/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtNetwork module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qnetworkrequest.h" #include "qnetworkrequest_p.h" #include "qplatformdefs.h" #include "qnetworkcookie.h" #include "qsslconfiguration.h" #include "QtCore/qshareddata.h" #include "QtCore/qlocale.h" #include "QtCore/qdatetime.h" #include #ifndef QT_NO_DATESTRING # include #endif #include QT_BEGIN_NAMESPACE /*! \class QNetworkRequest \since 4.4 \ingroup network \ingroup shared \inmodule QtNetwork \brief The QNetworkRequest class holds a request to be sent with QNetworkAccessManager. QNetworkRequest is part of the Network Access API and is the class holding the information necessary to send a request over the network. It contains a URL and some ancillary information that can be used to modify the request. \sa QNetworkReply, QNetworkAccessManager */ /*! \enum QNetworkRequest::KnownHeaders List of known header types that QNetworkRequest parses. Each known header is also represented in raw form with its full HTTP name. \value ContentDispositionHeader Corresponds to the HTTP Content-Disposition header and contains a string containing the disposition type (for instance, attachment) and a parameter (for instance, filename). \value ContentTypeHeader Corresponds to the HTTP Content-Type header and contains a string containing the media (MIME) type and any auxiliary data (for instance, charset). \value ContentLengthHeader Corresponds to the HTTP Content-Length header and contains the length in bytes of the data transmitted. \value LocationHeader Corresponds to the HTTP Location header and contains a URL representing the actual location of the data, including the destination URL in case of redirections. \value LastModifiedHeader Corresponds to the HTTP Last-Modified header and contains a QDateTime representing the last modification date of the contents. \value CookieHeader Corresponds to the HTTP Cookie header and contains a QList representing the cookies to be sent back to the server. \value SetCookieHeader Corresponds to the HTTP Set-Cookie header and contains a QList representing the cookies sent by the server to be stored locally. \value UserAgentHeader The User-Agent header sent by HTTP clients. \value ServerHeader The Server header received by HTTP clients. \sa header(), setHeader(), rawHeader(), setRawHeader() */ /*! \enum QNetworkRequest::Attribute \since 4.7 Attribute codes for the QNetworkRequest and QNetworkReply. Attributes are extra meta-data that are used to control the behavior of the request and to pass further information from the reply back to the application. Attributes are also extensible, allowing custom implementations to pass custom values. The following table explains what the default attribute codes are, the QVariant types associated, the default value if said attribute is missing and whether it's used in requests or replies. \value HttpStatusCodeAttribute Replies only, type: QMetaType::Int (no default) Indicates the HTTP status code received from the HTTP server (like 200, 304, 404, 401, etc.). If the connection was not HTTP-based, this attribute will not be present. \value HttpReasonPhraseAttribute Replies only, type: QMetaType::QByteArray (no default) Indicates the HTTP reason phrase as received from the HTTP server (like "Ok", "Found", "Not Found", "Access Denied", etc.) This is the human-readable representation of the status code (see above). If the connection was not HTTP-based, this attribute will not be present. \value RedirectionTargetAttribute Replies only, type: QMetaType::QUrl (no default) If present, it indicates that the server is redirecting the request to a different URL. The Network Access API does not by default follow redirections: the application can determine if the requested redirection should be allowed, according to its security policies, or it can set QNetworkRequest::FollowRedirectsAttribute to true (in which case the redirection will be followed and this attribute will not be present