KASM-2075 update novnc to head of master

KASM-2001 Update noVNC commit

.ci/upload.sh

@@ -1,16 +1,33 @@
 #!/bin/bash
 
+is_kasmvnc() {
+  local package="$1";
+
+  echo "$package" | grep -q 'kasmvncserver_'
+}
+
 function prepare_upload_filename() {
   local package="$1";
 
+  if ! is_kasmvnc "$package"; then
+    export upload_filename="$package"
+    return
+  fi
+
   .ci/detect_os_arch_package_format "$package" > /tmp/os_arch_package_format;
   source /tmp/os_arch_package_format;
   detect_release_branch
+
+  detect_revision "$package" "$OS_ARCH"
+  if [ -n "$REVISION" ]; then
+    REVISION="_${REVISION}"
+  fi
+
   if [ -n "$RELEASE_BRANCH" ]; then
-    export upload_filename="kasmvncserver_${PACKAGE_OS}_${RELEASE_VERSION}_${OS_ARCH}.${PACKAGE_FORMAT}";
+    export upload_filename="kasmvncserver_${PACKAGE_OS}_${RELEASE_VERSION}${REVISION}_${OS_ARCH}.${PACKAGE_FORMAT}";
   else
     export SANITIZED_BRANCH="$(echo $CI_COMMIT_REF_NAME | sed 's/\//_/g')";
-    export upload_filename="kasmvncserver_${PACKAGE_OS}_${RELEASE_VERSION}_${SANITIZED_BRANCH}_${CI_COMMIT_SHA:0:6}_${OS_ARCH}.${PACKAGE_FORMAT}";
+    export upload_filename="kasmvncserver_${PACKAGE_OS}_${RELEASE_VERSION}_${SANITIZED_BRANCH}_${CI_COMMIT_SHA:0:6}${REVISION}_${OS_ARCH}.${PACKAGE_FORMAT}";
   fi
 };
 
@@ -25,6 +42,7 @@ function upload_to_s3() {
   export BUILD_STATUS="{\"key\":\"doc\", \"state\":\"SUCCESSFUL\", \"name\":\"${upload_filename}\", \"url\":\"${S3_URL}\"}";
   curl --request POST --header "PRIVATE-TOKEN:${GITLAB_API_TOKEN}" "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/statuses/${CI_COMMIT_SHA}?state=success&name=build-url&target_url=${S3_URL}";
 };
+
 function prepare_to_run_scripts_and_s3_uploads() {
   export DEBIAN_FRONTEND=noninteractive;
   apt-get update;
@@ -38,3 +56,16 @@ detect_release_branch() {
     export RELEASE_BRANCH=1;
   fi
 }
+
+detect_revision() {
+  local package="$1"
+  local arch="$2"
+
+  REVISION=
+
+  if ! echo "$package" | grep -q '+'; then
+    return
+  fi
+
+  REVISION=$(echo "$package" | sed "s/_${arch}.\+//" | sed 's/.\++//')
+}

.dockerignore

@@ -1 +0,0 @@
-builder/build

.gitlab-ci.yml

@@ -4,27 +4,49 @@ services:
 
 variables:
   GITLAB_SHARED_DIND_DIR: /builds/$CI_PROJECT_PATH/shared
+  GIT_SUBMODULE_STRATEGY: normal
   GIT_FETCH_EXTRA_FLAGS: --tags
 
 stages:
+  - www
   - build
   - upload
 
 .prepare_build: &prepare_build
-  - ls -l
   - pwd
   - apk add bash
   - mkdir -p "$GITLAB_SHARED_DIND_DIR" && chmod 777 "$GITLAB_SHARED_DIND_DIR"
 
+.prepare_www: &prepare_www
+  - tar -zxf output/www/kasm_www.tar.gz -C builder/
+
 .prepare_artfacts: &prepare_artfacts
-  - mkdir output
   - cp -r builder/build/* output/
   - rm output/*.tar.gz
 
-build_ubuntu_bionic:
+build_www:
-  stage: build
+  stage: www
+  allow_failure: false
   before_script:
     - *prepare_build
+  script:
+    - webpacked_www=$PWD/builder/www
+    - src_www=kasmweb
+    - docker build -t kasmweb/www -f builder/dockerfile.www.build .
+    - docker run --rm -v $PWD/builder/www:/build kasmweb/www:latest
+    - mkdir -p output/www
+    - cd builder
+    - tar -zcvf ../output/www/kasm_www.tar.gz www
+  artifacts:
+    paths:
+      - output/
+
+build_ubuntu_bionic:
+  stage: build
+  allow_failure: true
+  before_script:
+    - *prepare_build
+    - *prepare_www
   after_script:
     - *prepare_artfacts
   script:
@@ -33,46 +55,150 @@ build_ubuntu_bionic:
     paths:
       - output/
 
-build_ubuntu_focal:
+build_ubuntu_bionic_arm:
   stage: build
+  allow_failure: false
+  tags:
+    - arm
   before_script:
     - *prepare_build
+    - *prepare_www
+  after_script:
+    - *prepare_artfacts
+  script:
+    - bash builder/build-package ubuntu bionic
+  artifacts:
+    paths:
+      - output/
+
+build_ubuntu_bionic_libjpeg_turbo:
+  stage: build
+  allow_failure: false
+  before_script:
+    - *prepare_build
+    - *prepare_www
+  after_script:
+    - *prepare_artfacts
+  script:
+    - bash builder/build-package ubuntu bionic +libjpeg-turbo_latest
+  artifacts:
+    paths:
+      - output/
+
+build_ubuntu_focal:
+  stage: build
+  allow_failure: true
+  before_script:
+    - *prepare_build
+    - *prepare_www
   after_script:
     - *prepare_artfacts
   script:
     - bash builder/build-package ubuntu focal;
+  only:
+    variables:
+      - $CI_COMMIT_MESSAGE =~ /\[full [Cc][Ii]\]/
+  artifacts:
+    paths:
+      - output/
+
+build_ubuntu_focal_arm:
+  stage: build
+  allow_failure: true
+  tags:
+    - arm
+  before_script:
+    - *prepare_build
+    - *prepare_www
+  after_script:
+    - *prepare_artfacts
+  script:
+    - bash builder/build-package ubuntu focal;
+  only:
+    variables:
+      - $CI_COMMIT_MESSAGE =~ /\[full [Cc][Ii]\]/
   artifacts:
     paths:
       - output/
 
 build_debian_buster:
   stage: build
+  allow_failure: true
   before_script:
     - *prepare_build
+    - *prepare_www
   after_script:
     - *prepare_artfacts
   script:
     - bash builder/build-package debian buster;
+  only:
+    variables:
+      - $CI_COMMIT_MESSAGE =~ /\[full [cC][Ii]\]/
+  artifacts:
+    paths:
+      - output/
+
+build_debian_buster_arm:
+  stage: build
+  allow_failure: true
+  tags:
+    - arm
+  before_script:
+    - *prepare_build
+    - *prepare_www
+  after_script:
+    - *prepare_artfacts
+  script:
+    - bash builder/build-package debian buster;
+  only:
+    variables:
+      - $CI_COMMIT_MESSAGE =~ /\[full [cC][Ii]\]/
   artifacts:
     paths:
       - output/
 
 build_debian_bullseye:
   stage: build
+  allow_failure: true
   before_script:
     - *prepare_build
+    - *prepare_www
   after_script:
     - *prepare_artfacts
   script:
     - bash builder/build-package debian bullseye;
+  only:
+    variables:
+      - $CI_COMMIT_MESSAGE =~ /\[full [cC][Ii]\]/
+  artifacts:
+    paths:
+      - output/
+
+build_debian_bullseye_arm:
+  stage: build
+  allow_failure: true
+  tags:
+    - arm
+  before_script:
+    - *prepare_build
+    - *prepare_www
+  after_script:
+    - *prepare_artfacts
+  script:
+    - bash builder/build-package debian bullseye;
+  only:
+    variables:
+      - $CI_COMMIT_MESSAGE =~ /\[full [cC][Ii]\]/
   artifacts:
     paths:
       - output/
 
 build_kali_rolling:
   stage: build
+  allow_failure: true
   before_script:
     - *prepare_build
+    - *prepare_www
   after_script:
     - *prepare_artfacts
   script:
@@ -83,8 +209,10 @@ build_kali_rolling:
 
 build_centos7:
   stage: build
+  allow_failure: true
   before_script:
     - *prepare_build
+    - *prepare_www
   after_script:
     - *prepare_artfacts
   script:
@@ -102,9 +230,11 @@ upload:
     - export S3_BUILD_DIRECTORY="kasmvnc/${CI_COMMIT_SHA}"
     - prepare_to_run_scripts_and_s3_uploads
     - export RELEASE_VERSION=$(.ci/next_release_version "$CI_COMMIT_REF_NAME")
-    - for package in `find output/ -type f -name 'kasmvncserver_*.deb' -or -name '*.rpm'`; do
+    - for package in `find output/ -type f -name '*.deb' -or -name '*.rpm'`; do
         prepare_upload_filename "$package";
         echo;
         echo "File to upload $upload_filename";
         upload_to_s3 "$package" "$upload_filename";
+        UPLOAD_NAME=$(echo $upload_filename | sed 's#kasmvncserver_##' | sed -r 's#_([0-9]{1,3}\.){2}[0-9]{1,2}_\S+?([a-f0-9]{6})##' | sed -r 's#\.(deb|rpm)##');
+        curl --request POST --header "PRIVATE-TOKEN:${GITLAB_API_TOKEN}" "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/statuses/${CI_COMMIT_SHA}?state=success&name=${UPLOAD_NAME}&target_url=${S3_URL}";
       done

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "kasmweb"]
+	path = kasmweb
+	url = https://github.com/kasmtech/noVNC.git
+	branch = master

ACKNOWLEDGEMENTS.md

@@ -20,7 +20,7 @@ Incomplete and generally out of date copyright list::
         All Rights Reserved.
 
 This software is distributed under the GNU General Public Licence as published
-by the Free Software Foundation.  See the file LICENCE.TXT for the conditions
+by the Free Software Foundation.  See the file LICENSE.TXT for the conditions
 under which this software is made available.  KasmVNC also contains code from
 other sources.  See the Acknowledgements section below, and the individual
 source files, for details of the conditions under which they are made
@@ -105,4 +105,4 @@ This distribution contains software from the X Window System.  This is:
  ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- SOFTWARE.
+ SOFTWARE.

