openethereum/js/src/views/Dapps/dappsStore.js
2016-11-25 13:14:30 +01:00

270 lines
7.4 KiB
JavaScript

// 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/>.
import BigNumber from 'bignumber.js';
import { action, computed, observable, transaction } from 'mobx';
import store from 'store';
import Contracts from '../../contracts';
import { hashToImageUrl } from '../../redux/util';
import builtinApps from './builtin.json';
const LS_KEY_DISPLAY = 'displayApps';
const LS_KEY_EXTERNAL_ACCEPT = 'acceptExternal';
export default class DappsStore {
@observable apps = [];
@observable displayApps = {};
@observable modalOpen = false;
@observable externalOverlayVisible = true;
constructor (api) {
this._api = api;
this.loadExternalOverlay();
this.readDisplayApps();
Promise
.all([
this._fetchBuiltinApps(),
this._fetchLocalApps(),
this._fetchRegistryApps()
])
.then(this.writeDisplayApps);
}
@computed get sortedBuiltin () {
return this.apps.filter((app) => app.type === 'builtin');
}
@computed get sortedLocal () {
return this.apps.filter((app) => app.type === 'local');
}
@computed get sortedNetwork () {
return this.apps.filter((app) => app.type === 'network');
}
@computed get visibleApps () {
return this.apps.filter((app) => this.displayApps[app.id] && this.displayApps[app.id].visible);
}
@computed get visibleBuiltin () {
return this.visibleApps.filter((app) => app.type === 'builtin');
}
@computed get visibleLocal () {
return this.visibleApps.filter((app) => app.type === 'local');
}
@computed get visibleNetwork () {
return this.visibleApps.filter((app) => app.type === 'network');
}
@action openModal = () => {
this.modalOpen = true;
}
@action closeModal = () => {
this.modalOpen = false;
}
@action closeExternalOverlay = () => {
this.externalOverlayVisible = false;
store.set(LS_KEY_EXTERNAL_ACCEPT, true);
}
@action loadExternalOverlay () {
this.externalOverlayVisible = !(store.get(LS_KEY_EXTERNAL_ACCEPT) || false);
}
@action hideApp = (id) => {
this.displayApps = Object.assign({}, this.displayApps, { [id]: { visible: false } });
this.writeDisplayApps();
}
@action showApp = (id) => {
this.displayApps = Object.assign({}, this.displayApps, { [id]: { visible: true } });
this.writeDisplayApps();
}
@action readDisplayApps = () => {
this.displayApps = store.get(LS_KEY_DISPLAY) || {};
}
@action writeDisplayApps = () => {
store.set(LS_KEY_DISPLAY, this.displayApps);
}
@action addApps = (apps) => {
transaction(() => {
this.apps = this.apps
.concat(apps || [])
.sort((a, b) => a.name.localeCompare(b.name));
const visibility = {};
apps.forEach((app) => {
if (!this.displayApps[app.id]) {
visibility[app.id] = { visible: app.visible };
}
});
this.displayApps = Object.assign({}, this.displayApps, visibility);
});
}
_getHost (api) {
const host = process.env.DAPPS_URL || (process.env.NODE_ENV === 'production'
? this._api.dappsUrl
: '');
if (host === '/') {
return '';
}
return host;
}
_fetchBuiltinApps () {
const { dappReg } = Contracts.get();
return Promise
.all(builtinApps.map((app) => dappReg.getImage(app.id)))
.then((imageIds) => {
this.addApps(
builtinApps.map((app, index) => {
app.type = 'builtin';
app.image = hashToImageUrl(imageIds[index]);
return app;
})
);
})
.catch((error) => {
console.warn('DappsStore:fetchBuiltinApps', error);
});
}
_fetchLocalApps () {
return fetch(`${this._getHost()}/api/apps`)
.then((response) => {
return response.ok
? response.json()
: [];
})
.then((apps) => {
return apps
.map((app) => {
app.type = 'local';
app.visible = true;
return app;
})
.filter((app) => app.id && !['ui'].includes(app.id));
})
.then(this.addApps)
.catch((error) => {
console.warn('DappsStore:fetchLocal', error);
});
}
_fetchRegistryApps () {
const { dappReg } = Contracts.get();
return dappReg
.count()
.then((_count) => {
const count = _count.toNumber();
const promises = [];
for (let index = 0; index < count; index++) {
promises.push(dappReg.at(index));
}
return Promise.all(promises);
})
.then((appsInfo) => {
const appIds = appsInfo
.map(([appId, owner]) => this._api.util.bytesToHex(appId))
.filter((appId) => {
return (new BigNumber(appId)).gt(0) && !builtinApps.find((app) => app.id === appId);
});
return Promise
.all([
Promise.all(appIds.map((appId) => dappReg.getImage(appId))),
Promise.all(appIds.map((appId) => dappReg.getContent(appId))),
Promise.all(appIds.map((appId) => dappReg.getManifest(appId)))
])
.then(([imageIds, contentIds, manifestIds]) => {
return appIds.map((appId, index) => {
const app = {
id: appId,
image: hashToImageUrl(imageIds[index]),
contentHash: this._api.util.bytesToHex(contentIds[index]).substr(2),
manifestHash: this._api.util.bytesToHex(manifestIds[index]).substr(2),
type: 'network',
visible: true
};
return app;
});
});
})
.then((apps) => {
return Promise
.all(apps.map((app) => this._fetchManifest(app.manifestHash)))
.then((manifests) => {
return apps.map((app, index) => {
const manifest = manifests[index];
if (manifest) {
app.manifestHash = null;
Object.keys(manifest)
.filter((key) => ['author', 'description', 'name', 'version'].includes(key))
.forEach((key) => {
app[key] = manifest[key];
});
}
return app;
});
})
.then((apps) => {
return apps.filter((app) => {
return !app.manifestHash && app.id;
});
});
})
.then(this.addApps)
.catch((error) => {
console.warn('DappsStore:fetchRegistry', error);
});
}
_fetchManifest (manifestHash) {
return fetch(`${this._getHost()}/api/content/${manifestHash}/`, { redirect: 'follow', mode: 'cors' })
.then((response) => {
return response.ok
? response.json()
: null;
})
.catch((error) => {
console.warn('DappsStore:fetchManifest', error);
return null;
});
}
}