in the reply). The returned URL might be relative. Use QUrl::resolved() to create an absolute URL out of it. \value ConnectionEncryptedAttribute Replies only, type: QMetaType::Bool (default: false) Indicates whether the data was obtained through an encrypted (secure) connection. \value CacheLoadControlAttribute Requests only, type: QMetaType::Int (default: QNetworkRequest::PreferNetwork) Controls how the cache should be accessed. The possible values are those of QNetworkRequest::CacheLoadControl. Note that the default QNetworkAccessManager implementation does not support caching. However, this attribute may be used by certain backends to modify their requests (for example, for caching proxies). \value CacheSaveControlAttribute Requests only, type: QMetaType::Bool (default: true) Controls if the data obtained should be saved to cache for future uses. If the value is false, the data obtained will not be automatically cached. If true, data may be cached, provided it is cacheable (what is cacheable depends on the protocol being used). \value SourceIsFromCacheAttribute Replies only, type: QMetaType::Bool (default: false) Indicates whether the data was obtained from cache or not. \value DoNotBufferUploadDataAttribute Requests only, type: QMetaType::Bool (default: false) Indicates whether the QNetworkAccessManager code is allowed to buffer the upload data, e.g. when doing a HTTP POST. When using this flag with sequential upload data, the ContentLengthHeader header must be set. \value HttpPipeliningAllowedAttribute Requests only, type: QMetaType::Bool (default: false) Indicates whether the QNetworkAccessManager code is allowed to use HTTP pipelining with this request. \value HttpPipeliningWasUsedAttribute Replies only, type: QMetaType::Bool Indicates whether the HTTP pipelining was used for receiving this reply. \value CustomVerbAttribute Requests only, type: QMetaType::QByteArray Holds the value for the custom HTTP verb to send (destined for usage of other verbs than GET, POST, PUT and DELETE). This verb is set when calling QNetworkAccessManager::sendCustomRequest(). \value CookieLoadControlAttribute Requests only, type: QMetaType::Int (default: QNetworkRequest::Automatic) Indicates whether to send 'Cookie' headers in the request. This attribute is set to false by Qt WebKit when creating a cross-origin XMLHttpRequest where withCredentials has not been set explicitly to true by the Javascript that created the request. See \l{http://www.w3.org/TR/XMLHttpRequest2/#credentials-flag}{here} for more information. (This value was introduced in 4.7.) \value CookieSaveControlAttribute Requests only, type: QMetaType::Int (default: QNetworkRequest::Automatic) Indicates whether to save 'Cookie' headers received from the server in reply to the request. This attribute is set to false by Qt WebKit when creating a cross-origin XMLHttpRequest where withCredentials has not been set explicitly to true by the Javascript that created the request. See \l{http://www.w3.org/TR/XMLHttpRequest2/#credentials-flag} {here} for more information. (This value was introduced in 4.7.) \value AuthenticationReuseAttribute Requests only, type: QMetaType::Int (default: QNetworkRequest::Automatic) Indicates whether to use cached authorization credentials in the request, if available. If this is set to QNetworkRequest::Manual and the authentication mechanism is 'Basic' or 'Digest', Qt will not send an an 'Authorization' HTTP header with any cached credentials it may have for the request's URL. This attribute is set to QNetworkRequest::Manual by Qt WebKit when creating a cross-origin XMLHttpRequest where withCredentials has not been set explicitly to true by the Javascript that created the request. See \l{http://www.w3.org/TR/XMLHttpRequest2/#credentials-flag} {here} for more information. (This value was introduced in 4.7.) \omitvalue MaximumDownloadBufferSizeAttribute \omitvalue DownloadBufferAttribute \omitvalue SynchronousRequestAttribute \value BackgroundRequestAttribute Type: QMetaType::Bool (default: false) Indicates that this is a background transfer, rather than a user initiated transfer. Depending on the platform, background transfers may be subject to different policies. The QNetworkSession ConnectInBackground property will be set according to this attribute. \value SpdyAllowedAttribute Requests only, type: QMetaType::Bool (default: false) Indicates whether the QNetworkAccessManager code is allowed to use SPDY with this request. This applies only to SSL requests, and depends on the server supporting SPDY. \value SpdyWasUsedAttribute Replies only, type: QMetaType::Bool Indicates whether SPDY was used for receiving this reply. \value HTTP2AllowedAttribute Requests only, type: QMetaType::Bool (default: false) Indicates whether the QNetworkAccessManager code is allowed to use HTTP/2 with this request. This applies to SSL requests or 'cleartext' HTTP/2. \value HTTP2WasUsedAttribute Replies only, type: QMetaType::Bool (default: false) Indicates whether HTTP/2 was used for receiving this reply. (This value was introduced in 5.9.) \value EmitAllUploadProgressSignalsAttribute Requests only, type: QMetaType::Bool (default: false) Indicates whether all upload signals should be emitted. By default, the uploadProgress signal is emitted only in 100 millisecond intervals. (This value was introduced in 5.5.) \value FollowRedirectsAttribute Requests only, type: QMetaType::Bool (default: false) Indicates whether the Network Access API should automatically follow a HTTP redirect response or not. Currently redirects that are insecure, that is redirecting from "https" to "http" protocol, are not allowed. (This value was introduced in 5.6.) \value OriginalContentLengthAttribute Replies only, type QMetaType::Int Holds the original content-length attribute before being invalidated and removed from the header when the data is compressed and the request was marked to be decompressed automatically. (This value was introduced in 5.9.) \value RedirectPolicyAttribute Requests only, type: QMetaType::Int, should be one of the QNetworkRequest::RedirectPolicy values (default: ManualRedirectPolicy). This attribute obsoletes FollowRedirectsAttribute. (This value was introduced in 5.9.) \value User Special type. Additional information can be passed in QVariants with types ranging from User to UserMax. The default implementation of Network Access will ignore any request attributes in this range and it will not produce any attributes in this range in replies. The range is reserved for extensions of QNetworkAccessManager. \value UserMax Special type. See User. */ /*! \enum QNetworkRequest::CacheLoadControl Controls the caching mechanism of QNetworkAccessManager. \value AlwaysNetwork always load from network and do not check if the cache has a valid entry (similar to the "Reload" feature in browsers); in addition, force intermediate caches to re-validate. \value PreferNetwork default value; load from the network if the cached entry is older than the network entry. This will never return stale data from the cache, but revalidate resources that have become stale. \value PreferCache load from cache if available, otherwise load from network. Note that this can return possibly stale (but not expired) items from cache. \value AlwaysCache only load from cache, indicating error if the item was not cached (i.e., off-line mode) */ /*! \enum QNetworkRequest::LoadControl \since 4.7 Indicates if an aspect of the request's loading mechanism has been manually overridden, e.g. by Qt WebKit. \value Automatic default value: indicates default behaviour. \value Manual indicates behaviour has been manually overridden. */ /*! \enum QNetworkRequest::RedirectPolicy \since 5.9 Indicates whether the Network Access API should automatically follow a HTTP redirect response or not. \value ManualRedirectPolicy Default value: not following any redirects. \value NoLessSafeRedirectPolicy Only "http"->"http", "http" -> "https" or "https" -> "https" redirects are allowed. Equivalent