CMakeLists.txt

@@ -16,6 +16,7 @@ include(CheckLibraryExists)
 include(CheckTypeSize)
 include(CheckCSourceCompiles)
 include(CheckCXXSourceCompiles)
+include(CheckCXXCompilerFlag)
 include(CheckCSourceRuns)
 
 include(CMakeMacroLibtoolFile)
@@ -208,6 +209,9 @@ if(ENABLE_PAM)
 endif()
 set(HAVE_PAM ${ENABLE_PAM})
 
+# Check for SSE2
+check_cxx_compiler_flag(-msse2 COMPILER_SUPPORTS_SSE2)
+
 # Generate config.h and make sure the source finds it
 configure_file(config.h.in config.h)
 add_definitions(-DHAVE_CONFIG_H)

README.md

@@ -1,11 +1,11 @@
 # KasmVNC - Linux Web Remote Desktop
 
-[![Kasm Technologies](https://kasm-static-content.s3.amazonaws.com/368_kasm_logo_.jpg "Kasm Logo")](https://kasmweb.com)
+<a href="https://kasmweb.com"><img src="https://kasm-static-content.s3.amazonaws.com/logo_kasm.png" width="300"><a/>
-
+  
-[Kasm Technologies LLC](https://www.kasmweb.com) developed Kasm Server, a Containerized Desktop Infrastructure (CDI) solution. Kasm started with TigerVNC and eventually forked it to create KasmVNC. KasmVNC is used within the overal Kasm CDI infrastructure, however, you can use KasmVNC for individual servers. KasmVNC has different goals than TigerVNC:
+[Kasm Technologies](https://www.kasmweb.com) developed Kasm Workspaces, the Containerized Streaming Platform. Kasm has open-sourced the Workspace docker images, which include containerized [full desktops and apps](https://github.com/kasmtech/workspaces-images) and [base images](https://github.com/kasmtech/workspaces-core-images) intended for developers to create custimized streaming containers. These containers can be used standalone or within the [Kasm Workspaces Platform](https://www.kasmweb.com) which provides a full Enterprise feature set. KasmVNC is used as the streaming tech for our container images, however, you can use KasmVNC for individual servers. While the term VNC is in the name, KasmVNC is not intended to remain compliant with the RFB spec and has different goals than other VNC projects:
 
   - Web-based - KasmVNC is designed to provide a web accessible remote desktop. It comes with a web server and websocket server built in. There is no need to install other components. Simply run and navigate to your desktop's URL on the port you specify. While you can still tun on the legacy VNC port, it is disabled by default.
-  - Security - KasmVNC defaults to HTTPS and allows for HTTP Basic Auth. VNC Password authentication is limited by specification to 8 characters and is not suffecient for use on an internet accessible remote desktop. Our goal is to create a by default secure, web based experience.
+  - Security - The RFB specification (VNC) limits the password field to 8 characters, so while the client may take a longer password, only the first 8 characters are sent. KasmVNC defaults to HTTPS with HTTP Basic Auth and disables the legacy VNC authentication method which is not sufficiently secure for internet accessible systems.
   - Simplicity - KasmVNC aims at being simple to deploy and configure.
 
 # New Features!
@@ -42,9 +42,9 @@ Future Goals:
 #### Debian-based
 
 ```sh
-wget -qO- https://github.com/kasmtech/KasmVNC/releases/download/v0.9.1-beta/kasmvncserver_0.9.1~beta-1_amd64.deb
+wget https://github.com/kasmtech/KasmVNC/releases/download/v0.9.2-beta/kasmvncserver_ubuntu_bionic_0.9.2_amd64.deb
 
-sudo dpkg -i kasmvncserver_0.9.1~beta-1_amd64.deb
+sudo dpkg -i kasmvncserver_*.deb
 sudo apt-get -f install
 
 # We provide an example script to run KasmVNC at #
@@ -91,14 +91,16 @@ The options for vncserver:
 | interface | Which interface to bind the web server to. |
 
 ### Development
-Would you like to contribute to KasmVNC? Please reachout to us at info@kasmweb.com
+Would you like to contribute to KasmVNC? Please reachout to us at info@kasmweb.com. We have investigated or are working on the following, if you have experience in these fields and would like to help please let us know.
 
-We need help, especially in packaging KasmVNC for various operating systems. We would love to have standard debian or RMP packages and host our own repo, however, that all requires a lot of experience, proper testing, and pipeline development for automated builds.
+Real-time H264 encoding using NVIDIA and Intel encoding technology.
 
-We also need help with Windows, which is not currently supported. While KasmVNC can technically be built for Windows 10, it is unusably slow, due to all the changes that occured in Windows since the original Windows support was added in the chain of VNC forked projects.
+Windows version of KasmVNC. We have been able to get it to compile for Windows and increased the performance, but still not releasable. Experienced Windows developers with a background in cross compiling would help.
+  
+ARM version of KasmVNC, we have had requests for this and at one point we did have an ARM build of KasmVNC but it takes dev cycles to mainain and bring it back to life.
 
 ### Compiling From Source
 See the [builder/README.md](https://github.com/kasmtech/KasmVNC/blob/master/builder/README.md). We containerize our build systems to ensure highly repeatable builds.
 
 ### License and Acknowledgements
-See the [LICENSE.TXT](https://github.com/kasmtech/KasmVNC/blob/master/LICENCE.TXT) and [ACKNOWLEDGEMENTS.MD](https://github.com/kasmtech/KasmVNC/blob/master/LICENSE.TXT)
+See the [LICENSE.TXT](https://github.com/kasmtech/KasmVNC/blob/master/LICENSE.TXT) and [ACKNOWLEDGEMENTS.MD](https://github.com/kasmtech/KasmVNC/blob/master/LICENSE.TXT)

builder/README.md

@@ -3,8 +3,17 @@ Docker CE
 
 # Build a deb/rpm package
 ```
-# builder/build-package <os> <os_codename>
+# builder/build-package <os> <os_codename> <build_tag>
 # os_codename is what "lsb_release -c" outputs, e.g. buster, focal.
+#
+# build_tag allows building multiple versions of deb package (rpm not supported)
+# targeting a single distro release (e.g. Ubuntu Bionic). If build_tag is given,
+# the package name will include build_tag as part of Debian revision. For
+# example:
+# * with build_tag: kasmvncserver_0.9.1~beta-1+libjpeg-turbo-latest_amd64.deb
+# * without build_tag: kasmvncserver_0.9.1~beta-1_amd64.deb
+# You need to have .build and .deb.build for the build_tag.
+#
 # Packages will be placed under builder/build/
 
 builder/build-package ubuntu bionic
@@ -70,3 +79,63 @@ packages installed with XFCE.
 ```
 builder/test-deb-barebones ubuntu focal
 ```
+
+# Preparing a release
+
+Deb and rpm packages need their versions bumped to the new release version. It
+can be done with:
+
+```
+builder/bump-package-version 0.9.4-beta
+```
+
+This will update corresponding package files, use `git diff` to see changes.
+
+If you've ran the command and curious about Debian version specifics, here's an
+explanation:
+Deb version will be `0.9.4~beta-1`. `~` (and not `-`) is required by packaging
+guidelines, and `-1` is Debian package revision for `0.9.4` upstream release. If
+a Debian-specific patch was later added on top of `0.9.4`, it'd be `-2` for the
+next Debian version. Rpm has a corresponding revision in its .spec file.
+
+# CI development
+
+S3 upload code is extracted to various files in `.ci`. It's possible to iterate
+locally by doing stuff like this:
+
+```
+bash -c '
+. .ci/upload.sh;
+prepare_upload_filename "bionic/kasmvncserver_0.9.1~beta-1+libjpeg-turbo-latest_amd64.deb";
+echo $upload_filename;'
+```
+
+# ARM
+
+KasmVNC is supported on ARM, however, the build process needs to be broken into two parts with one occuring on a x64 system and the other on an ARM system. All our testing and official builds are done on AWS Graviton instances.
+
+### Build www code on x86 System
+The www code is webpacked for performance and thus requires building. There are NPM packages, phantomjs, which do not have an ARM build. Therefore, this must be built on x86 and then copied over to the ARM system for final packaging.
+
+```
+cd ~/KasmVNC
+mkdir builder/www
+sudo docker build -t kasmweb/www -f builder/dockerfile.www.build .
+sudo docker run --rm -v $PWD/builder/www:/build kasmweb/www:latest
+cd builder
+tar -zcvf /tmp/kasm_www.tar.gz www
+```
+
+Now transfer ```kasm_www.tar.gz``` to the ARM system.
+
+### Build KasmVNC ARM
+These instructions assume KasmVNC has been cloned at $HOME and ```kasm_www.tar.gz``` has been placed at $HOME as well, adjust for your environment.
+
+```
+cd ~
+tar -zxf kasm_www.tar.gz -C KasmVNC/builder/
+cd KasmVNC
+sudo builder/build-package ubuntu bionic
+```
+The resulting deb package can be found under ~/KasmVNC/builder/build/bionic
+Replace ```bionic``` with ```focal``` to build for Ubuntu 20.04LTS. At this time, only Ubuntu Bionic has been tested, however, other Debian based builds we support should also work.

builder/build-deb

@@ -5,12 +5,17 @@ set -e
 cd "$(dirname "$0")/.."
 . builder/os_ver_cli.sh
 
-docker build -t debbuilder_${os}:${os_codename} -f \
-  builder/dockerfile.${os}_${os_codename}.deb.build .
-
-deb_output_dir=$(cd .. && echo $PWD)
 L_UID=$(id -u) #Ubuntu already has UID env var, but this should work on all Linix systems
 L_GID=$(id -g)
-docker run --rm -v "$deb_output_dir":/src --user $L_UID:$L_GID \
+
-  debbuilder_${os}:${os_codename} /bin/bash -c \
+builder_image=debbuilder_${os}:${os_codename}${build_tag_for_images}
+docker build --build-arg KASMVNC_PACKAGE_DIR="builder/build/${os_codename}" \
+  --build-arg L_UID="$L_UID" \
+  -t "$builder_image" -f \
+  builder/dockerfile.${os}_${os_codename}${build_tag}.deb.build .
+
+deb_output_dir=$(cd .. && echo $PWD)
+docker run --rm -v "$deb_output_dir":/src -e BUILD_TAG="$build_tag" \
+  --user "$L_UID:$L_GID" \
+  "$builder_image" /bin/bash -c \
   '/src/*/builder/build-deb-inside-docker'

builder/build-deb-inside-docker

@@ -2,12 +2,31 @@
 
 set -e
 
-cd "$(dirname "$0")/.."
+prepare_docker_copy_of_debian_dir_and_cd_to_id() {
+   cd "$(dirname "$0")/.."
+
+   local mounted_src_dir="$PWD"
+   local docker_src_dir="$HOME/src"
+
+   mkdir "$docker_src_dir"
+   cd "$docker_src_dir"
+   cp -a "$mounted_src_dir/debian/" .
+   ln -s "$mounted_src_dir/builder" .
+}
+
+prepare_docker_copy_of_debian_dir_and_cd_to_id
 
 os=$(lsb_release -is | tr '[:upper:]' '[:lower:]')
 os_codename=$(lsb_release -cs)
 os_dir="builder/build/${os_codename}"
 
+if [ "$BUILD_TAG" = "+libjpeg-turbo_latest" ]; then
+   echo 'libjpeg 62 libjpeg-turbo (>= 2.1.1)' > debian/shlibs.local
+
+   debian_revision="$(echo $BUILD_TAG | tr _ -)"
+   sed -i -e "1 s/)/$debian_revision)/" debian/changelog
+fi
+
 dpkg-buildpackage -us -uc -b
 mkdir -p "$os_dir"
 cp ../*.deb "$os_dir"

builder/build-package

@@ -4,6 +4,7 @@ set -e
 
 os="$1"
 codename="$2"
+build_tag="$3"
 
 detect_package_format() {
   package_format=rpm
@@ -12,8 +13,17 @@ detect_package_format() {
   fi
 }
 
+warn_build_tag_not_supported_for_rpm_and_exit() {
+  if [[ "$build_tag" && "$package_format" = "rpm" ]]; then
+    echo >&2 "<build_tag> isn't supported for rpm"
+    exit 1
+  fi
+}
+
 cd "$(dirname "$0")/.."
 
 detect_package_format
-builder/build-tarball "$os" "$codename"
+warn_build_tag_not_supported_for_rpm_and_exit
-builder/build-${package_format} "$os" "$codename"
+
+builder/build-tarball "$os" "$codename" "$build_tag"
+builder/build-${package_format} "$os" "$codename" "$build_tag"

builder/build-rpm

@@ -2,8 +2,18 @@
 
 set -e
 
+warn_build_tag_not_supported_for_rpm_and_exit() {
+  local build_tag="$1"
+
+  if [[ -n "$build_tag" ]]; then
+    echo >&2 "<build_tag> isn't supported for rpm"
+    exit 1
+  fi
+}
+
 cd "$(dirname "$0")/.."
 . builder/os_ver_cli.sh
+warn_build_tag_not_supported_for_rpm_and_exit "$build_tag"
 
 docker build -t kasmvnc_rpmbuilder_${os}:${os_codename} -f \
   builder/dockerfile.${os}_${os_codename}.rpm.build .

