Commit Graph

14 Commits

Author SHA1 Message Date
Dennis Oberst 9bbd8d17fc chat example: various enhancements
This patch includes:
  - Show available server ports dynamically. Qt built without SSL
    support should not show the https port.
  - Add an early note about the prerequisites for running the example so
    that users are guided from early on.
  - Use std::cout in combination with std::endl to flush the buffer.
    QtCreator doesn't print when simply using "\n".

Pick-to: 6.9 6.8
Change-Id: I4eb7f6fbc1474508af2a88a3313cf94325a63657
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
(cherry picked from commit e81b5d59ad)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
2025-07-03 18:59:04 +00:00
Alexey Edelev 252c5467de Add the hint to find the host grpc_cpp_plugin when crosscompiling
gRPC doesn't provide the smart tool lookup when crosscompiling.
So gRPC lookup is unable to find the grpc_cpp_plugin plugin when
crosscompiling examples. Use find_program to find the plugin in
host paths.

Pick-to: 6.8 6.9
Fixes: QTBUG-134647
Change-Id: I961b180b348dee4f1b2f2523be225d3003847e4c
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Dennis Oberst <dennis.oberst@qt.io>
2025-03-18 18:08:13 +01:00
Dennis Oberst c0496671be qtgrpc_chat_server: Compile certificates into the application
The previous approach was error-prone, as using TARGET_FILE_DIR
hard-coded the path to the build directory and ignored install locations
entirely.

Fix this by using a more reliable approach: embedding the certificate
strings directly into the application.

Pick-to: 6.9 6.9.0 6.8 6.8.3
Change-Id: Ifb883891fd55bb023e7f9828f9c422ea3e5d1c3e
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2025-03-13 13:11:23 +01:00
Dennis Oberst 9437a1f2bd qtgrpc chat example: fix deployment
The deployment was incomplete. Fix it by:
 * Building the dependent qtgrpc_chat_client_proto library as
a static library
 * Add the server directory path for reading credentials universally

Amends: cb35d20adb.

Fixes: QTBUG-134266
Pick-to: 6.9.0 6.9 6.8.3 6.8
Change-Id: I0666c445fbce159436c5b084ffd77d4191e04213
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2025-03-05 07:58:29 +00:00
Dennis Oberst cb35d20adb Rewrite the qtgrpc chat example
The previous chat example was created many moons ago and much has
happened since then. These are the key improvements for the new qtchat:

- Server uses the Callback API
- Added support for Registering (stored in plain text on server side)
- Use long-lived bidirectional streaming for the ChatRoom method
- Any files can now be shared in any size with all chat users
- Use the Grpc client from a dedicated worker thread to have lag-free
  UIs
- Use the generated protobuf QML-library declaratively in the app
- stylistic improvements
- Use SSL for safe communication
- Automatic reconnections

This is an advanced example showcasing many features of this module.

Pick-to: 6.9 6.8
Fixes: QTBUG-121871
Fixes: QTBUG-122625
Change-Id: I71114375fe91ffb20a235859b6ab51f7b3ab07a3
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2025-02-24 10:41:22 +01:00
Alexey Edelev b6f0fdc89a Use the upper-case Protobuf module name when looking it
This will work around the issue in debian-like platforms, where
relatively new protobuf doesn't deliver the proper config files.

The lookup still prefers looking for the config files, but not
the deprecated CMake module.

Change-Id: Ie1d5217e9023022976dd058be9dd7fd1ce37e39f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2024-12-03 16:18:57 +01:00
Alexey Edelev fa7c4410e8 Remove WrapgRPC and WrapProtobuf modules
These modules are not relevant anymore. After porting Qt::Grpc
relied on native gRPC implementation. But since we migrated to the
fully functional Qt HTTP/2 the need of reference gRPC and protobuf
gone.