to setting the old FollowRedirectsAttribute to true \value SameOriginRedirectPolicy Require the same protocol, host and port. Note, http://example.com and http://example.com:80 will fail with this policy (implicit/explicit ports are considered to be a mismatch). \value UserVerifiedRedirectPolicy Client decides whether to follow each redirect by handling the redirected() signal, emitting redirectAllowed() on the QNetworkReply object to allow the redirect or aborting/finishing it to reject the redirect. This can be used, for example, to ask the user whether to accept the redirect, or to decide based on some app-specific configuration. */ class QNetworkRequestPrivate: public QSharedData, public QNetworkHeadersPrivate { public: static const int maxRedirectCount = 50; inline QNetworkRequestPrivate() : priority(QNetworkRequest::NormalPriority) #ifndef QT_NO_SSL , sslConfiguration(0) #endif , maxRedirectsAllowed(maxRedirectCount) { qRegisterMetaType(); } ~QNetworkRequestPrivate() { #ifndef QT_NO_SSL delete sslConfiguration; #endif } QNetworkRequestPrivate(const QNetworkRequestPrivate &other) : QSharedData(other), QNetworkHeadersPrivate(other) { url = other.url; priority = other.priority; maxRedirectsAllowed = other.maxRedirectsAllowed; #ifndef QT_NO_SSL sslConfiguration = 0; if (other.sslConfiguration) sslConfiguration = new QSslConfiguration(*other.sslConfiguration); #endif } inline bool operator==(const QNetworkRequestPrivate &other) const { return url == other.url && priority == other.priority && rawHeaders == other.rawHeaders && attributes == other.attributes && maxRedirectsAllowed == other.maxRedirectsAllowed; // don't compare cookedHeaders } QUrl url; QNetworkRequest::Priority priority; #ifndef QT_NO_SSL mutable QSslConfiguration *sslConfiguration; #endif int maxRedirectsAllowed; }; /*! Constructs a QNetworkRequest object with \a url as the URL to be requested. \sa url(), setUrl() */ QNetworkRequest::QNetworkRequest(const QUrl &url) : d(new QNetworkRequestPrivate) { d->url = url; } /*! Creates a copy of \a other. */ QNetworkRequest::QNetworkRequest(const QNetworkRequest &other) : d(other.d) { } /*! Disposes of the QNetworkRequest object. */ QNetworkRequest::~QNetworkRequest() { // QSharedDataPointer auto deletes d = 0; } /*! Returns \c true if this object is the same as \a other (i.e., if they have the same URL, same headers and same meta-data settings). \sa operator!=() */ bool QNetworkRequest::operator==(const QNetworkRequest &other) const { return d == other.d || *d == *other.d; } /*! \fn bool QNetworkRequest::operator!=(const QNetworkRequest &other) const Returns \c false if this object is not the same as \a other. \sa operator==() */ /*! Creates a copy of \a other */ QNetworkRequest &QNetworkRequest::operator=(const QNetworkRequest &other) { d = other.d; return *this; } /*! \fn void QNetworkRequest::swap(QNetworkRequest &other) \since 5.0 Swaps this network request with \a other. This function is very fast and never fails. */ /*! Returns the URL this network request is referring to. \sa setUrl() */ QUrl QNetworkRequest::url() const { return d->url; } /*! Sets the URL this network request is referring to be \a url. \sa url() */ void QNetworkRequest::setUrl(const QUrl &url) { d->url = url; } /*! Returns the value of the known network header \a header if it is present in this request. If it is not present, returns QVariant() (i.e., an invalid variant). \sa KnownHeaders, rawHeader(), setHeader() */ QVariant QNetworkRequest::header(KnownHeaders header) const { return d->cookedHeaders.value(header); } /*! Sets the value of the known header \a header to be \a value, overriding any previously set headers. This operation also sets the equivalent raw HTTP header. \sa KnownHeaders, setRawHeader(), header() */ void QNetworkRequest::setHeader(KnownHeaders header, const QVariant &value) { d->setCookedHeader(header, value); } /*! Returns \c true if the raw header \a headerName is present in this network request. \sa rawHeader(), setRawHeader() */ bool QNetworkRequest::hasRawHeader(const QByteArray &headerName) const { return d->findRawHeader(headerName) != d->rawHeaders.constEnd(); } /*! Returns the raw form of header \a headerName. If no such header is present, an empty QByteArray is returned, which may be indistinguishable from a header that is present but has no content (use hasRawHeader() to find out if the header exists or not). Raw headers can be set with setRawHeader() or with setHeader(). \sa header(), setRawHeader() */ QByteArray QNetworkRequest::rawHeader(const QByteArray &headerName) const { QNetworkHeadersPrivate::RawHeadersList::ConstIterator it = d->findRawHeader(headerName); if (it != d->rawHeaders.constEnd()) return it->second; return QByteArray(); } /*! Returns a list of all raw headers that are set in this network request. The list is in the order that the headers were set. \sa hasRawHeader(), rawHeader() */ QList QNetworkRequest::rawHeaderList() const { return d->rawHeadersKeys(); } /*! Sets the header \a headerName to be of value \a headerValue. If \a headerName corresponds to a known header (see QNetworkRequest::KnownHeaders), the raw format will be parsed and the corresponding "cooked" header will be set as well. For example: \snippet code/src_network_access_qnetworkrequest.cpp 0 will also set the known header LastModifiedHeader to be the QDateTime object of the parsed date. \note Setting the same header twice overrides the previous setting. To accomplish the behaviour of multiple HTTP headers of the same name, you should concatenate the two values, separating them with a comma (",") and set one single raw header. \sa KnownHeaders, setHeader(), hasRawHeader(), rawHeader() */ void QNetworkRequest::setRawHeader(const QByteArray &headerName, const QByteArray &headerValue) { d->setRawHeader(headerName, headerValue); } /*! Returns the attribute associated with the code \a code. If the attribute has not been set, it returns \a defaultValue. \note This function does not apply the defaults listed in QNetworkRequest::Attribute. \sa setAttribute(), QNetworkRequest::Attribute */ QVariant QNetworkRequest::attribute(Attribute code, const QVariant &defaultValue) const { return d->attributes.value(code, defaultValue); } /*! Sets the attribute associated with code \a code to be value \a value. If the attribute is already set, the previous value is discarded. In special, if \a value is an invalid QVariant, the attribute is unset. \sa attribute(), QNetworkRequest::Attribute */ void QNetworkRequest::setAttribute(Attribute code, const QVariant &value) { if (value.isValid()) d->attributes.insert(code, value); else d->attributes.remove(code); } #ifndef QT_NO_SSL /*! Returns this network request's SSL configuration. By default, no SSL settings are specified. \sa setSslConfiguration() */ QSslConfiguration QNetworkRequest::sslConfiguration() const { if (!d->sslConfiguration) d->sslConfiguration = new QSslConfiguration(QSslConfiguration::defaultConfiguration()); return *d->sslConfiguration; } /*! Sets this network request's SSL configuration to be \a config. The settings that apply are the private key, the local certificate, the SSL protocol (SSLv2, SSLv3, TLSv1.0 where applicable), the CA certificates and the ciphers that the SSL backend is allowed to use. By default, no SSL configuration is set, which allows the backends to choose freely what configuration is best for them. \sa sslConfiguration(), QSslConfiguration::defaultConfiguration() */ void QNetworkRequest::setSslConfiguration(const QSslConfiguration &config) { if (!d->sslConfiguration) d->sslConfiguration = new QSslConfiguration(config); else *d->sslConfiguration = config; } #endif /*! \since 4.6 Allows setting a reference to the \a object initiating the request. For example Qt WebKit sets the originating object to the QWebFrame that initiated the request. \sa originatingObject() */ void QNetworkRequest::setOriginatingObject(QObject *object) { d->originatingObject = object; } /*! \since 4.6 Returns a reference to the object