builder/build-tarball

@@ -12,6 +12,13 @@ build_www_dir() {
   fi
 }
 
+move_libjpeg_turbo_to_os_specific_dir() {
+  chown $L_UID:$L_GID $shared_with_docker_dir/${os_codename}/*
+  mkdir -p $PWD/builder/build/${os_codename}/
+  mv $shared_with_docker_dir/${os_codename}/libjpeg-turbo*.deb \
+    $PWD/builder/build/${os_codename}/
+}
+
 shared_with_docker_dir=${GITLAB_SHARED_DIND_DIR:-/tmp}
 
 cd "$(dirname "$0")/.."
@@ -19,13 +26,21 @@ cd "$(dirname "$0")/.."
 
 build_www_dir
 
-docker build -t kasmvncbuilder:$os_codename \
+builder_image=kasmvncbuilder:$os_codename${build_tag_for_images}
-  -f builder/dockerfile.${os}_${os_codename}.build .
+docker build -t "$builder_image" \
+  -f builder/dockerfile.${os}_${os_codename}${build_tag}.build .
 mkdir -p builder/build
-docker run -v $shared_with_docker_dir:/build --rm kasmvncbuilder:$os_codename
+docker run -v $shared_with_docker_dir:/build -e BUILD_TAG="$build_tag" \
+  --rm "$builder_image"
 
 L_GID=$(id -g)
 L_UID=$(id -u)
 tarball_name="kasmvnc.${os}_${os_codename}.tar.gz"
+tarball_name_with_build_tag="kasmvnc.${os}_${os_codename}${build_tag}.tar.gz"
 chown $L_UID:$L_GID $shared_with_docker_dir/$tarball_name
-mv $shared_with_docker_dir/$tarball_name $PWD/builder/build/
+mv $shared_with_docker_dir/$tarball_name \
+  $PWD/builder/build/"$tarball_name_with_build_tag"
+
+if [ "$build_tag" = "+libjpeg-turbo_latest" ]; then
+  move_libjpeg_turbo_to_os_specific_dir
+fi

builder/build.sh

@@ -30,16 +30,19 @@ sed -i -e '/find_package(FLTK/s@^@#@' \
 	-e '/add_subdirectory(tests/s@^@#@' \
 	CMakeLists.txt
 
-cmake -D CMAKE_BUILD_TYPE=RelWithDebInfo .
+cmake -D CMAKE_BUILD_TYPE=RelWithDebInfo . -DBUILD_VIEWER:BOOL=OFF
 make -j5
 
-tar -C unix/xserver -xvf /tmp/xorg-server-${XORG_VER}.tar.bz2 --strip-components=1
+tar -C unix/xserver -xf /tmp/xorg-server-${XORG_VER}.tar.bz2 --strip-components=1
 
 cd unix/xserver
 patch -Np1 -i ../xserver${XORG_PATCH}.patch
-if [[ $XORG_VER =~ ^1\.20\..*$ ]]; then
+case "$XORG_VER" in
-  patch -Np1 -i ../xserver120.7.patch
+  1.20.*) 
-fi
+      if [ -f ../xserver120.7.patch ]; then
+        patch -Np1 -i ../xserver120.7.patch
+      fi ;;
+esac
 
 autoreconf -i
 # Configuring Xorg is long and has many distro-specific paths.
@@ -72,6 +75,8 @@ mkdir lib
 cd lib
 if [ -d /usr/lib/x86_64-linux-gnu/dri ]; then
   ln -s /usr/lib/x86_64-linux-gnu/dri dri
+elif [ -d /usr/lib/aarch64-linux-gnu/dri ]; then
+  ln -s /usr/lib/aarch64-linux-gnu/dri dri
 else
   ln -s /usr/lib64/dri dri
 fi
@@ -84,3 +89,7 @@ fi
 make servertarball
 
 cp kasmvnc*.tar.gz /build/kasmvnc.${KASMVNC_BUILD_OS}_${KASMVNC_BUILD_OS_CODENAME}.tar.gz
+if [ "$BUILD_TAG" = "+libjpeg-turbo_latest" ]; then
+	mkdir -p /build/${KASMVNC_BUILD_OS_CODENAME}/
+	cp /libjpeg-turbo/libjpeg*.deb /build/${KASMVNC_BUILD_OS_CODENAME}/
+fi

builder/build_www.sh

@@ -14,6 +14,5 @@ cp -R ./* /build/
 cd /build
 rm *.md
 rm AUTHORS
-rm *.yml
 rm vnc.html
 rm vnc_lite.html

builder/bump-package-version

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+set -eo pipefail
+
+update_version_to_meet_packaging_standards() {
+  new_version=$(echo "$new_version" |
+    sed -e 's/\([0-9]\)-\([a-zA-Z]\)/\1~\2/')
+}
+
+add_debian_revision_to_new_version() {
+  echo "$new_version-1"
+}
+
+bump_rpm() {
+  sed -i "s/^Version:.\+/Version:        $new_version/" centos/kasmvncserver.spec
+}
+
+bump_deb() {
+  local image="debbump_package_version:dev"
+  local L_UID=$(id -u)
+  local L_GID=$(id -g)
+  local debian_version=$(add_debian_revision_to_new_version)
+
+  docker build -t "$image" -f builder/dockerfile.bump-package-version .
+  docker run --rm -v "$PWD":/src --user "$L_UID:$L_GID" \
+    "$image" /bin/bash -c \
+    "cd /src && builder/bump-package-version-inside-docker-deb $debian_version"
+}
+
+new_version="$1"
+
+if [[ -z "$new_version" ]]; then
+  echo >&2 "Usage: $(basename "$0") <new_version>"
+  exit 1
+fi
+
+cd "$(dirname "$0")/.."
+
+update_version_to_meet_packaging_standards
+bump_rpm
+bump_deb

builder/bump-package-version-inside-docker-deb

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+new_version="$1"
+
+update_version() {
+  dch --newversion $new_version 'New upstream release.'
+}
+
+mark_as_released() {
+  dch --release ""
+}
+
+update_version
+mark_as_released

builder/dockerfile.bump-package-version

@@ -0,0 +1,6 @@
+FROM debian:buster
+
+ENV DEBEMAIL="Kasm Technologies LLC <info@kasmweb.com>"
+
+RUN apt-get update && \
+      apt-get -y install vim devscripts

builder/dockerfile.centos_core.build

@@ -3,6 +3,7 @@ FROM centos:centos7
 ENV KASMVNC_BUILD_OS centos
 ENV KASMVNC_BUILD_OS_CODENAME core
 
+RUN yum update -y ca-certificates
 RUN yum install -y build-dep xorg-server libxfont-dev sudo
 RUN yum install -y gcc cmake git libjpeg-dev libgnutls28-dev vim wget tightvncserver
 RUN yum install -y libjpeg-dev libpng-dev libtiff-dev libgif-dev libavcodec-dev openssl-devel
@@ -15,15 +16,14 @@ RUN yum install -y mesa-dri-drivers
 
 # Additions for webp
 RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
-RUN cd /tmp && tar -xzvf /tmp/libwebp-*
+RUN cd /tmp && tar -xzf /tmp/libwebp-*
 RUN cd /tmp/libwebp-1.0.2 && \
     ./configure --enable-static --disable-shared && \
     make && make install
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd
 
-COPY . /src
+COPY --chown=docker:docker . /src/
-RUN chown -R docker:docker /src
 
 USER docker
 ENTRYPOINT ["/src/builder/build.sh"]

builder/dockerfile.debian_bullseye.build

@@ -17,15 +17,14 @@ RUN apt-get update && apt-get -y install libjpeg-dev libpng-dev libtiff-dev libg
 
 # Additions for webp
 RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
-RUN cd /tmp && tar -xzvf /tmp/libwebp-*
+RUN cd /tmp && tar -xzf /tmp/libwebp-*
 RUN cd /tmp/libwebp-1.0.2 && \
     ./configure --enable-static --disable-shared && \
     make && make install
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
 
-COPY . /src
+COPY --chown=docker:docker . /src/
-RUN chown -R docker:docker /src
 
 USER docker
 ENTRYPOINT ["/src/builder/build.sh"]

builder/dockerfile.debian_bullseye.deb.build

@@ -9,4 +9,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker

builder/dockerfile.debian_bullseye.deb.test

@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 ### END CUSTOM STUFF ###
 

builder/dockerfile.debian_buster.barebones.deb.test

@@ -1,8 +1,8 @@
 FROM debian:buster-slim
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
-RUN apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
+RUN rm -f /tmp/kasmvncserver_*+*.deb; apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
 RUN apt-get update && apt-get -y install xterm
 
 COPY startup/deb/kasmvncserver-easy-start /usr/local/bin

builder/dockerfile.debian_buster.build

@@ -17,15 +17,14 @@ RUN apt-get update && apt-get -y install libjpeg-dev libpng-dev libtiff-dev libg
 
 # Additions for webp
 RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
-RUN cd /tmp && tar -xzvf /tmp/libwebp-*
+RUN cd /tmp && tar -xzf /tmp/libwebp-*
 RUN cd /tmp/libwebp-1.0.2 && \
     ./configure --enable-static --disable-shared && \
     make && make install
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
 
-COPY . /src
+COPY --chown=docker:docker . /src/
-RUN chown -R docker:docker /src
 
 USER docker
 ENTRYPOINT ["/src/builder/build.sh"]

builder/dockerfile.debian_buster.deb.build

@@ -9,4 +9,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker

builder/dockerfile.debian_buster.deb.test

@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 ### END CUSTOM STUFF ###
 

builder/dockerfile.fedora_thirtythree.build

@@ -24,15 +24,14 @@ RUN dnf install -y bzip2 redhat-lsb-core
 
 # Additions for webp
 RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
-RUN cd /tmp && tar -xzvf /tmp/libwebp-*
+RUN cd /tmp && tar -xzf /tmp/libwebp-*
 RUN cd /tmp/libwebp-1.0.2 && \
     ./configure --enable-static --disable-shared && \
     make && make install
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd
 
-COPY . /src
+COPY --chown=docker:docker . /src/
-RUN chown -R docker:docker /src
 
 USER docker
 ENTRYPOINT ["/src/builder/build.sh"]

builder/dockerfile.kali_kali-rolling.build

@@ -17,15 +17,14 @@ RUN apt-get update && apt-get -y install libjpeg-dev libpng-dev libtiff-dev libg
 
 # Additions for webp
 RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
-RUN cd /tmp && tar -xzvf /tmp/libwebp-*
+RUN cd /tmp && tar -xzf /tmp/libwebp-*
 RUN cd /tmp/libwebp-1.0.2 && \
     ./configure --enable-static --disable-shared && \
     make && make install
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
 
-COPY . /src
+COPY --chown=docker:docker . /src/
-RUN chown -R docker:docker /src
 
 USER docker
 ENTRYPOINT ["/src/builder/build.sh"]

builder/dockerfile.kali_kali-rolling.deb.build

@@ -9,4 +9,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker

builder/dockerfile.kali_kali-rolling.deb.test

@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 ### END CUSTOM STUFF ###
 

builder/dockerfile.ubuntu1604.build

@@ -14,8 +14,7 @@ RUN cd /tmp/libwebp-1.0.2 && ./configure && make && make install
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
 
