1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
|
/*
This file is part of TALER
(C) 2017 INRIA
TALER 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, or (at your option) any later version.
TALER 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
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import { classifyTalerUri, CoreApiResponse, TalerUriType } from "@gnu-taler/taler-util";
import { getReadRequestPermissions } from "../permissions.js";
import { CrossBrowserPermissionsApi, MessageFromBackend, Permissions, PlatformAPI } from "./api.js";
const api: PlatformAPI = {
isFirefox,
findTalerUriInActiveTab,
getPermissionsApi,
getWalletVersion,
listenToWalletBackground,
notifyWhenAppIsReady,
openWalletPage,
openWalletPageFromPopup,
openWalletURIFromPopup,
redirectTabToWalletPage,
registerAllIncomingConnections,
registerOnInstalled,
listenToAllChannels,
registerReloadOnNewVersion,
registerTalerHeaderListener,
sendMessageToAllChannels,
sendMessageToWalletBackground,
useServiceWorkerAsBackgroundProcess
}
export default api;
function isFirefox(): boolean {
return false;
}
export function contains(p: Permissions): Promise<boolean> {
return new Promise((res, rej) => {
chrome.permissions.contains(p, (resp) => {
const le = chrome.runtime.lastError?.message
if (le) {
rej(le)
}
res(resp)
})
})
}
export async function request(p: Permissions): Promise<boolean> {
return new Promise((res, rej) => {
chrome.permissions.request(p, (resp) => {
const le = chrome.runtime.lastError?.message
if (le) {
rej(le)
}
res(resp)
})
})
}
export async function remove(p: Permissions): Promise<boolean> {
return new Promise((res, rej) => {
chrome.permissions.remove(p, (resp) => {
const le = chrome.runtime.lastError?.message
if (le) {
rej(le)
}
res(resp)
})
})
}
function addPermissionsListener(callback: (p: Permissions, lastError?: string) => void): void {
console.log("addPermissionListener is not supported for Firefox");
chrome.permissions.onAdded.addListener((perm: Permissions) => {
const lastError = chrome.runtime.lastError?.message;
callback(perm, lastError)
})
}
function getPermissionsApi(): CrossBrowserPermissionsApi {
return {
addPermissionsListener, contains, request, remove
}
}
/**
*
* @param callback function to be called
*/
function notifyWhenAppIsReady(callback: () => void) {
if (chrome.runtime && chrome.runtime.getManifest().manifest_version === 3) {
callback()
} else {
window.addEventListener("load", callback);
}
}
function openWalletURIFromPopup(talerUri: string) {
const uriType = classifyTalerUri(talerUri);
let url: string | undefined = undefined;
switch (uriType) {
case TalerUriType.TalerWithdraw:
url = chrome.runtime.getURL(`static/wallet.html#/cta/withdraw?talerWithdrawUri=${talerUri}`);
break;
case TalerUriType.TalerPay:
url = chrome.runtime.getURL(`static/wallet.html#/cta/pay?talerPayUri=${talerUri}`);
break;
case TalerUriType.TalerTip:
url = chrome.runtime.getURL(`static/wallet.html#/cta/tip?talerTipUri=${talerUri}`);
break;
case TalerUriType.TalerRefund:
url = chrome.runtime.getURL(`static/wallet.html#/cta/refund?talerRefundUri=${talerUri}`);
break;
default:
console.warn(
"Response with HTTP 402 has Taler header, but header value is not a taler:// URI.",
);
return;
}
chrome.tabs.create(
{ active: true, url, },
() => { window.close(); },
);
}
function openWalletPage(page: string) {
const url = chrome.runtime.getURL(`/static/wallet.html#${page}`)
chrome.tabs.create(
{ active: true, url, },
);
}
function openWalletPageFromPopup(page: string) {
const url = chrome.runtime.getURL(`/static/wallet.html#${page}`)
chrome.tabs.create(
{ active: true, url, },
() => { window.close(); },
);
}
async function sendMessageToWalletBackground(operation: string, payload: any): Promise<any> {
return new Promise<any>((resolve, reject) => {
chrome.runtime.sendMessage({ operation, payload, id: "(none)" }, (resp) => {
if (chrome.runtime.lastError) {
reject(chrome.runtime.lastError.message)
}
resolve(resp)
// return true to keep the channel open
return true;
})
})
}
let notificationPort: chrome.runtime.Port | undefined;
function listenToWalletBackground(listener: (m: any) => void) {
if (notificationPort === undefined) {
notificationPort = chrome.runtime.connect({ name: "notifications" })
}
notificationPort.onMessage.addListener(listener)
function removeListener() {
if (notificationPort !== undefined) {
notificationPort.onMessage.removeListener(listener)
}
}
return removeListener
}
const allPorts: chrome.runtime.Port[] = [];
function sendMessageToAllChannels(message: MessageFromBackend) {
for (const notif of allPorts) {
// const message: MessageFromBackend = { type: msg.type };
try {
notif.postMessage(message);
} catch (e) {
console.error(e);
}
}
}
function registerAllIncomingConnections() {
chrome.runtime.onConnect.addListener((port) => {
allPorts.push(port);
port.onDisconnect.addListener((discoPort) => {
const idx = allPorts.indexOf(discoPort);
if (idx >= 0) {
allPorts.splice(idx, 1);
}
});
});
}
function listenToAllChannels(cb: (message: any, sender: any, callback: (r: CoreApiResponse) => void) => void) {
chrome.runtime.onMessage.addListener((m, s, c) => {
cb(m, s, c)
// keep the connection open
return true;
});
}
function registerReloadOnNewVersion() {
// Explicitly unload the extension page as soon as an update is available,
// so the update gets installed as soon as possible.