that initiated this network request; returns 0 if not set or the object has been destroyed. \sa setOriginatingObject() */ QObject *QNetworkRequest::originatingObject() const { return d->originatingObject.data(); } /*! \since 4.7 Return the priority of this request. \sa setPriority() */ QNetworkRequest::Priority QNetworkRequest::priority() const { return d->priority; } /*! \enum QNetworkRequest::Priority \since 4.7 This enum lists the possible network request priorities. \value HighPriority High priority \value NormalPriority Normal priority \value LowPriority Low priority */ /*! \since 4.7 Set the priority of this request to \a priority. \note The \a priority is only a hint to the network access manager. It can use it or not. Currently it is used for HTTP to decide which request should be sent first to a server. \sa priority() */ void QNetworkRequest::setPriority(Priority priority) { d->priority = priority; } /*! \since 5.6 Returns the maximum number of redirects allowed to be followed for this request. \sa setMaximumRedirectsAllowed() */ int QNetworkRequest::maximumRedirectsAllowed() const { return d->maxRedirectsAllowed; } /*! \since 5.6 Sets the maximum number of redirects allowed to be followed for this request to \a maxRedirectsAllowed. \sa maximumRedirectsAllowed() */ void QNetworkRequest::setMaximumRedirectsAllowed(int maxRedirectsAllowed) { d->maxRedirectsAllowed = maxRedirectsAllowed; } static QByteArray headerName(QNetworkRequest::KnownHeaders header) { switch (header) { case QNetworkRequest::ContentTypeHeader: return "Content-Type"; case QNetworkRequest::ContentLengthHeader: return "Content-Length"; case QNetworkRequest::LocationHeader: return "Location"; case QNetworkRequest::LastModifiedHeader: return "Last-Modified"; case QNetworkRequest::CookieHeader: return "Cookie"; case QNetworkRequest::SetCookieHeader: return "Set-Cookie"; case QNetworkRequest::ContentDispositionHeader: return "Content-Disposition"; case QNetworkRequest::UserAgentHeader: return "User-Agent"; case QNetworkRequest::ServerHeader: return "Server"; // no default: // if new values are added, this will generate a compiler warning } return QByteArray(); } static QByteArray headerValue(QNetworkRequest::KnownHeaders header, const QVariant &value) { switch (header) { case QNetworkRequest::ContentTypeHeader: case QNetworkRequest::ContentLengthHeader: case QNetworkRequest::ContentDispositionHeader: case QNetworkRequest::UserAgentHeader: case QNetworkRequest::ServerHeader: return value.toByteArray(); case QNetworkRequest::LocationHeader: switch (value.userType()) { case QMetaType::QUrl: return value.toUrl().toEncoded(); default: return value.toByteArray(); } case QNetworkRequest::LastModifiedHeader: switch (value.userType()) { case QMetaType::QDate: case QMetaType::QDateTime: // generate RFC 1123/822 dates: return QNetworkHeadersPrivate::toHttpDate(value.toDateTime()); default: return value.toByteArray(); } case QNetworkRequest::CookieHeader: { QList cookies = qvariant_cast >(value); if (cookies.isEmpty() && value.userType() == qMetaTypeId()) cookies << qvariant_cast(value); QByteArray result; bool first = true; for (const QNetworkCookie &cookie : qAsConst(cookies)) { if (!first) result += "; "; first = false; result += cookie.toRawForm(QNetworkCookie::NameAndValueOnly); } return result; } case QNetworkRequest::SetCookieHeader: { QList cookies = qvariant_cast >(value); if (cookies.isEmpty() && value.userType() == qMetaTypeId()) cookies << qvariant_cast(value); QByteArray result; bool first = true; for (const QNetworkCookie &cookie : qAsConst(cookies)) { if (!first) result += ", "; first = false; result += cookie.toRawForm(QNetworkCookie::Full); } return result; } } return QByteArray(); } static int parseHeaderName(const QByteArray &headerName) { if (headerName.isEmpty()) return -1; switch (tolower(headerName.at(0))) { case 'c': if (qstricmp(headerName.constData(), "content-type") == 0) return QNetworkRequest::ContentTypeHeader; else if (qstricmp(headerName.constData(), "content-length") == 0) return QNetworkRequest::ContentLengthHeader; else if (qstricmp(headerName.constData(), "cookie") == 0) return QNetworkRequest::CookieHeader; break; case 'l': if (qstricmp(headerName.constData(), "location") == 0) return QNetworkRequest::LocationHeader; else if (qstricmp(headerName.constData(), "last-modified") == 0) return QNetworkRequest::LastModifiedHeader; break; case 's': if (qstricmp(headerName.constData(), "set-cookie") == 0) return QNetworkRequest::SetCookieHeader; else if (qstricmp(headerName.constData(), "server") == 0) return QNetworkRequest::ServerHeader; break; case 'u': if (qstricmp(headerName.constData(), "user-agent") == 0) return QNetworkRequest::UserAgentHeader; break; } return -1; // nothing found } static QVariant parseHttpDate(const QByteArray &raw) { QDateTime dt = QNetworkHeadersPrivate::fromHttpDate(raw); if (dt.isValid()) return dt; return QVariant(); // transform an invalid QDateTime into a null QVariant } static QVariant parseCookieHeader(const QByteArray &raw) { QList result; const QList cookieList = raw.split(';'); for (const QByteArray &cookie : cookieList) { QList parsed = QNetworkCookie::parseCookies(cookie.trimmed()); if (parsed.count() != 1) return QVariant(); // invalid Cookie: header result += parsed; } return QVariant::fromValue(result); } static QVariant parseHeaderValue(QNetworkRequest::KnownHeaders header, const QByteArray &value) { // header is always a valid value switch (header) { case QNetworkRequest::UserAgentHeader: case QNetworkRequest::ServerHeader: case QNetworkRequest::ContentTypeHeader: // copy exactly, convert to QString return QString::fromLatin1(value); case QNetworkRequest::ContentLengthHeader: { bool ok; qint64 result = value.trimmed().toLongLong(&ok); if (ok) return result; return QVariant(); } case QNetworkRequest::LocationHeader: { QUrl result = QUrl::fromEncoded(value, QUrl::StrictMode); if (result.isValid() && !result.scheme().isEmpty()) return result; return QVariant(); } case QNetworkRequest::LastModifiedHeader: return parseHttpDate(value); case QNetworkRequest::CookieHeader: return parseCookieHeader(value); case QNetworkRequest::SetCookieHeader: return QVariant::fromValue(QNetworkCookie::parseCookies(value)); default: Q_ASSERT(0); } return QVariant(); } QNetworkHeadersPrivate::RawHeadersList::ConstIterator QNetworkHeadersPrivate::findRawHeader(const QByteArray &key) const { RawHeadersList::ConstIterator it = rawHeaders.constBegin(); RawHeadersList::ConstIterator end = rawHeaders.constEnd(); for ( ; it != end; ++it) if (qstricmp(it->first.constData(), key.constData()) == 0) return it; return end; // not found } QNetworkHeadersPrivate::RawHeadersList QNetworkHeadersPrivate::allRawHeaders() const { return rawHeaders; } QList QNetworkHeadersPrivate::rawHeadersKeys() const { QList result; result.reserve(rawHeaders.size()); RawHeadersList::ConstIterator it = rawHeaders.constBegin(), end = rawHeaders.constEnd(); for ( ; it != end; ++it) result << it->first; return result; } void QNetworkHeadersPrivate::setRawHeader(const QByteArray &key, const QByteArray &value) { if (key.isEmpty()) // refuse to accept an empty raw header return; setRawHeaderInternal(key, value); parseAndSetHeader(key, value); } /*! \internal Sets the internal raw headers list to match \a list. The cooked headers will also be updated. If \a list contains duplicates, they will be stored, but only the first one is usually accessed. */ void QNetworkHeadersPrivate::setAllRawHeaders(const RawHeadersList &list) { cookedHeaders.clear(); rawHeaders = list; RawHeadersList::ConstIterator it = rawHeaders.constBegin(); RawHeadersList::ConstIterator end = rawHeaders.constEnd(); for ( ; it != end; ++it) parseAndSetHeader(it->first, it->second); } void QNetworkHeadersPrivate::setCookedHeader(QNetworkRequest::KnownHeaders header, const QVariant &value) { QByteArray name = headerName(header); if (name.isEmpty()) { // headerName verifies that \a header is a known value qWarning("QNetworkRequest::setHeader: invalid header value KnownHeader(%d) received", header); return; } if (value.isNull()) { setRawHeaderInternal(name, QByteArray()); cookedHeaders.remove(header); } else { QByteArray rawValue = headerValue(header, value); if (rawValue.isEmpty()) { qWarning("QNetworkRequest::setHeader: QVariant of type %s cannot be used with header %s", value.typeName(), name.constData()); return; } setRawHeaderInternal(name, rawValue); cookedHeaders.insert(header, value); } } void QNetworkHeadersPrivate::setRawHeaderInternal(const QByteArray &key, const QByteArray &value) { auto firstEqualsKey = [&key](const RawHeaderPair &header) { return qstricmp(header.first.constData(), key.constData()) == 0; }; rawHeaders.erase(std::remove_if(rawHeaders.begin(), rawHeaders.end(), firstEqualsKey), rawHeaders.end()); if (value.isNull()) return; // only wanted to erase key RawHeaderPair pair; pair.first = key; pair.second = value; rawHeaders.append(pair); } void QNetworkHeadersPrivate::parseAndSetHeader(const QByteArray &key, const QByteArray &value) { // is it a known header? const int parsedKeyAsInt = parseHeaderName(key); if (parsedKeyAsInt != -1) { const QNetworkRequest::KnownHeaders parsedKey = static_cast(parsedKeyAsInt); if (value.isNull()) { cookedHeaders.remove(parsedKey); } else if (parsedKey == QNetworkRequest::ContentLengthHeader && cookedHeaders.contains(QNetworkRequest::ContentLengthHeader)) { // Only set the cooked header "Content-Length" once. // See bug QTBUG-15311 } else { cookedHeaders.insert(parsedKey, parseHeaderValue(parsedKey, value)); } } } // Fast month string to int conversion. This code // assumes that the Month name is correct and that // the string is at least three chars long. static int name_to_month(const char* month_str) { switch (month_str[0]) { case 'J': switch (month_str[1]) { case 'a': return 1; case 'u': switch (month_str[2] ) { case 'n': return 6; case 'l': return 7; } } break; case 'F': return 2; case 'M': switch (month_str[2] ) { case 'r': return 3; case 'y': return 5; } break; case 'A': switch (month_str[1]) { case 'p': return 4; case 'u': return 8; } break; case 'O': return 10; case 'S': return 9; case 'N': return 11; case 'D': return 12; } return 0; } QDateTime QNetworkHeadersPrivate::fromHttpDate(const QByteArray &value) { // HTTP dates have three possible formats: // RFC 1123/822 - ddd, dd MMM yyyy hh:mm:ss "GMT" // RFC 850 - dddd, dd-MMM-yy hh:mm:ss "GMT" // ANSI C's asctime - ddd MMM d hh:mm:ss yyyy // We only handle them exactly. If they deviate, we bail out. int pos = value.indexOf(','); QDateTime dt; #ifndef QT_NO_DATESTRING if (pos == -1) { // no comma -> asctime(3) format dt = QDateTime::fromString(QString::fromLatin1(value), Qt::TextDate); } else { // Use sscanf over QLocal/QDateTimeParser for speed reasons. See the // Qt WebKit performance benchmarks to get an idea. if (pos == 3) { char month_name[4]; int day, year, hour, minute, second; #ifdef Q_CC_MSVC // Use secure version to avoid compiler warning if (sscanf_s(value.constData(), "%*3s, %d %3s %d %d:%d:%d 'GMT'", &day, month_name, 4, &year, &hour, &minute, &second) == 6) #else // The POSIX secure mode is %ms (which allocates memory), too bleeding edge for now // In any case this is already safe as field width is specified. if (sscanf(value.constData(), "%*3s, %d %3s %d %d:%d:%d 'GMT'", &day, month_name, &year, &hour, &minute, &second) == 6) #endif dt = QDateTime(QDate(year, name_to_month(month_name), day), QTime(hour, minute, second)); } else { QLocale c = QLocale::c(); // eat the weekday, the comma and the space following it QString sansWeekday = QString::fromLatin1(value.constData() + pos + 2); // must be RFC 850 date dt = c.toDateTime(sansWeekday, QLatin1String("dd-MMM-yy hh:mm:ss 'GMT'")); } } #endif // QT_NO_DATESTRING if (dt.isValid()) dt.setTimeSpec(Qt::UTC); return dt; } QByteArray QNetworkHeadersPrivate::toHttpDate(const QDateTime &dt) { return QLocale::c().toString(dt, QLatin1String("ddd, dd MMM yyyy hh:mm:ss 'GMT'")) .toLatin1(); } QT_END_NAMESPACE