-COPY . /src
+COPY --chown=docker:docker . /src/
-RUN chown -R docker:docker /src
 
 
 USER docker

builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.build

@@ -0,0 +1,39 @@
+FROM ubuntu:18.04
+
+ENV KASMVNC_BUILD_OS ubuntu
+ENV KASMVNC_BUILD_OS_CODENAME bionic
+ENV XORG_VER 1.20.10
+
+RUN sed -i 's$# deb-src$deb-src$' /etc/apt/sources.list
+
+RUN apt-get update && \
+      apt-get -y install sudo
+
+RUN apt-get update && apt-get -y build-dep xorg-server libxfont-dev
+RUN apt-get update && apt-get -y install cmake git libgnutls28-dev vim wget tightvncserver
+RUN apt-get update && apt-get -y install libpng-dev libtiff-dev libgif-dev libavcodec-dev libssl-dev
+
+RUN apt-get update && apt-get install -y cmake nasm gcc
+RUN git clone https://github.com/libjpeg-turbo/libjpeg-turbo.git
+RUN export MAKEFLAGS=-j`nproc`; cd libjpeg-turbo && cmake -G"Unix Makefiles" && make deb
+RUN export MAKEFLAGS=-j`nproc`; cd libjpeg-turbo && cmake -DCMAKE_INSTALL_PREFIX=/usr/local -G"Unix Makefiles" && make && make install
+
+# Additions for webp
+RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
+RUN cd /tmp && tar -xzf /tmp/libwebp-*
+RUN cd /tmp/libwebp-1.0.2 && \
+    ./configure --enable-static --disable-shared && \
+    make && make install
+
+# Fix for older required libs
+#RUN cd /tmp && wget http://launchpadlibrarian.net/347526424/libxfont1-dev_1.5.2-4ubuntu2_amd64.deb && \
+#    wget http://launchpadlibrarian.net/347526425/libxfont1_1.5.2-4ubuntu2_amd64.deb && \
+#    dpkg -i libxfont1_1.5.2-4ubuntu2_amd64.deb && \
+#    dpkg -i libxfont1-dev_1.5.2-4ubuntu2_amd64.deb
+
+RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
+
+COPY --chown=docker:docker . /src
+
+USER docker
+ENTRYPOINT ["/src/builder/build.sh"]

builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.deb.build

@@ -0,0 +1,23 @@
+FROM ubuntu:bionic
+
+RUN apt-get update && \
+      apt-get -y install vim build-essential devscripts equivs
+
+ARG KASMVNC_PACKAGE_DIR
+COPY $KASMVNC_PACKAGE_DIR/libjpeg-turbo*deb /tmp
+RUN apt-get install /tmp/libjpeg-turbo*deb
+
+# Install build-deps for the package.
+COPY ./debian/control /tmp
+RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
+
+ENV LD_LIBRARY_PATH="/opt/libjpeg-turbo/lib64/:$LD_LIBRARY_PATH"
+
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker

builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.deb.test

@@ -0,0 +1,58 @@
+FROM ubuntu:bionic
+
+ENV DISPLAY=:1 \
+    VNC_PORT=8443 \
+    VNC_RESOLUTION=1280x720 \
+    MAX_FRAME_RATE=24 \
+    VNCOPTIONS="-PreferBandwidth -DynamicQualityMin=4 -DynamicQualityMax=7" \
+    HOME=/home/user \
+    TERM=xterm \
+    STARTUPDIR=/dockerstartup \
+    INST_SCRIPTS=/dockerstartup/install \
+    KASM_RX_HOME=/dockerstartup/kasmrx \
+    DEBIAN_FRONTEND=noninteractive \
+    VNC_COL_DEPTH=24 \
+    VNC_RESOLUTION=1280x1024 \
+    VNC_PW=vncpassword \
+    VNC_USER=user \
+    VNC_VIEW_ONLY_PW=vncviewonlypassword \
+    LD_LIBRARY_PATH=/opt/libjpeg-turbo/lib64/:/usr/local/lib/ \
+    OMP_WAIT_POLICY=PASSIVE \
+    SHELL=/bin/bash \
+    SINGLE_APPLICATION=0 \
+    KASMVNC_BUILD_OS=ubuntu \
+    KASMVNC_BUILD_OS_CODENAME=bionic
+
+EXPOSE $VNC_PORT
+
+WORKDIR $HOME
+
+### REQUIRED STUFF ###
+
+RUN apt-get update && apt-get install -y supervisor xfce4 xfce4-terminal xterm libnss-wrapper gettext wget
+RUN apt-get purge -y pm-utils xscreensaver*
+RUN apt-get update && apt-get install -y vim less
+RUN apt-get update && apt-get -y install lsb-release
+
+RUN echo 'source $STARTUPDIR/generate_container_user' >> $HOME/.bashrc
+
+RUN mkdir -p $STARTUPDIR
+COPY startup/ $STARTUPDIR
+
+### START CUSTOM STUFF ####
+
+ARG KASMVNC_PACKAGE_DIR
+COPY $KASMVNC_PACKAGE_DIR/libjpeg-turbo_*.deb /tmp
+RUN apt-get install /tmp/libjpeg-turbo*deb
+
+ARG BUILD_DEBIAN_REVISION
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*$BUILD_DEBIAN_REVISION*.deb /tmp
+RUN dpkg -i /tmp/*.deb; apt-get -yf install
+
+### END CUSTOM STUFF ###
+
+RUN chown -R 1000:0 $HOME
+USER 1000:ssl-cert
+WORKDIR $HOME
+
+ENTRYPOINT [ "/dockerstartup/vnc_startup.sh" ]

builder/dockerfile.ubuntu_bionic.build

@@ -15,7 +15,7 @@ RUN apt-get update && apt-get -y install libjpeg-dev libpng-dev libtiff-dev libg
 
 # Additions for webp
 RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
-RUN cd /tmp && tar -xzvf /tmp/libwebp-*
+RUN cd /tmp && tar -xzf /tmp/libwebp-*
 RUN cd /tmp/libwebp-1.0.2 && \
     ./configure --enable-static --disable-shared && \
     make && make install
@@ -28,8 +28,7 @@ RUN cd /tmp/libwebp-1.0.2 && \
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
 
-COPY . /src
+COPY --chown=docker:docker . /src/
-RUN chown -R docker:docker /src
 
 USER docker
 ENTRYPOINT ["/src/builder/build.sh"]

builder/dockerfile.ubuntu_bionic.deb.build

@@ -7,4 +7,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker

builder/dockerfile.ubuntu_bionic.deb.test

@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 ### END CUSTOM STUFF ###
 

builder/dockerfile.ubuntu_focal.barebones.deb.test

@@ -1,8 +1,8 @@
 FROM ubuntu:focal
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
-RUN apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
+RUN rm -f /tmp/kasmvncserver_*+*.deb; apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
 RUN apt-get update && apt-get -y install xterm lsb-release
 
 RUN useradd -m foo && addgroup foo ssl-cert

builder/dockerfile.ubuntu_focal.build

@@ -17,15 +17,14 @@ RUN apt-get update && apt-get -y install libjpeg-dev libpng-dev libtiff-dev libg
 
 # Additions for webp
 RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
-RUN cd /tmp && tar -xzvf /tmp/libwebp-*
+RUN cd /tmp && tar -xzf /tmp/libwebp-*
 RUN cd /tmp/libwebp-1.0.2 && \
     ./configure --enable-static --disable-shared && \
     make && make install
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
 
-COPY . /src
+COPY --chown=docker:docker . /src/
-RUN chown -R docker:docker /src
 
 USER docker
 ENTRYPOINT ["/src/builder/build.sh"]

builder/dockerfile.ubuntu_focal.deb.build

@@ -9,4 +9,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker

builder/dockerfile.ubuntu_focal.deb.test

@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 RUN mkdir ~/.vnc && echo '/usr/bin/xfce4-session &' >> ~/.vnc/xstartup && \
   chmod +x ~/.vnc/xstartup

builder/os_ver_cli.sh

@@ -3,6 +3,11 @@ default_os_codename=bionic
 
 os=${1:-$default_os}
 os_codename=${2:-$default_os_codename}
+build_tag="${3:-}"
+if [[ -n "$build_tag" ]]; then
+   build_tag_for_images="_${build_tag#+}"
+   build_debian_revision="$(echo $build_tag | tr _ -)"
+fi
 os_image="$os:$os_codename"
 
 echo "Building for $os_image"

builder/test-deb

@@ -5,10 +5,12 @@ set -e
 cd "$(dirname "$0")"
 . ./os_ver_cli.sh
 
+tester_image=kasmvnctester_${os}:$os_codename${build_tag_for_images}
 docker build --build-arg KASMVNC_PACKAGE_DIR="build/${os_codename}" \
-  -t kasmvnctester_${os}:$os_codename \
+  --build-arg BUILD_DEBIAN_REVISION="$build_debian_revision" \
-  -f dockerfile.${os}_${os_codename}.deb.test .
+  -t "$tester_image" \
+  -f dockerfile.${os}_${os_codename}${build_tag}.deb.test .
 docker run -it -p 443:8443 --rm \
   -e KASMVNC_VERBOSE_LOGGING=$KASMVNC_VERBOSE_LOGGING \
   -e "VNC_USER=foo" -e "VNC_PW=foobar" \
-  kasmvnctester_${os}:$os_codename
+  "$tester_image"

centos/kasmvncserver.spec

@@ -69,7 +69,7 @@ cd $DST_MAN && ln -s vncpasswd.1 kasmvncpasswd.1;
 /usr/share/man/man1/*
 /usr/share/kasmvnc/www
 
-%license /usr/share/doc/kasmvncserver/LICENCE.TXT
+%license /usr/share/doc/kasmvncserver/LICENSE.TXT
 %doc /usr/share/doc/kasmvncserver/README.md
 
 %changelog

cmake/BuildPackages.cmake

@@ -76,5 +76,5 @@ endif() #UNIX
 # Common
 #
 
-install(FILES ${CMAKE_SOURCE_DIR}/LICENCE.TXT DESTINATION ${DOC_DIR})
+install(FILES ${CMAKE_SOURCE_DIR}/LICENSE.TXT DESTINATION ${DOC_DIR})
 install(FILES ${CMAKE_SOURCE_DIR}/README.md DESTINATION ${DOC_DIR})

common/network/GetAPI.h

@@ -24,6 +24,8 @@
 #include <rfb/PixelBuffer.h>
 #include <rfb/PixelFormat.h>
 #include <stdint.h>
+#include <map>
+#include <string>
 #include <vector>
 
 namespace network {
@@ -34,6 +36,17 @@ namespace network {
 
     // from main thread
     void mainUpdateScreen(rfb::PixelBuffer *pb);
+    void mainUpdateBottleneckStats(const char userid[], const char stats[]);
+    void mainClearBottleneckStats(const char userid[]);
+    void mainUpdateServerFrameStats(uint8_t changedPerc, uint32_t all,
+                                    uint32_t jpeg, uint32_t webp, uint32_t analysis,
+                                    uint32_t jpegarea, uint32_t webparea,
+                                    uint16_t njpeg, uint16_t nwebp,
+                                    uint16_t enc, uint16_t scale, uint16_t shot,
+                                    uint16_t w, uint16_t h);
+    void mainUpdateClientFrameStats(const char userid[], uint32_t render, uint32_t all,
+                                    uint32_t ping);
+    void mainUpdateUserInfo(const uint8_t ownerConn, const uint8_t numUsers);
 
