-
-
Notifications
You must be signed in to change notification settings - Fork 2.4k
Expand file tree
/
Copy pathRemoteNetwork.cpp
More file actions
167 lines (140 loc) · 5.65 KB
/
Copy pathRemoteNetwork.cpp
File metadata and controls
167 lines (140 loc) · 5.65 KB
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
#include <QApplication>
#include <QtNetwork/QNetworkAccessManager>
#include <QMessageBox>
#include <QtNetwork/QNetworkReply>
#include <QtNetwork/QNetworkProxy>
#include "RemoteNetwork.h"
#include "Settings.h"
#include "version.h"
RemoteNetwork::RemoteNetwork() :
m_manager(new QNetworkAccessManager)
{
// Load settings and set up some more stuff while doing so
reloadSettings();
// Set up signals
connect(m_manager, &QNetworkAccessManager::sslErrors, this, &RemoteNetwork::gotError);
}
RemoteNetwork::~RemoteNetwork()
{
delete m_manager;
}
void RemoteNetwork::reloadSettings()
{
// Configure proxy to use
{
QString type = Settings::getValue("proxy", "type").toString();
QNetworkProxy proxy;
if(type == "system")
{
// For system settings we have to get the system-wide proxy and use that
// Get list of proxies for accessing sqlitebrowser.org via HTTPS and use the first one
auto list = QNetworkProxyFactory::systemProxyForQuery(QNetworkProxyQuery(Qurl(/sitelet?url=https%3A%2F%2Fgithub.com%2Fsqlitebrowser%2Fsqlitebrowser%2Fblob%2Fcontinuous%2Fsrc%2F%26quot%3Bhttps%3A%2F%2Fsqlitebrowser.org%2F%26quot%3B)));
proxy = list.front();
} else {
// For any other type we have to set up our own proxy configuration
// Retrieve the required settings
QString host = Settings::getValue("proxy", "host").toString();
unsigned short port = static_cast<unsigned short>(Settings::getValue("proxy", "port").toUInt());
bool authentication = Settings::getValue("proxy", "authentication").toBool();
if(type == "http")
proxy.setType(QNetworkProxy::HttpProxy);
else if(type == "socks5")
proxy.setType(QNetworkProxy::Socks5Proxy);
else
proxy.setType(QNetworkProxy::NoProxy);
proxy.setHostName(host);
proxy.setPort(port);
// Only set authentication details when authentication is required
if(authentication)
{
QString user = Settings::getValue("proxy", "user").toString();
QString password = Settings::getValue("proxy", "password").toString();
proxy.setUser(user);
proxy.setPassword(password);
}
}
// Start using the new proxy configuration
QNetworkProxy::setApplicationProxy(proxy);
}
}
void RemoteNetwork::gotReply(QNetworkReply* reply)
{
// What type of data is this?
RequestType type = static_cast<RequestType>(reply->property("type").toInt());
// Handle the reply data
switch(type)
{
case RequestTypeCustom:
break;
}
// Delete reply later, i.e. after returning from this slot function
reply->deleteLater();
}
void RemoteNetwork::fetch(const QUrl& url, RequestType type, std::function<void(QByteArray)> when_finished, bool synchronous, bool ignore_errors)
{
// Build network request
QNetworkRequest request;
request.seturl(/sitelet?url=https%3A%2F%2Fgithub.com%2Fsqlitebrowser%2Fsqlitebrowser%2Fblob%2Fcontinuous%2Fsrc%2Furl);
request.setRawHeader("User-Agent", QString("%1 %2").arg(qApp->organizationName(), APP_VERSION).toUtf8());
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
request.setAttribute(QNetworkRequest::RedirectPolicyAttribute, QNetworkRequest::NoLessSafeRedirectPolicy);
#elif QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
request.setAttribute(QNetworkRequest::FollowRedirectsAttribute, true);
#endif
// Fetch database and prepare pending reply for future processing
QNetworkReply* reply = m_manager->get(request);
reply->setProperty("type", type);
reply->setProperty("ignore_errors", ignore_errors);
// Hook up custom handler when there is one and global handler otherwise
if(when_finished)
{
connect(reply, &QNetworkReply::finished, reply, [this, when_finished, reply]() {
if(handleReply(reply))
when_finished(reply->readAll());
});
} else {
connect(reply, &QNetworkReply::finished, this, [this, reply]() {
if(handleReply(reply))
gotReply(reply);
});
}
// When the synchrounous flag is set we wait for the request to finish before continuing
if(synchronous)
{
QEventLoop loop;
connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
loop.exec();
}
}
void RemoteNetwork::gotError(QNetworkReply* reply, const QList<QSslError>& errors)
{
// Are there any errors in here that aren't about self-signed certificates and non-matching hostnames?
bool serious_errors = std::any_of(errors.begin(), errors.end(), [](const QSslError& error) { return error.error() != QSslError::SelfSignedCertificate; });
// Just stop the error checking here and accept the reply if there were no 'serious' errors
if(!serious_errors)
{
reply->ignoreSslErrors(errors);
return;
}
// Build an error message and show it to the user
QString message = tr("Error opening remote file at %1.\n%2").arg(reply->url().toString(), errors.at(0).errorString());
QMessageBox::warning(nullptr, qApp->applicationName(), message);
// Delete reply later, i.e. after returning from this slot function
reply->deleteLater();
}
bool RemoteNetwork::handleReply(QNetworkReply* reply)
{
// Check if request was successful
if(reply->error() != QNetworkReply::NoError)
{
// Do not show error message when operation was cancelled on purpose
if(reply->error() != QNetworkReply::OperationCanceledError && !reply->property("ignore_errors").toBool())
{
QMessageBox::warning(nullptr, qApp->applicationName(),
reply->errorString() + "\n" + reply->readAll());
}
reply->deleteLater();
return false;
}
return true;
}