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{ stdenv, lib, curl, writeText, runCommandCC, python3Packages, cacert
, pkgconfig, qt5
, email, password
}:
{ productId, downloadName, sha256, downloadType ? "installer", suffix ? "sh"
, name ? "${toString productId}-${downloadName}-${downloadType}.${suffix}"
}:
let
getCaptcha = let
mkCString = val: let
escaped = lib.replaceStrings ["\"" "\\" "\n"] ["\\\"" "\\\\" "\\n"] val;
in "\"${escaped}\"";
injectedJS = ''
var user_input = document.getElementById('login_username');
var pass_input = document.getElementById('login_password');
var submit_button = document.getElementById('login_login');
user_input.value = ${builtins.toJSON email};
user_input.style.display = 'none';
pass_input.value = ${builtins.toJSON password};
pass_input.style.display = 'none';
submit_button.style.display = 'none';
function waitForResponse() {
var response = grecaptcha.getResponse();
if (response != "")
submit_button.click();
else
setTimeout(waitForResponse, 50);
}
waitForResponse();
'';
application = writeText "captcha.cc" ''
#include <QApplication>
#include <QWebEngineView>
#include <QTcpServer>
#include <QQuickWebEngineProfile>
#include <QUrlQuery>
// Taken from lgogdownloader (https://github.com/Sude-/lgogdownloader):
static QString clientId = "46899977096215655";
static QString clientSecret =
"9d85c43b1482497dbbce61f6e4aa173a433796eeae2ca8c5f6129f2dc4de46d9";
static QString redirectUri =
"https://embed.gog.com/on_login_success?origin=client";
static QUrl getAuthUrl() {
QUrl url("https://auth.gog.com/auth");
QUrlQuery query;
query.addQueryItem("client_id", clientId);
query.addQueryItem("redirect_uri", redirectUri);
query.addQueryItem("response_type", "code");
query.addQueryItem("layout", "default");
query.addQueryItem("brand", "gog");
url.setQuery(query);
return url;
}
static QUrl getTokenUrl(const QString &code) {
QUrl url("https://auth.gog.com/token");
QUrlQuery query;
query.addQueryItem("client_id", clientId);
query.addQueryItem("client_secret", clientSecret);
query.addQueryItem("grant_type", "authorization_code");
query.addQueryItem("code", code);
query.addQueryItem("redirect_uri", redirectUri);
url.setQuery(query);
return url;
}
int main(int argc, char **argv) {
QApplication *app = new QApplication(argc, argv);
QTcpServer *server = new QTcpServer();
QWebEngineView *browser = new QWebEngineView();
QQuickWebEngineProfile::defaultProfile()->setOffTheRecord(true);
if (!server->listen(QHostAddress::LocalHost, 18321)) {
qCritical() << "Unable to listen on port 18321!";
return 1;
}
qInfo() << "Waiting for connection from the GOG login helper...";
if (!server->waitForNewConnection(-1)) {
qCritical() << "Unable to accept the connection!";
return 1;
}
qInfo() << "Connection established, spawning window to login.";
QTcpSocket *sock = server->nextPendingConnection();
browser->load(getAuthUrl());
browser->show();
browser->connect(browser, &QWebEngineView::loadFinished, [=]() {
browser->page()->runJavaScript(${mkCString injectedJS});
browser->connect(
browser, &QWebEngineView::urlChanged, [=](const QUrl &newurl
) {
QUrlQuery newquery(newurl.query());
QString code = newquery.queryItemValue("code");
sock->write(getTokenUrl(code).toEncoded());
sock->flush();
sock->waitForBytesWritten();
sock->close();
server->close();
app->quit();
});
});
return app->exec();
}
'';
in runCommandCC "get-captcha" {
nativeBuildInputs = [ pkgconfig ];
buildInputs = [ qt5.qtbase qt5.qtwebengine ];
} ''
g++ $(pkg-config --libs --cflags Qt5WebEngineWidgets Qt5WebEngine) \
-Wall -std=c++11 -o "$out" ${application}
'';
mkPyStr = str: "'${stdenv.lib.escape ["'" "\\"] (toString str)}'";
fetcher = writeText "fetch-gog.py" ''
import sys, socket, time
from urllib.request import urlopen, Request
from urllib.error import HTTPError
from json import loads
from tabulate import tabulate
class GogFetcher:
def __init__(self, product_id, download_type, download_name):
sys.stderr.write("Solving a captcha is required to log in.\n")
sys.stderr.write("Please run " ${mkPyStr getCaptcha} " now.\n")
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sys.stderr.write("Waiting for connection")
i = 0
while sock.connect_ex(("127.0.0.1", 18321)) != 0:
time.sleep(0.1)
if i % 10 == 0:
sys.stderr.write('.')
sys.stderr.flush()
i += 1
sys.stderr.write(" connected.\n")
sys.stderr.write("Waiting for captcha to be solved...\n")
token_url = sock.recv(4096)
sock.close()
sys.stderr.write("Captcha solved correctly, logging in.\n")
response = urlopen(
token_url.decode(),
cafile=${mkPyStr "${cacert}/etc/ssl/certs/ca-bundle.crt"}
)
self.product_id = product_id
self.download_type = download_type
self.download_name = download_name
self.access_token = loads(response.read())['access_token']
def request(self, url):
headers = {"Authorization": "Bearer " + self.access_token}
return loads(urlopen(
Request(url, headers=headers),
cafile=${mkPyStr "${cacert}/etc/ssl/certs/ca-bundle.crt"}
).read())
def strip_dtype(self, dtype):
if dtype.endswith('es'):
return dtype[:-2]
elif dtype.endswith('s'):
return dtype[:-1]
else:
return dtype
def list_downloads(self):
url = "https://api.gog.com/products/" + self.product_id \
+ "?expand=downloads"
downloads = self.request(url)['downloads']
table = []
for dtype, dloads in downloads.items():
for dload in dloads:
for dlfile in dload['files']:
table.append([
self.strip_dtype(dtype), dload.get('os', ""),
dload.get('language_full', ""),
dlfile['id'], dlfile['size'], dlfile['downlink']
])
sys.stderr.write(tabulate(table, headers=[
'Download type',
'Operating system',
'Language',
'Identifier',
'Size',
'URL'
]) + "\n")
def fetch(self):
url = "http://api.gog.com/products/" + self.product_id \
+ "/downlink/" + self.download_type + "/" + self.download_name
try:
download = self.request(url)
except HTTPError:
m = "Download {!r} with type {!r} not found.\nValid downloads are:\n"
sys.stderr.write(m.format(self.download_name, self.download_type))
self.list_downloads()
raise SystemExit(1)
else:
print(download['downlink'])
GogFetcher(sys.argv[1], sys.argv[2], sys.argv[3]).fetch()
'';
in stdenv.mkDerivation {
inherit name;
outputHashAlgo = "sha256";
outputHash = sha256;
nativeBuildInputs = [ curl python3Packages.tabulate ];
buildCommand = ''
url="$(${python3Packages.python.interpreter} ${fetcher} \
${toString productId} \
${lib.escapeShellArg downloadType} \
${lib.escapeShellArg downloadName})"
header "downloading $name from $url"
curl \
--cacert ${lib.escapeShellArg "${cacert}/etc/ssl/certs/ca-bundle.crt"} \
--fail --output "$out" "$url"
stopNest
'';
}
|