     // from network threads
     uint8_t *netGetScreenshot(uint16_t w, uint16_t h,
@@ -42,13 +55,25 @@ namespace network {
     uint8_t netAddUser(const char name[], const char pw[], const bool write);
     uint8_t netRemoveUser(const char name[]);
     uint8_t netGiveControlTo(const char name[]);
+    void netGetBottleneckStats(char *buf, uint32_t len);
+    void netGetFrameStats(char *buf, uint32_t len);
+    uint8_t netServerFrameStatsReady();
 
     enum USER_ACTION {
       //USER_ADD, - handled locally for interactivity
       USER_REMOVE,
       USER_GIVE_CONTROL,
+      WANT_FRAME_STATS_SERVERONLY,
+      WANT_FRAME_STATS_ALL,
+      WANT_FRAME_STATS_OWNER,
+      WANT_FRAME_STATS_SPECIFIC,
     };
 
+    uint8_t netRequestFrameStats(USER_ACTION what, const char *client);
+    uint8_t netOwnerConnected();
+    uint8_t netNumActiveUsers();
+    uint8_t netGetClientFrameStatsNum();
+
     struct action_data {
       enum USER_ACTION action;
       kasmpasswd_entry_t data;
@@ -68,6 +93,40 @@ namespace network {
     std::vector<uint8_t> cachedJpeg;
     uint16_t cachedW, cachedH;
     uint8_t cachedQ;
+
+    std::map<std::string, std::string> bottleneckStats;
+    pthread_mutex_t statMutex;
+
+    struct clientFrameStats_t {
+      uint32_t render;
+      uint32_t all;
+      uint32_t ping;
+    };
+    struct serverFrameStats_t {
+      uint32_t all;
+      uint32_t jpeg;
+      uint32_t webp;
+      uint32_t analysis;
+      uint32_t jpegarea;
+      uint32_t webparea;
+      uint16_t njpeg;
+      uint16_t nwebp;
+      uint16_t enc;
+      uint16_t scale;
+      uint16_t shot;
+      uint16_t w;
+      uint16_t h;
+      uint8_t changedPerc;
+
+      uint8_t inprogress;
+    };
+    std::map<std::string, clientFrameStats_t> clientFrameStats;
+    serverFrameStats_t serverFrameStats;
+    pthread_mutex_t frameStatMutex;
+
+    uint8_t ownerConnected;
+    uint8_t activeUsers;
+    pthread_mutex_t userInfoMutex;
   };
 
 }

common/network/GetAPIMessager.cxx

@@ -21,6 +21,7 @@
 #include <inttypes.h>
 #include <network/GetAPI.h>
 #include <rfb/ConnParams.h>
+#include <rfb/EncodeManager.h>
 #include <rfb/LogWriter.h>
 #include <rfb/JpegCompressor.h>
 #include <rfb/xxhash.h>
@@ -32,10 +33,6 @@ using namespace rfb;
 
 static LogWriter vlog("GetAPIMessager");
 
-PixelBuffer *progressiveBilinearScale(const PixelBuffer *pb,
-					const uint16_t tgtw, const uint16_t tgth,
-					const float tgtdiff);
-
 struct TightJPEGConfiguration {
     int quality;
     int subsampling;
@@ -56,10 +53,16 @@ static const struct TightJPEGConfiguration conf[10] = {
 
 GetAPIMessager::GetAPIMessager(const char *passwdfile_): passwdfile(passwdfile_),
 					screenW(0), screenH(0), screenHash(0),
-					cachedW(0), cachedH(0), cachedQ(0) {
+					cachedW(0), cachedH(0), cachedQ(0),
+					ownerConnected(0), activeUsers(0) {
 
 	pthread_mutex_init(&screenMutex, NULL);
 	pthread_mutex_init(&userMutex, NULL);
+	pthread_mutex_init(&statMutex, NULL);
+	pthread_mutex_init(&frameStatMutex, NULL);
+	pthread_mutex_init(&userInfoMutex, NULL);
+
+	serverFrameStats.inprogress = 0;
 }
 
 // from main thread
@@ -95,6 +98,78 @@ void GetAPIMessager::mainUpdateScreen(rfb::PixelBuffer *pb) {
 	pthread_mutex_unlock(&screenMutex);
 }
 
+void GetAPIMessager::mainUpdateBottleneckStats(const char userid[], const char stats[]) {
+	if (pthread_mutex_trylock(&statMutex))
+		return;
+
+	bottleneckStats[userid] = stats;
+
+	pthread_mutex_unlock(&statMutex);
+}
+
+void GetAPIMessager::mainClearBottleneckStats(const char userid[]) {
+	if (pthread_mutex_lock(&statMutex))
+		return;
+
+	bottleneckStats.erase(userid);
+
+	pthread_mutex_unlock(&statMutex);
+}
+
+void GetAPIMessager::mainUpdateServerFrameStats(uint8_t changedPerc,
+	uint32_t all, uint32_t jpeg, uint32_t webp, uint32_t analysis,
+	uint32_t jpegarea, uint32_t webparea,
+	uint16_t njpeg, uint16_t nwebp,
+	uint16_t enc, uint16_t scale, uint16_t shot,
+	uint16_t w, uint16_t h) {
+
+	if (pthread_mutex_lock(&frameStatMutex))
+		return;
+
+	serverFrameStats.changedPerc = changedPerc;
+	serverFrameStats.all = all;
+	serverFrameStats.jpeg = jpeg;
+	serverFrameStats.webp = webp;
+	serverFrameStats.analysis = analysis;
+	serverFrameStats.jpegarea = jpegarea;
+	serverFrameStats.webparea = webparea;
+	serverFrameStats.njpeg = njpeg;
+	serverFrameStats.nwebp = nwebp;
+	serverFrameStats.enc = enc;
+	serverFrameStats.scale = scale;
+	serverFrameStats.shot = shot;
+	serverFrameStats.w = w;
+	serverFrameStats.h = h;
+
+	pthread_mutex_unlock(&frameStatMutex);
+}
+
+void GetAPIMessager::mainUpdateClientFrameStats(const char userid[], uint32_t render,
+	uint32_t all, uint32_t ping) {
+
+	if (pthread_mutex_lock(&frameStatMutex))
+		return;
+
+	clientFrameStats_t s;
+	s.render = render;
+	s.all = all;
+	s.ping = ping;
+
+	clientFrameStats[userid] = s;
+
+	pthread_mutex_unlock(&frameStatMutex);
+}
+
+void GetAPIMessager::mainUpdateUserInfo(const uint8_t ownerConn, const uint8_t numUsers) {
+	if (pthread_mutex_lock(&userInfoMutex))
+		return;
+
+	ownerConnected = ownerConn;
+	activeUsers = numUsers;
+
+	pthread_mutex_unlock(&userInfoMutex);
+}
+
 // from network threads
 uint8_t *GetAPIMessager::netGetScreenshot(uint16_t w, uint16_t h,
 	const uint8_t q, const bool dedup,
@@ -286,3 +361,271 @@ uint8_t GetAPIMessager::netGiveControlTo(const char name[]) {
 
 	return 1;
 }
+
+void GetAPIMessager::netGetBottleneckStats(char *buf, uint32_t len) {
+/*
+{
+    "username.1": {
+        "192.168.100.2:14908": [ 100, 100, 100, 100 ],
+        "192.168.100.3:14918": [ 100, 100, 100, 100 ]
+    },
+    "username.2": {
+        "192.168.100.5:14904": [ 100, 100, 100, 100 ]
+    }
+}
+*/
+	std::map<std::string, std::string>::const_iterator it;
+	const char *prev = NULL;
+	FILE *f;
+
+	if (pthread_mutex_lock(&statMutex)) {
+		buf[0] = 0;
+		return;
+	}
+
+	// Conservative estimate
+	if (len < bottleneckStats.size() * 60) {
+		buf[0] = 0;
+		goto out;
+	}
+
+	f = fmemopen(buf, len, "w");
+
+	fprintf(f, "{\n");
+
+	for (it = bottleneckStats.begin(); it != bottleneckStats.end(); it++) {
+		// user@127.0.0.1_1627311208.791752::websocket
+		const char *id = it->first.c_str();
+		const char *data = it->second.c_str();
+
+		const char *at = strchr(id, '@');
+		if (!at)
+			continue;
+
+		const unsigned userlen = at - id;
+		if (prev && !strncmp(prev, id, userlen)) {
+			// Same user
+			fprintf(f, ",\n\t\t\"%s\": %s", at + 1, data);
+		} else {
+			// New one
+			if (prev) {
+				fprintf(f, "\n\t},\n");
+			}
+			fprintf(f, "\t\"%.*s\": {\n", userlen, id);
+			fprintf(f, "\t\t\"%s\": %s", at + 1, data);
+		}
+
+		prev = id;
+	}
+
+	if (!bottleneckStats.size())
+		fprintf(f, "}\n");
+	else
+		fprintf(f, "\n\t}\n}\n");
+
+	fclose(f);
+
+out:
+	pthread_mutex_unlock(&statMutex);
+}
+
+void GetAPIMessager::netGetFrameStats(char *buf, uint32_t len) {
+/*
+{
+	"frame" : {
+		"resx": 1024,
+		"resy": 1280,
+		"changed": 75,
+		"server_time": 23
+	},
+	"server_side" : [
+		{ "process_name": "Analysis", "time": 20 },
+		{ "process_name": "TightWEBPEncoder", "time": 20, "count": 64, "area": 12 },
+		{ "process_name": "TightJPEGEncoder", "time": 20, "count": 64, "area": 12 }
+	],
+	"client_side" : [
+		{
+			"client": "123.1.2.1:1211",
+			"client_time": 20,
+			"ping": 20,
+			"processes" : [
+				{ "process_name": "scanRenderQ", "time": 20 }
+			]
+		}
+	}
+}
+*/
+	std::map<std::string, clientFrameStats_t>::const_iterator it;
+	unsigned i = 0;
+	FILE *f;
+
+	if (pthread_mutex_lock(&frameStatMutex)) {
+		buf[0] = 0;
+		return;
+	}
+
+	const unsigned num = clientFrameStats.size();
+
+	// Conservative estimate
+	if (len < 1024) {
+		buf[0] = 0;
+		goto out;
+	}
+
+	f = fmemopen(buf, len, "w");
+
+	fprintf(f, "{\n");
+
+	fprintf(f, "\t\"frame\" : {\n"
+	           "\t\t\"resx\": %u,\n"
+	           "\t\t\"resy\": %u,\n"
+	           "\t\t\"changed\": %u,\n"
+	           "\t\t\"server_time\": %u\n"
+	           "\t},\n",
+	           serverFrameStats.w,
+	           serverFrameStats.h,
+	           serverFrameStats.changedPerc,
+	           serverFrameStats.all);
+
+	fprintf(f, "\t\"server_side\" : [\n"
+	           "\t\t{ \"process_name\": \"Analysis\", \"time\": %u },\n"
+	           "\t\t{ \"process_name\": \"Screenshot\", \"time\": %u },\n"
+	           "\t\t{ \"process_name\": \"Encoding_total\", \"time\": %u, \"videoscaling\": %u },\n"
+	           "\t\t{ \"process_name\": \"TightJPEGEncoder\", \"time\": %u, \"count\": %u, \"area\": %u },\n"
+	           "\t\t{ \"process_name\": \"TightWEBPEncoder\", \"time\": %u, \"count\": %u, \"area\": %u }\n"
+	           "\t],\n",
+	           serverFrameStats.analysis,
+	           serverFrameStats.shot,
+	           serverFrameStats.enc,
+	           serverFrameStats.scale,
+	           serverFrameStats.jpeg,
+	           serverFrameStats.njpeg,
+	           serverFrameStats.jpegarea,
+	           serverFrameStats.webp,
+	           serverFrameStats.nwebp,
+	           serverFrameStats.webparea);
+
+	fprintf(f, "\t\"client_side\" : [\n");
+
+	for (it = clientFrameStats.begin(); it != clientFrameStats.end(); it++, i++) {
+		const char *id = it->first.c_str();
+		const clientFrameStats_t &s = it->second;
+
+		fprintf(f, "\t\t\{\n"
+		           "\t\t\t\"client\": \"%s\",\n"
+		           "\t\t\t\"client_time\": %u,\n"
+		           "\t\t\t\"ping\": %u,\n"
+		           "\t\t\t\"processes\" : [\n"
+		           "\t\t\t\t{ \"process_name\": \"scanRenderQ\", \"time\": %u }\n"
+		           "\t\t\t]\n"
+		           "\t\t}",
+		           id,
+		           s.all,
+		           s.ping,
+		           s.render);
+
+		if (i == num - 1)
+			fprintf(f, "\n");
+		else
+			fprintf(f, ",\n");
+	}
+
+	fprintf(f, "\t]\n}\n");
+
+	fclose(f);
+
+	serverFrameStats.inprogress = 0;
+
+out:
+	pthread_mutex_unlock(&frameStatMutex);
+}
+
+uint8_t GetAPIMessager::netRequestFrameStats(USER_ACTION what, const char *client) {
+	// Return 1 for success
+	action_data act;
+	act.action = what;
+	if (client) {
+		strncpy(act.data.password, client, PASSWORD_LEN);
+		act.data.password[PASSWORD_LEN - 1] = '\0';
+	}
+
+	// In progress already?
+	bool fail = false;
+	if (pthread_mutex_lock(&frameStatMutex))
+		return 0;
+
+	if (serverFrameStats.inprogress) {
+		fail = true;
+		vlog.error("Frame stats request already in progress, refusing another");
+	} else {
+		clientFrameStats.clear();
+		memset(&serverFrameStats, 0, sizeof(serverFrameStats_t));
+		serverFrameStats.inprogress = 1;
+	}
+
+	pthread_mutex_unlock(&frameStatMutex);
+	if (fail)
+		return 0;
+
+	// Send it in
+	if (pthread_mutex_lock(&userMutex))
+		return 0;
+
+	actionQueue.push_back(act);
+
+	pthread_mutex_unlock(&userMutex);
+
+	return 1;
+}
+
+uint8_t GetAPIMessager::netOwnerConnected() {
+	uint8_t ret;
+
+	if (pthread_mutex_lock(&userInfoMutex))
+		return 0;
+
+	ret = ownerConnected;
+
+	pthread_mutex_unlock(&userInfoMutex);
+
+	return ret;
+}
+
+uint8_t GetAPIMessager::netNumActiveUsers() {
+	uint8_t ret;
+
+	if (pthread_mutex_lock(&userInfoMutex))
+		return 0;
+
+	ret = activeUsers;
+
+	pthread_mutex_unlock(&userInfoMutex);
+
+	return ret;
+}
+
+uint8_t GetAPIMessager::netGetClientFrameStatsNum() {
+	uint8_t ret;
+
+	if (pthread_mutex_lock(&frameStatMutex))
+		return 0;
+
+	ret = clientFrameStats.size();
+
+	pthread_mutex_unlock(&frameStatMutex);
+
+	return ret;
+}
+
+uint8_t GetAPIMessager::netServerFrameStatsReady() {
+	uint8_t ret;
+
+	if (pthread_mutex_lock(&frameStatMutex))
+		return 0;
+
+	ret = serverFrameStats.w != 0;
+
+	pthread_mutex_unlock(&frameStatMutex);
+
+	return ret;
+}

