Add more specific HTTP error codes to QNetworkReply::NetworkError

A few more HTTP status codes from the 4xx and 5xx series have been
added to QNetworkReply::NetworkError.

For content errors, the following codes have been added:
1. 409 - Resource Conflict
2. 410 - Resource Gone

For server related errors, the following codes have been added:
1. 500 - Internal Server Error
2. 501 - Operation Not Implemented
3. 503 - Service Unavailable

Few of the above codes are quite possible when communicating with REST
based services.

NOTE:
=====
* HTTP error status 400 is interpreted as
QNetworkReply::ProtocolInvalidOperationError.
* QNetworkReply::UnknownServerError is returned for all server related
errors (5xx) not listed above.

[ChangeLog][QtNetwork][QNetworkReply] Added more (specific) HTTP status
codes to NetworkError enum.

Task-number: QTBUG-30880
Change-Id: I9d2a133f6b3869f26710c6eb930dd8b08df31108
Reviewed-by: Peter Hartmann <phartmann@blackberry.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/network/access/qnetworkreply.cpp b/src/network/access/qnetworkreply.cpp
index ba6f706f7a..faa8464463 100644
--- a/src/network/access/qnetworkreply.cpp
+++ b/src/network/access/qnetworkreply.cpp
@@ -173,6 +173,21 @@ QNetworkReplyPrivate::QNetworkReplyPrivate()
     again, but this failed for example because the upload data
     could not be read a second time.
 
+    \value ContentConflictError         the request could not be completed due
+    to a conflict with the current state of the resource.
+
+    \value ContentGoneError             the requested resource is no longer
+    available at the server.
+
+    \value InternalServerError          the server encountered an unexpected
+    condition which prevented it from fulfilling the request.
+
+    \value OperationNotImplementedError the server does not support the
+    functionality required to fulfill the request.
+
+    \value ServiceUnavailableError      the server is unable to handle the
+    request at this time.
+
     \value ProtocolUnknownError         the Network Access API cannot
     honor the request because the protocol is not known
 
@@ -191,6 +206,9 @@ QNetworkReplyPrivate::QNetworkReplyPrivate()
     \value ProtocolFailure              a breakdown in protocol was
     detected (parsing error, invalid or unexpected responses, etc.)
 
+    \value UnknownServerError           an unknown error related to
+    the server response was detected
+
     \sa error()
 */