openethereum/dapps/src/apps/fs.rs
Tomasz Drwięga 88c9cea04d Dapps interface RPC (#3311)
* Dapps Interface RPC

* Adding JS apis

* Support for signer interface in proxypac and embeds

* Fixing tests

* fixing tests again
2016-11-09 19:41:47 +01:00

110 lines
3.0 KiB
Rust

// Copyright 2015, 2016 Ethcore (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::io;
use std::io::Read;
use std::fs;
use std::path::PathBuf;
use page::{LocalPageEndpoint, PageCache};
use endpoint::{Endpoints, EndpointInfo};
use apps::manifest::{MANIFEST_FILENAME, deserialize_manifest};
struct LocalDapp {
id: String,
path: PathBuf,
info: EndpointInfo,
}
fn local_dapps(dapps_path: String) -> Vec<LocalDapp> {
let files = fs::read_dir(dapps_path.as_str());
if let Err(e) = files {
warn!(target: "dapps", "Unable to load local dapps from: {}. Reason: {:?}", dapps_path, e);
return vec![];
}
let files = files.expect("Check is done earlier");
files.map(|dir| {
let entry = try!(dir);
let file_type = try!(entry.file_type());
// skip files
if file_type.is_file() {
return Err(io::Error::new(io::ErrorKind::NotFound, "Not a file"));
}
// take directory name and path
entry.file_name().into_string()
.map(|name| (name, entry.path()))
.map_err(|e| {
info!(target: "dapps", "Unable to load dapp: {:?}. Reason: {:?}", entry.path(), e);
io::Error::new(io::ErrorKind::NotFound, "Invalid name")
})
})
.filter_map(|m| {
if let Err(ref e) = m {
debug!(target: "dapps", "Ignoring local dapp: {:?}", e);
}
m.ok()
})
.map(|(name, path)| {
// try to get manifest file
let info = read_manifest(&name, path.clone());
LocalDapp {
id: name,
path: path,
info: info,
}
})
.collect()
}
fn read_manifest(name: &str, mut path: PathBuf) -> EndpointInfo {
path.push(MANIFEST_FILENAME);
fs::File::open(path.clone())
.map_err(|e| format!("{:?}", e))
.and_then(|mut f| {
// Reat file
let mut s = String::new();
try!(f.read_to_string(&mut s).map_err(|e| format!("{:?}", e)));
// Try to deserialize manifest
deserialize_manifest(s)
})
.map(Into::into)
.unwrap_or_else(|e| {
warn!(target: "dapps", "Cannot read manifest file at: {:?}. Error: {:?}", path, e);
EndpointInfo {
name: name.into(),
description: name.into(),
version: "0.0.0".into(),
author: "?".into(),
icon_url: "icon.png".into(),
}
})
}
pub fn local_endpoints(dapps_path: String, signer_address: Option<(String, u16)>) -> Endpoints {
let mut pages = Endpoints::new();
for dapp in local_dapps(dapps_path) {
pages.insert(
dapp.id,
Box::new(LocalPageEndpoint::new(dapp.path, dapp.info, PageCache::Disabled, signer_address.clone()))
);
}
pages
}