common/network/Socket.cxx

@@ -25,6 +25,9 @@
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #define errorNumber WSAGetLastError()
+#define SHUT_RD SD_RECEIVE
+#define SHUT_WR SD_SEND
+#define SHUT_RDWR SD_BOTH
 #else
 #define errorNumber errno
 #define closesocket close
@@ -94,7 +97,7 @@ Socket::~Socket()
 void Socket::shutdown()
 {
   isShutdown_ = true;
-  ::shutdown(getFd(), 2);
+  ::shutdown(getFd(), SHUT_RDWR);
 }
 
 bool Socket::isShutdown() const
@@ -149,7 +152,7 @@ void SocketListener::shutdown()
   closesocket(fd);
   fd = -1;
 #else
-  ::shutdown(fd, 2);
+  ::shutdown(fd, SHUT_RDWR);
 #endif
 }
 

common/network/TcpSocket.cxx

@@ -40,6 +40,8 @@
 #include <unistd.h>
 #include <pthread.h>
 #include <wordexp.h>
+#include <sys/types.h>
+#include <unistd.h>
 #include "websocket.h"
 
 #include <network/GetAPI.h>
@@ -459,6 +461,67 @@ static uint8_t givecontrolCb(void *messager, const char name[])
   return msgr->netGiveControlTo(name);
 }
 
+static void bottleneckStatsCb(void *messager, char *buf, uint32_t len)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  msgr->netGetBottleneckStats(buf, len);
+}
+
+static void frameStatsCb(void *messager, char *buf, uint32_t len)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  msgr->netGetFrameStats(buf, len);
+}
+
+static uint8_t requestFrameStatsNoneCb(void *messager)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  return msgr->netRequestFrameStats(GetAPIMessager::WANT_FRAME_STATS_SERVERONLY, NULL);
+}
+
+static uint8_t requestFrameStatsOwnerCb(void *messager)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  return msgr->netRequestFrameStats(GetAPIMessager::WANT_FRAME_STATS_OWNER, NULL);
+}
+
+static uint8_t requestFrameStatsAllCb(void *messager)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  return msgr->netRequestFrameStats(GetAPIMessager::WANT_FRAME_STATS_ALL, NULL);
+}
+
+static uint8_t requestFrameStatsOneCb(void *messager, const char *client)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  return msgr->netRequestFrameStats(GetAPIMessager::WANT_FRAME_STATS_SPECIFIC, client);
+}
+
+static uint8_t ownerConnectedCb(void *messager)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  return msgr->netOwnerConnected();
+}
+
+static uint8_t numActiveUsersCb(void *messager)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  return msgr->netNumActiveUsers();
+}
+
+static uint8_t getClientFrameStatsNumCb(void *messager)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  return msgr->netGetClientFrameStatsNum();
+}
+
+static uint8_t serverFrameStatsReadyCb(void *messager)
+{
+  GetAPIMessager *msgr = (GetAPIMessager *) messager;
+  return msgr->netServerFrameStatsReady();
+}
+
+
 WebsocketListener::WebsocketListener(const struct sockaddr *listenaddr,
                          socklen_t listenaddrlen,
                          bool sslonly, const char *cert, const char *certkey,
@@ -503,7 +566,7 @@ WebsocketListener::WebsocketListener(const struct sockaddr *listenaddr,
   if (bind(sock, &sa.u.sa, listenaddrlen) == -1) {
     int e = errorNumber;
     closesocket(sock);
-    throw SocketException("failed to bind socket", e);
+    throw SocketException("failed to bind socket, is someone else on our -websocketPort?", e);
   }
 
   listen(sock); // sets the internal fd
@@ -513,13 +576,16 @@ WebsocketListener::WebsocketListener(const struct sockaddr *listenaddr,
   //
   internalSocket = socket(AF_UNIX, SOCK_STREAM, 0);
 
+  char sockname[32];
+  sprintf(sockname, ".KasmVNCSock%u", getpid());
+
   struct sockaddr_un addr;
   addr.sun_family = AF_UNIX;
-  strcpy(addr.sun_path, ".KasmVNCSock");
+  strcpy(addr.sun_path, sockname);
   addr.sun_path[0] = '\0';
 
   if (bind(internalSocket, (struct sockaddr *) &addr,
-           sizeof(sa_family_t) + sizeof(".KasmVNCSock"))) {
+           sizeof(sa_family_t) + strlen(sockname))) {
     throw SocketException("failed to bind socket", errorNumber);
   }
 
@@ -548,6 +614,18 @@ WebsocketListener::WebsocketListener(const struct sockaddr *listenaddr,
   settings.adduserCb = adduserCb;
   settings.removeCb = removeCb;
   settings.givecontrolCb = givecontrolCb;
+  settings.bottleneckStatsCb = bottleneckStatsCb;
+  settings.frameStatsCb = frameStatsCb;
+
+  settings.requestFrameStatsNoneCb = requestFrameStatsNoneCb;
+  settings.requestFrameStatsOwnerCb = requestFrameStatsOwnerCb;
+  settings.requestFrameStatsAllCb = requestFrameStatsAllCb;
+  settings.requestFrameStatsOneCb = requestFrameStatsOneCb;
+
+  settings.ownerConnectedCb = ownerConnectedCb;
+  settings.numActiveUsersCb = numActiveUsersCb;
+  settings.getClientFrameStatsNumCb = getClientFrameStatsNumCb;
+  settings.serverFrameStatsReadyCb = serverFrameStatsReadyCb;
 
   pthread_t tid;
   pthread_create(&tid, NULL, start_server, NULL);

common/network/websocket.c

@@ -111,7 +111,7 @@ static const char *parse_get(const char * const in, const char * const opt, unsi
 	return "";
 }
 
-static void percent_decode(const char *src, char *dst) {
+static void percent_decode(const char *src, char *dst, const uint8_t filter) {
 	while (1) {
 		if (!*src)
 			break;
@@ -127,7 +127,32 @@ static void percent_decode(const char *src, char *dst) {
 			hex[2] = '\0';
 
 			src += 2;
-			*dst++ = strtol(hex, NULL, 16);
+			*dst = strtol(hex, NULL, 16);
+
+			if (filter) {
+				// Avoid directory traversal
+				if (*dst == '/')
+					*dst = '_';
+			}
+
+			dst++;
+		}
+	}
+
+	*dst = '\0';
+}
+
+static void percent_encode(const char *src, char *dst) {
+	while (1) {
+		if (!*src)
+			break;
+		if (isalnum(*src) || *src == '.' || *src == ',') {
+			*dst++ = *src++;
+		} else {
+			*dst++ = '%';
+			sprintf(dst, "%02X", *src);
+			dst += 2;
+			src++;
 		}
 	}
 
@@ -566,7 +591,7 @@ int parse_handshake(ws_ctx_t *ws_ctx, char *handshake) {
     headers->key3[0] = '\0';
 
     if ((strlen(handshake) < 92) || (bcmp(handshake, "GET ", 4) != 0) ||
-        (!strstr(handshake, "Upgrade: websocket"))) {
+        (!strcasestr(handshake, "Upgrade: websocket"))) {
         return 0;
     }
     start = handshake+4;
@@ -583,11 +608,11 @@ int parse_handshake(ws_ctx_t *ws_ctx, char *handshake) {
     headers->host[end-start] = '\0';
 
     headers->origin[0] = '\0';
-    start = strstr(handshake, "\r\nOrigin: ");
+    start = strcasestr(handshake, "\r\nOrigin: ");
     if (start) {
         start += 10;
     } else {
-        start = strstr(handshake, "\r\nSec-WebSocket-Origin: ");
+        start = strcasestr(handshake, "\r\nSec-WebSocket-Origin: ");
         if (!start) { return 0; }
         start += 24;
     }
@@ -595,7 +620,7 @@ int parse_handshake(ws_ctx_t *ws_ctx, char *handshake) {
     strncpy(headers->origin, start, end-start);
     headers->origin[end-start] = '\0';
 