Remove the WrapgRPC and WrapProtobuf modules, use the protobuf
gRPC modules directly in tests examples and tools. Since non of
those never add the build-time depdendcy on reference libraries,
we don't need to add the respective dependencies in Qt packages.

The only thing we still wrap is protoc. We either look for executable
but we never propagate it as the reference target, but utilize the
path from there.

Fixes: QTBUG-128809
Change-Id: Id5008f8dd935288cbaa8a9abb88d485824099d46
Reviewed-by: Dennis Oberst <dennis.oberst@qt.io>
2024-10-15 18:12:58 +02:00
Alexey Edelev a5d79af204 Warn if users attempt building gRPC servers using MinGW
gRPC in examples using the reference grpc++, which depends on abseil.
There is known upstream issue that abseil passes the MSVC only linker
flag that blocks the example compilation with MinGW compiler. The
problem meanwhile is bigger than that, since abseil simply don't have
a proper MinGW support, so we should warn users, that we do not
officially support MinGW in the examples that use the reference gRPC
server implementation.

Pick-to: 6.8 6.7
Fixes: QTBUG-128174
Change-Id: I319c54b5df02dac0be1dee441ec324f54f05ad93
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2024-08-23 12:34:14 +02:00
Lucie Gérard 4b21c9ef0d Correct license for example files
According to QUIP-18 [1], all example files should be
LicenseRef-Qt-Commercial OR BSD-3-Clause

[1]: https://contribute.qt-project.org/quips/18

Pick-to: 6.7
Task-number: QTBUG-121787
Change-Id: If6b8c8eb88c8880e6e277f472dfdd5b380a5c83d
Reviewed-by: Kai Köhne <kai.koehne@qt.io>
2024-03-15 14:28:25 +01:00
Dennis Oberst 5f75a40f92 chat example: fix unused string usage in server
We try to print this string but it is never assigned. Lets show
the users who registered.

Pick-to: 6.6 6.5
Change-Id: I0e384a2591aae0e39c567b1ccab694bdeddee920
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
2023-08-09 15:58:01 +00:00
Alexey Edelev 1e07202376 Revert "Disable -fPIE for the qtgrpc/qtprotobuf executables"
This reverts commit 272957831e.

Reason for revert: This can be re-enabled since we enabled PIC/PIE in provisioning.

Change-Id: I181ab2b258c0751f8379877584dac03772601240
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2023-03-09 08:32:38 +00:00
Alexey Edelev 4502bb0e76 Require c++17 for grpcchat server
The example server uses the c++17 standard but doesn't require it in
CMake. Add the missing requirement.

Amends fdd1d0339f

Pick-to: 6.5
Change-Id: I84f10ec22198cb50a8f393036382021ad5bf39e0
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Konrad Kujawa <konrad.kujawa@qt.io>
Reviewed-by: Tatiana Borisova <tatiana.borisova@qt.io>
2023-03-07 11:52:58 +01:00
Alexey Edelev 272957831e Disable -fPIE for the qtgrpc/qtprotobuf executables
If libprotobuf is not built with -fPIE enabled we cannot link it
to qtprotobufgen. Disable the flag until provisioning got the proper
update.

Do the same trick for all executables and libraries that are linked
to the libgrpc* or libproto* libraries.

TODO: Re-enable PIE once QTBUG-111485 is fixed.

Task-number: QTBUG-111485
Pick-to: 6.5
Change-Id: I8735069c0c0ab61ec5b118ee5c261f77627e3f8c
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2023-02-24 13:47:33 +01:00
Alexey Edelev fdd1d0339f Backport the simple chat example
Backport the simple chat example. The application implements a simple
messenger using Qt GRPC. It shows how to utilize the server-side
streaming and use the call-based user/password credentials.

Task-number: QTBUG-109598
Pick-to: 6.5
Change-Id: I4ca3695780a9cc9991c92c4423e3af9d8e0eaf35
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2023-02-23 18:29:39 +01:00