add HTTP DELETE support to Network Access API

added new method QNetworkAccessManager::deleteResource (naming the
method "delete" was not possible since it is a reserverd word in
C++) and adjusted all the internals necessary.

Task-number: 242916
Reviewed-by: Thiago

3 files changed, 29 insertions, 2 deletions

diff --git a/src/network/access/qnetworkaccesshttpbackend.cpp b/src/network/access/qnetworkaccesshttpbackend.cpp
index bd364cb..7517000 100644
--- a/src/network/access/qnetworkaccesshttpbackend.cpp
+++ b/src/network/access/qnetworkaccesshttpbackend.cpp
@@ -212,6 +212,7 @@ QNetworkAccessHttpBackendFactory::create(QNetworkAccessManager::Operation op,
     case QNetworkAccessManager::PostOperation:
     case QNetworkAccessManager::HeadOperation:
     case QNetworkAccessManager::PutOperation:
+    case QNetworkAccessManager::DeleteOperation:
         break;
 
     default:
@@ -244,6 +245,10 @@ static QNetworkReply::NetworkError statusCodeFromHttp(int httpStatusCode, const
         code = QNetworkReply::ContentNotFoundError;
         break;
 
+    case 405:               // Method Not Allowed
+        code = QNetworkReply::ContentOperationNotPermittedError;
+        break;
+
     case 407:
         code = QNetworkReply::ProxyAuthenticationRequiredError;
         break;
@@ -485,6 +490,11 @@ void QNetworkAccessHttpBackend::postRequest()
         httpRequest.setUploadByteDevice(createUploadByteDevice());
         break;
 
+    case QNetworkAccessManager::DeleteOperation:
+        invalidateCache();
+        httpRequest.setOperation(QHttpNetworkRequest::Delete);
+        break;
+
     default:
         break;                  // can't happen
     }
diff --git a/src/network/access/qnetworkaccessmanager.cpp b/src/network/access/qnetworkaccessmanager.cpp
index bf06ede..7ca5f78 100644
--- a/src/network/access/qnetworkaccessmanager.cpp
+++ b/src/network/access/qnetworkaccessmanager.cpp
@@ -148,6 +148,9 @@ static void ensureInitialized()
     \value PostOperation        send the contents of an HTML form for
     processing via HTTP POST (created with post())
 
+    \value DeleteOperation      delete contents operation (created with
+    deleteResource())
+
     \omitvalue UnknownOperation
 
     \sa QNetworkReply::operation()
@@ -555,7 +558,7 @@ QNetworkReply *QNetworkAccessManager::head(const QNetworkRequest &request)
     a new QNetworkReply object opened for reading which emits its
     QIODevice::readyRead() signal whenever new data arrives.
 
-    \sa post(), put()
+    \sa post(), put(), deleteResource()
 */
 QNetworkReply *QNetworkAccessManager::get(const QNetworkRequest &request)
 {
@@ -577,7 +580,7 @@ QNetworkReply *QNetworkAccessManager::get(const QNetworkRequest &request)
     Note: sending a POST request on protocols other than HTTP and
     HTTPS is undefined and will probably fail.
 
-    \sa get(), put()
+    \sa get(), put(), deleteResource()
 */
 QNetworkReply *QNetworkAccessManager::post(const QNetworkRequest &request, QIODevice *data)
 {
@@ -642,6 +645,18 @@ QNetworkReply *QNetworkAccessManager::put(const QNetworkRequest &request, const
 }
 
 /*!
+    This function is used to send a request to delete the resource
+    identified by the URL of \a request.
+    This feature is currently available for HTTP only, performing an HTTP DELETE request.
+
+    \sa get(), post(), put()
+*/
+QNetworkReply *QNetworkAccessManager::deleteResource(const QNetworkRequest &request)
+{
+    return d_func()->postProcess(createRequest(QNetworkAccessManager::DeleteOperation, request));
+}
+
+/*!
     Returns a new QNetworkReply object to handle the operation \a op
     and request \a req. The device \a outgoingData is always 0 for Get and
     Head requests, but is the value passed to post() and put() in
diff --git a/src/network/access/qnetworkaccessmanager.h b/src/network/access/qnetworkaccessmanager.h
index 4fe218e..79f512c 100644
--- a/src/network/access/qnetworkaccessmanager.h
+++ b/src/network/access/qnetworkaccessmanager.h
@@ -74,6 +74,7 @@ public:
         GetOperation,
         PutOperation,
         PostOperation,
+        DeleteOperation,
 
         UnknownOperation = 0
     };
@@ -100,6 +101,7 @@ public:
     QNetworkReply *post(const QNetworkRequest &request, const QByteArray &data);
     QNetworkReply *put(const QNetworkRequest &request, QIODevice *data);
     QNetworkReply *put(const QNetworkRequest &request, const QByteArray &data);
+    QNetworkReply *deleteResource(const QNetworkRequest &request);
 
 Q_SIGNALS:
 #ifndef QT_NO_NETWORKPROXY