-    start = strstr(handshake, "\r\nSec-WebSocket-Version: ");
+    start = strcasestr(handshake, "\r\nSec-WebSocket-Version: ");
     if (start) {
         // HyBi/RFC 6455
         start += 25;
@@ -605,7 +630,7 @@ int parse_handshake(ws_ctx_t *ws_ctx, char *handshake) {
         ws_ctx->hixie = 0;
         ws_ctx->hybi = strtol(headers->version, NULL, 10);
 
-        start = strstr(handshake, "\r\nSec-WebSocket-Key: ");
+        start = strcasestr(handshake, "\r\nSec-WebSocket-Key: ");
         if (!start) { return 0; }
         start += 21;
         end = strstr(start, "\r\n");
@@ -619,7 +644,7 @@ int parse_handshake(ws_ctx_t *ws_ctx, char *handshake) {
         strncpy(headers->connection, start, end-start);
         headers->connection[end-start] = '\0';
 
-        start = strstr(handshake, "\r\nSec-WebSocket-Protocol: ");
+        start = strcasestr(handshake, "\r\nSec-WebSocket-Protocol: ");
         if (!start) { return 0; }
         start += 26;
         end = strstr(start, "\r\n");
@@ -637,14 +662,14 @@ int parse_handshake(ws_ctx_t *ws_ctx, char *handshake) {
             strncpy(headers->key3, start, 8);
             headers->key3[8] = '\0';
 
-            start = strstr(handshake, "\r\nSec-WebSocket-Key1: ");
+            start = strcasestr(handshake, "\r\nSec-WebSocket-Key1: ");
             if (!start) { return 0; }
             start += 22;
             end = strstr(start, "\r\n");
             strncpy(headers->key1, start, end-start);
             headers->key1[end-start] = '\0';
 
-            start = strstr(handshake, "\r\nSec-WebSocket-Key2: ");
+            start = strcasestr(handshake, "\r\nSec-WebSocket-Key2: ");
             if (!start) { return 0; }
             start += 22;
             end = strstr(start, "\r\n");
@@ -746,6 +771,7 @@ def:
 
 static void dirlisting(ws_ctx_t *ws_ctx, const char fullpath[], const char path[]) {
     char buf[4096];
+    char enc[PATH_MAX * 3 + 1];
     unsigned i;
 
     // Redirect?
@@ -779,7 +805,15 @@ static void dirlisting(ws_ctx_t *ws_ctx, const char fullpath[], const char path[
         if (!strcmp(names[i]->d_name, ".") || !strcmp(names[i]->d_name, ".."))
             continue;
 
-        sprintf(buf, "<li><a href=\"%s\">%s</a></li>", names[i]->d_name, names[i]->d_name);
+        percent_encode(names[i]->d_name, enc);
+
+        if (names[i]->d_type == DT_DIR)
+	        sprintf(buf, "<li><a href=\"%s/\">%s/</a></li>", enc,
+	                names[i]->d_name);
+        else
+	        sprintf(buf, "<li><a href=\"%s\">%s</a></li>", enc,
+	                names[i]->d_name);
+
         ws_send(ws_ctx, buf, strlen(buf));
     }
 
@@ -816,13 +850,15 @@ static void servefile(ws_ctx_t *ws_ctx, const char *in) {
         len = strlen(path);
     }
 
-    wserr("Requested file '%s'\n", path);
+    percent_decode(path, buf, 1);
-    sprintf(fullpath, "%s/%s", settings.httpdir, path);
+
+    wserr("Requested file '%s'\n", buf);
+    sprintf(fullpath, "%s/%s", settings.httpdir, buf);
 
     DIR *dir = opendir(fullpath);
     if (dir) {
         closedir(dir);
-        dirlisting(ws_ctx, fullpath, path);
+        dirlisting(ws_ctx, fullpath, buf);
         return;
     }
 
@@ -970,14 +1006,14 @@ static uint8_t ownerapi(ws_ctx_t *ws_ctx, const char *in) {
         if (len) {
             memcpy(buf, param, len);
             buf[len] = '\0';
-            percent_decode(buf, decname);
+            percent_decode(buf, decname, 0);
         }
 
         param = parse_get(args, "password", &len);
         if (len) {
             memcpy(buf, param, len);
             buf[len] = '\0';
-            percent_decode(buf, decpw);
+            percent_decode(buf, decpw, 0);
 
             struct crypt_data cdata;
             cdata.initialized = 0;
@@ -1017,7 +1053,7 @@ static uint8_t ownerapi(ws_ctx_t *ws_ctx, const char *in) {
         if (len) {
             memcpy(buf, param, len);
             buf[len] = '\0';
-            percent_decode(buf, decname);
+            percent_decode(buf, decname, 0);
         }
 
         if (!decname[0])
@@ -1046,7 +1082,7 @@ static uint8_t ownerapi(ws_ctx_t *ws_ctx, const char *in) {
         if (len) {
             memcpy(buf, param, len);
             buf[len] = '\0';
-            percent_decode(buf, decname);
+            percent_decode(buf, decname, 0);
         }
 
         if (!decname[0])
@@ -1068,6 +1104,89 @@ static uint8_t ownerapi(ws_ctx_t *ws_ctx, const char *in) {
 
         wserr("Passed give_control request to main thread\n");
         ret = 1;
+    } else entry("/api/get_bottleneck_stats") {
+        char statbuf[4096];
+        settings.bottleneckStatsCb(settings.messager, statbuf, 4096);
+
+        sprintf(buf, "HTTP/1.1 200 OK\r\n"
+                 "Server: KasmVNC/4.0\r\n"
+                 "Connection: close\r\n"
+                 "Content-type: text/plain\r\n"
+                 "Content-length: %lu\r\n"
+                 "\r\n", strlen(statbuf));
+        ws_send(ws_ctx, buf, strlen(buf));
+        ws_send(ws_ctx, statbuf, strlen(statbuf));
+
+        wserr("Sent bottleneck stats to API caller\n");
+        ret = 1;
+    } else entry("/api/get_frame_stats") {
+        char statbuf[4096], decname[1024];
+        unsigned waitfor;
+
+        param = parse_get(args, "client", &len);
+        if (len) {
+            memcpy(buf, param, len);
+            buf[len] = '\0';
+            percent_decode(buf, decname, 0);
+        } else {
+            wserr("client param required\n");
+            goto nope;
+        }
+
+        if (!decname[0])
+            goto nope;
+
+        if (!strcmp(decname, "none")) {
+            waitfor = 0;
+            if (!settings.requestFrameStatsNoneCb(settings.messager))
+                goto nope;
+        } else if (!strcmp(decname, "auto")) {
+            waitfor = settings.ownerConnectedCb(settings.messager);
+            if (!waitfor) {
+                if (!settings.requestFrameStatsNoneCb(settings.messager))
+                    goto nope;
+            } else {
+                if (!settings.requestFrameStatsOwnerCb(settings.messager))
+                    goto nope;
+            }
+        } else if (!strcmp(decname, "all")) {
+            waitfor = settings.numActiveUsersCb(settings.messager);
+            if (!settings.requestFrameStatsAllCb(settings.messager))
+                goto nope;
+        } else {
+            waitfor = 1;
+            if (!settings.requestFrameStatsOneCb(settings.messager, decname))
+                goto nope;
+        }
+
+        while (1) {
+            usleep(10 * 1000);
+            if (settings.serverFrameStatsReadyCb(settings.messager))
+                break;
+        }
+
+        if (waitfor) {
+            unsigned waits;
+            for (waits = 0; waits < 20; waits++) { // wait up to 2s
+                if (settings.getClientFrameStatsNumCb(settings.messager) >= waitfor)
+                    break;
+                usleep(100 * 1000);
+            }
+        }
+
+        settings.frameStatsCb(settings.messager, statbuf, 4096);
+
+        sprintf(buf, "HTTP/1.1 200 OK\r\n"
+                 "Server: KasmVNC/4.0\r\n"
+                 "Connection: close\r\n"
+                 "Content-type: text/plain\r\n"
+                 "Content-length: %lu\r\n"
+                 "\r\n", strlen(statbuf));
+        ws_send(ws_ctx, buf, strlen(buf));
+        ws_send(ws_ctx, statbuf, strlen(statbuf));
+
+        wserr("Sent frame stats to API caller\n");
+        ret = 1;
     }
 
     #undef entry
@@ -1231,6 +1350,8 @@ ws_ctx_t *do_handshake(int sock) {
             } else {
                 // Client tried an empty password, just fail them
                 response[0] = '\0';
+                authbuf[0] = 'a';
+                authbuf[1] = '\0';
             }
         }
 

common/network/websocket.h

@@ -84,6 +84,18 @@ typedef struct {
                           const uint8_t write);
     uint8_t (*removeCb)(void *messager, const char name[]);
     uint8_t (*givecontrolCb)(void *messager, const char name[]);
+    void (*bottleneckStatsCb)(void *messager, char *buf, uint32_t len);
+    void (*frameStatsCb)(void *messager, char *buf, uint32_t len);
+
+    uint8_t (*requestFrameStatsNoneCb)(void *messager);
+    uint8_t (*requestFrameStatsOwnerCb)(void *messager);
+    uint8_t (*requestFrameStatsAllCb)(void *messager);
+    uint8_t (*requestFrameStatsOneCb)(void *messager, const char *client);
+
+    uint8_t (*ownerConnectedCb)(void *messager);
+    uint8_t (*numActiveUsersCb)(void *messager);
+    uint8_t (*getClientFrameStatsNumCb)(void *messager);
+    uint8_t (*serverFrameStatsReadyCb)(void *messager);
 } settings_t;
 
 #ifdef __cplusplus

common/network/websockify.c

@@ -20,6 +20,8 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
 #include "websocket.h"
 
 /*
@@ -42,11 +44,11 @@ static void do_proxy(ws_ctx_t *ws_ctx, int target) {
     int maxfd, client = ws_ctx->sockfd;
     unsigned int opcode, left, ret;
     unsigned int tout_start, tout_end, cout_start, cout_end;
-    unsigned int tin_start, tin_end;
+    unsigned int tin_end;
     ssize_t len, bytes;
 
     tout_start = tout_end = cout_start = cout_end =
-    tin_start = tin_end = 0;
+    tin_end = 0;
     maxfd = client > target ? client+1 : target+1;
 
     while (1) {
@@ -163,7 +165,7 @@ static void do_proxy(ws_ctx_t *ws_ctx, int target) {
         }
 
         if (FD_ISSET(client, &rlist)) {
-            bytes = ws_recv(ws_ctx, ws_ctx->tin_buf + tin_end, BUFSIZE-1);
+            bytes = ws_recv(ws_ctx, ws_ctx->tin_buf + tin_end, BUFSIZE-1-tin_end);
             if (pipe_error) { break; }
             if (bytes <= 0) {
                 handler_emsg("client closed connection\n");
@@ -178,13 +180,13 @@ static void do_proxy(ws_ctx_t *ws_ctx, int target) {
             printf("\n");
             */
             if (ws_ctx->hybi) {
-                len = decode_hybi(ws_ctx->tin_buf + tin_start,
+                len = decode_hybi(ws_ctx->tin_buf,
-                                  tin_end-tin_start,
+                                  tin_end,
                                   ws_ctx->tout_buf, BUFSIZE-1,
                                   &opcode, &left);
             } else {
-                len = decode_hixie(ws_ctx->tin_buf + tin_start,
+                len = decode_hixie(ws_ctx->tin_buf,
-                                   tin_end-tin_start,
+                                   tin_end,
                                    ws_ctx->tout_buf, BUFSIZE-1,
                                    &opcode, &left);
             }
@@ -206,10 +208,13 @@ static void do_proxy(ws_ctx_t *ws_ctx, int target) {
                 break;
             }
             if (left) {
-                tin_start = tin_end - left;
+                const unsigned tin_start = tin_end - left;
-                //printf("partial frame from client");
+                //handler_emsg("partial frame from client, %u left, start %u end %u, lens %lu %lu\n",
+                //             left, tin_start, tin_end, bytes, len);
+                memmove(ws_ctx->tin_buf, ws_ctx->tin_buf + tin_start, left);
+                tin_end = left;
             } else {
-                tin_start = 0;
+                //handler_emsg("handled %lu/%lu bytes\n", bytes, len);
                 tin_end = 0;
             }
 
