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Web view with web3.site support (#4313)

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* Web-domain based routing

* Support base32-encoded urls

* Proper support for non-domain based routing

* Handling long domain names

* Switching to web3.site

* Encoding for *.web3.site urls

* Add DappUrlInput component

* Update Web views with store

* Update spec description

* Update spec description

* edited url does not allow in-place store edits

* Fixing dapps access on 127.0.0.1:8180

* Use /web/<hash> urls for iframe

* Redirecting to parity.web3.site

* Disabling the redirection
This commit is contained in:
Jaco Greeff
2017-02-04 09:52:14 +01:00
committed by Gav Wood
parent c9d38cac6e
commit b4c24d5ab3
31 changed files with 1071 additions and 280 deletions
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79
dapps/src/web.rs
View File

@@ -20,6 +20,7 @@ use std::sync::Arc;
use fetch::{self, Fetch};
use parity_reactor::Remote;
use base32;
use hyper::{self, server, net, Next, Encoder, Decoder};
use hyper::status::StatusCode;
@@ -27,7 +28,7 @@ use apps;
use endpoint::{Endpoint, Handler, EndpointPath};
use handlers::{
ContentFetcherHandler, ContentHandler, ContentValidator, ValidatorResponse,
StreamingHandler, Redirection, extract_url,
StreamingHandler, extract_url,
};
use url::Url;
use WebProxyTokens;
@@ -86,9 +87,10 @@ impl ContentValidator for WebInstaller {
);
if is_html {
handler.set_initial_content(&format!(
r#"<script src="/{}/inject.js"></script><script>history.replaceState({{}}, "", "/?{}{}")</script>"#,
r#"<script src="/{}/inject.js"></script><script>history.replaceState({{}}, "", "/?{}{}/{}")</script>"#,
apps::UTILS_PATH,
apps::URL_REFERER,
apps::WEB_PATH,
&self.referer,
));
}
@@ -99,7 +101,6 @@ impl ContentValidator for WebInstaller {
enum State<F: Fetch> {
Initial,
Error(ContentHandler),
Redirecting(Redirection),
Fetching(ContentFetcherHandler<WebInstaller, F>),
}
@@ -114,25 +115,26 @@ struct WebHandler<F: Fetch> {
}
impl<F: Fetch> WebHandler<F> {
fn extract_target_url(&self, url: Option<Url>) -> Result<(String, String), State<F>> {
let (path, query) = match url {
Some(url) => (url.path, url.query),
None => {
return Err(State::Error(ContentHandler::error(
StatusCode::BadRequest, "Invalid URL", "Couldn't parse URL", None, self.embeddable_on.clone()
)));
}
};
fn extract_target_url(&self, url: Option<Url>) -> Result<String, State<F>> {
let token_and_url = self.path.app_params.get(0)
.map(|encoded| encoded.replace('.', ""))
.and_then(|encoded| base32::decode(base32::Alphabet::Crockford, &encoded.to_uppercase()))
.and_then(|data| String::from_utf8(data).ok())
.ok_or_else(|| State::Error(ContentHandler::error(
StatusCode::BadRequest,
"Invalid parameter",
"Couldn't parse given parameter:",
self.path.app_params.get(0).map(String::as_str),
self.embeddable_on.clone()
)))?;
// Support domain based routing.
let idx = match path.get(0).map(|m| m.as_ref()) {
Some(apps::WEB_PATH) => 1,
_ => 0,
};
let mut token_it = token_and_url.split('+');
let token = token_it.next();
let target_url = token_it.next();
// Check if token supplied in URL is correct.
match path.get(idx) {
Some(ref token) if self.web_proxy_tokens.is_web_proxy_token_valid(token) => {},
match token {
Some(token) if self.web_proxy_tokens.is_web_proxy_token_valid(token) => {},
_ => {
return Err(State::Error(ContentHandler::error(
