout(10);
client.set_tls(true);
client.set_tls_validation_flags(TlsCertificateFlags::INSECURE);
client.set_protocol(SocketProtocol::Tcp);
client.connect_to_uri_async(
&uri.to_str(),
1965,
Some(&cancellable.clone()),
move |result| match result {
Ok(connection) => {
// Update
meta.borrow_mut().status = Some(Status::Connect);
meta.borrow_mut().description = Some(gformat!("Connected to {host}.."));
action_update.activate(None);
// Send request
connection.output_stream().write_all_async(
gformat!("{}\r\n", &uri.to_str()),
Priority::DEFAULT,
Some(&cancellable.clone()),
move |result| match result {
Ok(_) => {
// Update
meta.borrow_mut().status = Some(Status::Request);
meta.borrow_mut().description = Some(gformat!("Request data from {host}.."));
action_update.activate(None);
// Read response
connection.input_stream().read_all_async(
vec![0; 0xfffff], // 1Mb @TODO
Priority::DEFAULT,
Some(&cancellable.clone()),
move |result| match result {
Ok(response) => {
match GString::from_utf8_until_nul(
response.0,
) {
Ok(data) => {
// Format response
meta.borrow_mut().status = Some(Status::Response);
meta.borrow_mut().description = Some(host);
meta.borrow_mut().title = Some(uri.path());
action_update.activate(None);
// Try create short base for title
let path = uri.path();
let path = Path::new(&path);
if let Some(base) = path.file_name() {
if let Some(base_str) = base.to_str() {
meta.borrow_mut().title = Some(GString::from(base_str));
}
}
// Parse response @TODO read bytes
let parts = Regex::split_simple(
r"^(\d+)?\s([\w]+\/[\w]+)?(.*)?",
&data,
RegexCompileFlags::DEFAULT,
RegexMatchFlags::DEFAULT,
);
// https://geminiprotocol.net/docs/protocol-specification.gmi#status-codes
match parts.get(1) {
Some(code) => match code.as_str() {
"20" => {
match parts.get(2) {
Some(mime) => match mime.as_str() {
"text/gemini" => {
// Update meta
meta.borrow_mut().mime = Some(Mime::TextGemini);
// Update data
match parts.get(4) {
Some(source) => {
meta.borrow_mut().status = Some(Status::Success);
// This content type may return parsed title
let result = content.reset(content::Mime::TextGemini, &uri, &source);
meta.borrow_mut().title = result.title.clone();
// Add new history record
let request = uri.to_str();
match navigation.history_current() {
Some(current) => {
if current != request {
navigation.history_add(request);
}
}
None => navigation.history_add(request),
}
// Update window components
action_update.activate(None);
},
None => todo!(),
}
},
"text/plain" => {
meta.borrow_mut().status = Some(Status::Success);
meta.borrow_mut().mime = Some(Mime::TextPlain);
action_update.activate(None);
todo!()
},
_ => {
meta.borrow_mut().status = Some(Status::Failure);
meta.borrow_mut().title = Some(gformat!("Oops"));
meta.borrow_mut().description = Some(gformat!("Content {mime} not supported"));
action_update.activate(None);
},
}
None => todo!(),
};
},
// Redirect (@TODO implement limits to auto-redirect)
"31" => {
// Update meta
meta.borrow_mut().status = Some(Status::Redirect);
meta.borrow_mut().mime = Some(Mime::TextGemini);
meta.borrow_mut().title = Some(gformat!("Redirect"));
action_update.activate(None);
// Select widget
match parts.get(3) {
Some(source) => {
let _ = content.reset(
content::Mime::TextGemini,
&uri,
// @TODO use template file
&gformat!("# Redirect\n\nAuto-follow disabled, click on link below to continue\n\n=> {source}")
);
},
None => todo!(),
}
},
// @TODO
_ => {
// Update
meta.borrow_mut().status = Some(Status::Failure);
meta.borrow_mut().title = Some(gformat!("Oops"));
meta.borrow_mut().description = Some(gformat!("Status {code} not supported"));
action_update.activate(None);
},
}
None => todo!(),
};
}
Err(e) => {
meta.borrow_mut().status = Some(Status::Failure);
meta.borrow_mut().title = Some(gformat!("Oops"));
meta.borrow_mut().description = Some(gformat!("Failed to read buffer data: {e}"));
action_update.activate(None);
}
}
// Close connection
if let Err(e) = connection.close(Some(&cancellable)) {
panic!("Error closing connection: {:?}", e);
}
}
Err(e) => {
// Update
meta.borrow_mut().status = Some(Status::Failure);
meta.borrow_mut().title = Some(gformat!("Oops"));
meta.borrow_mut().description = Some(gformat!("Failed to read response: {:?}", e));
action_update.activate(None);
// Close connection
if let Err(e) = connection.close(Some(&cancellable)) {
panic!("Error closing response connection: {:?}", e);
}
}
},
);
}
Err(e) => {
// Update
meta.borrow_mut().status = Some(Status::Failure);
meta.borrow_mut().title = Some(gformat!("Oops"));
meta.borrow_mut().description = Some(gformat!("Failed to read request: {:?}", e));
action_update.activate(None);
// Close connection
if let Err(e) = connection.close(Some(&cancellable)) {
panic!("Error closing request connection: {:?}", e);
}
}
},
);
}
Err(e) => {
// Update
meta.borrow_mut().status = Some(Status::Failure);
meta.borrow_mut().title = Some(gformat!("Oops"));
meta.borrow_mut().description = Some(gformat!("Failed to connect: {:?}", e));
action_update.activate(None);
}
},
);
}
/* @TODO
"nex" => {}
*/
scheme => {
// Update
meta.borrow_mut().status = Some(Status::Failure);
meta.borrow_mut().title = Some(gformat!("Oops"));
meta.borrow_mut().description =
Some(gformat!("Protocol {scheme} not supported"));
action_update.activate(None);
}
}
}
Err(_) => {
// Try interpret URI manually
if Regex::match_simple(
r"^[^\/\s]+\.[\w]{2,}",
request_text.clone(),
RegexCompileFlags::DEFAULT,
RegexMatchFlags::DEFAULT,
) {
// Seems request contain some host, try append default scheme
let request_text = gformat!("gemini://{request_text}");
// Make sure new request conversible to valid URI
match Uri::parse(&request_text, UriFlags::NONE) {
Ok(_) => {
// Update
self.navigation.set_request_text(&request_text);
// Reload page
self.action_tab_page_navigation_reload.activate(None);
}
Err(_) => {
// @TODO any action here?
}
}
} else {
// Plain text given, make search request to default provider
let request_text = gformat!(
"gemini://tlgs.one/search?{}",
Uri::escape_string(&request_text, None, false)
);
// Update
self.navigation.set_request_text(&request_text);
// Reload page
self.action_tab_page_navigation_reload.activate(None);
}
}
};
}
pub fn update(&self) {
// Interpret status to progress fraction
let progress_fraction = match self.meta.borrow().status {
Some(Status::Prepare | Status::Reload) => Some(0.0),
Some(Status::Connect) => Some(0.25),
Some(Status::Request) => Some(0.50),
Some(Status::Response) => Some(0.75),
Some(Status::Failure | Status::Redirect | Status::Success) => Some(1.0),
_ => None,
};
// Update components
self.navigation.update(progress_fraction);
// @TODO self.content.update();
}
// Getters
pub fn title(&self) -> Option<GString> {
self.meta.borrow().title.clone()
}
pub fn description(&self) -> Option<GString> {
self.meta.borrow().description.clone()
}
pub fn widget(&self) -> &Box {
&self.widget
}
}