chrome.runtime.onUpdateAvailable.addListener((details) => {
console.log("update available:", details);
chrome.runtime.reload();
});
}
function redirectTabToWalletPage(
tabId: number,
page: string,
) {
const url = chrome.runtime.getURL(`/static/wallet.html#${page}`);
console.log("redirecting tabId: ", tabId, " to: ", url);
chrome.tabs.update(tabId, { url });
}
interface WalletVersion {
version_name?: string | undefined;
version: string;
}
function getWalletVersion(): WalletVersion {
const manifestData = chrome.runtime.getManifest();
return manifestData;
}
function registerTalerHeaderListener(callback: (tabId: number, url: string) => void): void {
console.log("setting up header listener");
function headerListener(
details: chrome.webRequest.WebResponseHeadersDetails,
) {
if (chrome.runtime.lastError) {
console.error(JSON.stringify(chrome.runtime.lastError));
return;
}
if (
details.statusCode === 402 ||
details.statusCode === 202 ||
details.statusCode === 200
) {
const values = (details.responseHeaders || [])
.filter(h => h.name.toLowerCase() === 'taler')
.map(h => h.value)
.filter((value): value is string => !!value)
if (values.length > 0) {
callback(details.tabId, values[0])
}
}
return;
}
getPermissionsApi().contains(getReadRequestPermissions()).then(result => {
//if there is a handler already, remove it
if (
"webRequest" in chrome &&
"onHeadersReceived" in chrome.webRequest &&
chrome.webRequest.onHeadersReceived.hasListener(headerListener)
) {
chrome.webRequest.onHeadersReceived.removeListener(headerListener);
}
//if the result was positive, add the headerListener
if (result) {
chrome.webRequest.onHeadersReceived.addListener(
headerListener,
{ urls: ["<all_urls>"] },
["responseHeaders"],
);
}
//notify the browser about this change, this operation is expensive
if ("webRequest" in chrome) {
chrome.webRequest.handlerBehaviorChanged(() => {
if (chrome.runtime.lastError) {
console.error(JSON.stringify(chrome.runtime.lastError));
}
});
}
});
}
function registerOnInstalled(callback: () => void) {
// This needs to be outside of main, as Firefox won't fire the event if
// the listener isn't created synchronously on loading the backend.
chrome.runtime.onInstalled.addListener((details) => {
console.log("onInstalled with reason", details.reason);
if (details.reason === chrome.runtime.OnInstalledReason.INSTALL) {
callback()
}
});
}
function useServiceWorkerAsBackgroundProcess() {
return chrome.runtime.getManifest().manifest_version === 3
}
function searchForTalerLinks(): string | undefined {
let found;
found = document.querySelector("a[href^='taler://'")
if (found) return found.toString()
found = document.querySelector("a[href^='taler+http://'")
if (found) return found.toString()
return undefined
}
async function getCurrentTab() {
let queryOptions = { active: true, currentWindow: true };
let [tab] = await chrome.tabs.query(queryOptions);
return tab;
}
async function findTalerUriInActiveTab(): Promise<string | undefined> {
if (chrome.runtime.getManifest().manifest_version === 3) {
// manifest v3
const tab = await getCurrentTab();
const res = await chrome.scripting.executeScript({
target: {
tabId: tab.id!,
allFrames: true,
} as any,
func: searchForTalerLinks,
args: []
})
return res[0].result
}
return new Promise((resolve, reject) => {
//manifest v2
chrome.tabs.executeScript(
{
code: `
(() => {
let x = document.querySelector("a[href^='taler://'") || document.querySelector("a[href^='taler+http://'");
return x ? x.href.toString() : null;
})();
`,
allFrames: false,
},
(result) => {
if (chrome.runtime.lastError) {
console.error(JSON.stringify(chrome.runtime.lastError));
resolve(undefined);
return;
}
resolve(result[0]);
},
);
});
}
|