StatusCode::BadRequest, "Invalid Access Token", "Invalid or old web proxy access token supplied.", Some("Try refreshing the page."), self.embeddable_on.clone()
@@ -141,9 +143,8 @@ impl<F: Fetch> WebHandler<F> {
}
// Validate protocol
let protocol = match path.get(idx + 1).map(|a| a.as_str()) {
Some("http") => "http",
Some("https") => "https",
let mut target_url = match target_url {
Some(url) if url.starts_with("http://") || url.starts_with("https://") => url.to_owned(),
_ => {
return Err(State::Error(ContentHandler::error(
StatusCode::BadRequest, "Invalid Protocol", "Invalid protocol used.", None, self.embeddable_on.clone()
@@ -151,28 +152,35 @@ impl<F: Fetch> WebHandler<F> {
}
};
// Redirect if address to main page does not end with /
if let None = path.get(idx + 3) {
return Err(State::Redirecting(
Redirection::new(&format!("/{}/", path.join("/")))
));
if !target_url.ends_with("/") {
target_url = format!("{}/", target_url);
}
let query = match query {
Some(query) => format!("?{}", query),
// TODO [ToDr] Should just use `path.app_params`
let (path, query) = match (&url, self.path.using_dapps_domains) {
(&Some(ref url), true) => (&url.path[..], &url.query),
(&Some(ref url), false) => (&url.path[2..], &url.query),
_ => {
return Err(State::Error(ContentHandler::error(
StatusCode::BadRequest, "Invalid URL", "Couldn't parse URL", None, self.embeddable_on.clone()
)));
}
};
let query = match *query {
Some(ref query) => format!("?{}", query),
None => "".into(),
};
Ok((format!("{}://{}{}", protocol, path[idx + 2..].join("/"), query), path[0..].join("/")))
Ok(format!("{}{}{}", target_url, path.join("/"), query))
}
}
impl<F: Fetch> server::Handler<net::HttpStream> for WebHandler<F> {
fn on_request(&mut self, request: server::Request<net::HttpStream>) -> Next {
let url = extract_url(&request);
// First extract the URL (reject invalid URLs)
let (target_url, referer) = match self.extract_target_url(url) {
let target_url = match self.extract_target_url(url) {
Ok(url) => url,
Err(error) => {
self.state = error;
@@ -186,7 +194,9 @@ impl<F: Fetch> server::Handler<net::HttpStream> for WebHandler<F> {
self.control.clone(),
WebInstaller {
embeddable_on: self.embeddable_on.clone(),
referer: referer,
referer: self.path.app_params.get(0)
.expect("`target_url` is valid; app_params is not empty;qed")
.to_owned(),
},
self.embeddable_on.clone(),
self.remote.clone(),
@@ -202,7 +212,6 @@ impl<F: Fetch> server::Handler<net::HttpStream> for WebHandler<F> {
match self.state {
State::Initial => Next::end(),
State::Error(ref mut handler) => handler.on_request_readable(decoder),
State::Redirecting(ref mut handler) => handler.on_request_readable(decoder),
State::Fetching(ref mut handler) => handler.on_request_readable(decoder),
}
}
@@ -211,7 +220,6 @@ impl<F: Fetch> server::Handler<net::HttpStream> for WebHandler<F> {
match self.state {
State::Initial => Next::end(),
State::Error(ref mut handler) => handler.on_response(res),
State::Redirecting(ref mut handler) => handler.on_response(res),
State::Fetching(ref mut handler) => handler.on_response(res),
}
}
@@ -220,7 +228,6 @@ impl<F: Fetch> server::Handler<net::HttpStream> for WebHandler<F> {
match self.state {
State::Initial => Next::end(),
State::Error(ref mut handler) => handler.on_response_writable(encoder),
State::Redirecting(ref mut handler) => handler.on_response_writable(encoder),
State::Fetching(ref mut handler) => handler.on_response_writable(encoder),
}
}