@@ -222,14 +227,21 @@ static void do_proxy(ws_ctx_t *ws_ctx, int target) {
 
 void proxy_handler(ws_ctx_t *ws_ctx) {
 
+    char sockname[32];
+    sprintf(sockname, ".KasmVNCSock%u", getpid());
+
     struct sockaddr_un addr;
     addr.sun_family = AF_UNIX;
-    strcpy(addr.sun_path, ".KasmVNCSock");
+    strcpy(addr.sun_path, sockname);
     addr.sun_path[0] = '\0';
 
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+
     struct sockaddr_un myaddr;
     myaddr.sun_family = AF_UNIX;
-    sprintf(myaddr.sun_path, ".%s@%s", ws_ctx->user, ws_ctx->ip);
+    sprintf(myaddr.sun_path, ".%s@%s_%lu.%lu", ws_ctx->user, ws_ctx->ip,
+            tv.tv_sec, tv.tv_usec);
     myaddr.sun_path[0] = '\0';
 
     int tsock = socket(AF_UNIX, SOCK_STREAM, 0);
@@ -238,7 +250,7 @@ void proxy_handler(ws_ctx_t *ws_ctx) {
     handler_msg("connecting to VNC target\n");
 
     if (connect(tsock, (struct sockaddr *) &addr,
-        sizeof(sa_family_t) + sizeof(".KasmVNCSock")) < 0) {
+        sizeof(sa_family_t) + strlen(sockname)) < 0) {
 
         handler_emsg("Could not connect to target: %s\n",
                      strerror(errno));

common/rdr/BufferedInStream.cxx

@@ -0,0 +1,69 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright 2020 Pierre Ossman for Cendio AB
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <rdr/BufferedInStream.h>
+#include <rdr/Exception.h>
+
+using namespace rdr;
+
+static const size_t DEFAULT_BUF_SIZE = 8192;
+
+BufferedInStream::BufferedInStream()
+  : bufSize(DEFAULT_BUF_SIZE), offset(0)
+{
+  ptr = end = start = new U8[bufSize];
+}
+
+BufferedInStream::~BufferedInStream()
+{
+  delete [] start;
+}
+
+size_t BufferedInStream::pos()
+{
+  return offset + ptr - start;
+}
+
+bool BufferedInStream::overrun(size_t needed, bool wait)
+{
+  if (needed > bufSize)
+    throw Exception("BufferedInStream overrun: "
+                    "requested size of %lu bytes exceeds maximum of %lu bytes",
+                    (long unsigned)needed, (long unsigned)bufSize);
+
+  // Do we need to shuffle things around?
+  if ((bufSize - (ptr - start)) < needed) {
+    memmove(start, ptr, end - ptr);
+
+    offset += ptr - start;
+    end -= ptr - start;
+    ptr = start;
+  }
+
+  while (avail() < needed) {
+    if (!fillBuffer(start + bufSize - end, wait))
+      return false;
+  }
+
+  return true;
+}

common/rdr/BufferedInStream.h

@@ -0,0 +1,54 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright 2020 Pierre Ossman for Cendio AB
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+//
+// Base class for input streams with a buffer
+//
+
+#ifndef __RDR_BUFFEREDINSTREAM_H__
+#define __RDR_BUFFEREDINSTREAM_H__
+
+#include <rdr/InStream.h>
+
+namespace rdr {
+
+  class BufferedInStream : public InStream {
+
+  public:
+    virtual ~BufferedInStream();
+
+    virtual size_t pos();
+
+  private:
+    virtual bool fillBuffer(size_t maxSize, bool wait) = 0;
+
+    virtual bool overrun(size_t needed, bool wait);
+
+  private:
+    size_t bufSize;
+    size_t offset;
+    U8* start;
+
+  protected:
+    BufferedInStream();
+  };
+
+} // end of namespace rdr
+
+#endif

common/rdr/BufferedOutStream.cxx

@@ -0,0 +1,108 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright 2011-2020 Pierre Ossman for Cendio AB
+ * Copyright 2017 Peter Astrand <astrand@cendio.se> for Cendio AB
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <rdr/BufferedOutStream.h>
+#include <rdr/Exception.h>
+
+
+using namespace rdr;
+
+static const size_t DEFAULT_BUF_SIZE = 16384;
+
+BufferedOutStream::BufferedOutStream()
+  : bufSize(DEFAULT_BUF_SIZE), offset(0)
+{
+  ptr = start = sentUpTo = new U8[bufSize];
+  end = start + bufSize;
+}
+
+BufferedOutStream::~BufferedOutStream()
+{
+  // FIXME: Complain about non-flushed buffer?
+  delete [] start;
+}
+
+size_t BufferedOutStream::length()
+{
+  return offset + ptr - sentUpTo;
+}
+
+size_t BufferedOutStream::bufferUsage()
+{
+  return ptr - sentUpTo;
+}
+
+void BufferedOutStream::flush()
+{
+  while (sentUpTo < ptr) {
+    size_t len;
+
+    len = bufferUsage();
+
+    if (!flushBuffer(false))
+      break;
+
+    offset += len - bufferUsage();
+  }
+
+  // Managed to flush everything?
+  if (sentUpTo == ptr)
+    ptr = sentUpTo = start;
+}
+
+void BufferedOutStream::overrun(size_t needed)
+{
+  if (needed > bufSize)
+    throw Exception("BufferedOutStream overrun: "
+                    "requested size of %lu bytes exceeds maximum of %lu bytes",
+                    (long unsigned)needed, (long unsigned)bufSize);
+
+  // First try to get rid of the data we have
+  flush();
+
+  // Still not enough space?
+  while (needed > avail()) {
+    // Can we shuffle things around?
+    // (don't do this if it gains us less than 25%)
+    if (((size_t)(sentUpTo - start) > bufSize / 4) &&
+        (needed < bufSize - (ptr - sentUpTo))) {
+      memmove(start, sentUpTo, ptr - sentUpTo);
+      ptr = start + (ptr - sentUpTo);
+      sentUpTo = start;
+    } else {
+      size_t len;
+
+      len = bufferUsage();
+
+      // Have to get rid of more data, so allow the flush to wait...
+      flushBuffer(true);
+
+      offset += len - bufferUsage();
+
+       // Managed to flush everything?
+      if (sentUpTo == ptr)
+        ptr = sentUpTo = start;
+    }
+  }
+}

common/rdr/BufferedOutStream.h

@@ -0,0 +1,65 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright 2011-2020 Pierre Ossman for Cendio AB
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+//
+// Base class for output streams with a buffer
+//
+
+#ifndef __RDR_BUFFEREDOUTSTREAM_H__
+#define __RDR_BUFFEREDOUTSTREAM_H__
+
+#include <rdr/OutStream.h>
+
+namespace rdr {
+
+  class BufferedOutStream : public OutStream {
+
+  public:
+    virtual ~BufferedOutStream();
+
+    virtual size_t length();
+    virtual void flush();
+
+    size_t bufferUsage();
+
+  private:
+    // flushBuffer() requests that the stream be flushed. Returns true if it is
+    // able to progress the output (which might still not mean any bytes
+    // actually moved) and can be called again. If wait is true then it will
+    // block until all data has been written.
+
+    virtual bool flushBuffer(bool wait) = 0;
+
+    virtual void overrun(size_t needed);
+
+  private:
+    size_t bufSize;
+    size_t offset;
+    U8* start;
+
+  protected:
+    U8* sentUpTo;
+
+  protected:
+    BufferedOutStream();
+  };
+
+}
+
+#endif

common/rdr/CMakeLists.txt

@@ -1,6 +1,8 @@
 include_directories(${CMAKE_SOURCE_DIR}/common ${ZLIB_INCLUDE_DIRS})
 
 add_library(rdr STATIC
+  BufferedInStream.cxx
+  BufferedOutStream.cxx
   Exception.cxx
   FdInStream.cxx
   FdOutStream.cxx

common/rdr/FdInStream.cxx

@@ -36,13 +36,6 @@
 #include <unistd.h>
 #endif
 
-#ifndef vncmin
-#define vncmin(a,b)            (((a) < (b)) ? (a) : (b))
-#endif
-#ifndef vncmax
-#define vncmax(a,b)            (((a) > (b)) ? (a) : (b))
-#endif
-
 /* Old systems have select() in sys/time.h */
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
@@ -53,31 +46,22 @@
 
 using namespace rdr;
 
-enum { DEFAULT_BUF_SIZE = 8192,
+enum { DEFAULT_BUF_SIZE = 8192 };
-       MIN_BULK_SIZE = 1024 };
 
-FdInStream::FdInStream(int fd_, int timeoutms_, size_t bufSize_,
+FdInStream::FdInStream(int fd_, int timeoutms_,
                        bool closeWhenDone_)
   : fd(fd_), closeWhenDone(closeWhenDone_),
-    timeoutms(timeoutms_), blockCallback(0),
+    timeoutms(timeoutms_), blockCallback(0)
-    timing(false), timeWaitedIn100us(5), timedKbits(0),
-    bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
 {
-  ptr = end = start = new U8[bufSize];
 }
 
-FdInStream::FdInStream(int fd_, FdInStreamBlockCallback* blockCallback_,
+FdInStream::FdInStream(int fd_, FdInStreamBlockCallback* blockCallback_)
-                       size_t bufSize_)
+  : fd(fd_), timeoutms(0), blockCallback(blockCallback_)
-  : fd(fd_), timeoutms(0), blockCallback(blockCallback_),
-    timing(false), timeWaitedIn100us(5), timedKbits(0),
-    bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
 {
-  ptr = end = start = new U8[bufSize];
 }
 
 FdInStream::~FdInStream()
 {
-  delete [] start;
   if (closeWhenDone) close(fd);
 }
 
@@ -92,72 +76,15 @@ void FdInStream::setBlockCallback(FdInStreamBlockCallback* blockCallback_)
   timeoutms = 0;
 }
 
-size_t FdInStream::pos()
+
+bool FdInStream::fillBuffer(size_t maxSize, bool wait)
 {
-  return offset + ptr - start;
+  size_t n = readWithTimeoutOrCallback((U8*)end, maxSize, wait);
-}
+  if (n == 0)
+    return false;
+  end += n;
 
-void FdInStream::readBytes(void* data, size_t length)
+  return true;
-{
-  if (length < MIN_BULK_SIZE) {
-    InStream::readBytes(data, length);
-    return;
-  }
-
-  U8* dataPtr = (U8*)data;
-
-  size_t n = end - ptr;
-  if (n > length) n = length;
-
-  memcpy(dataPtr, ptr, n);
-  dataPtr += n;
-  length -= n;
-  ptr += n;
-
-  while (length > 0) {
-    n = readWithTimeoutOrCallback(dataPtr, length);
-    dataPtr += n;
-    length -= n;
-    offset += n;
-  }
-}
-
-
-size_t FdInStream::overrun(size_t itemSize, size_t nItems, bool wait)
-{
-  if (itemSize > bufSize)
-    throw Exception("FdInStream overrun: max itemSize exceeded");
-
-  if (end - ptr != 0)
-    memmove(start, ptr, end - ptr);
-
-  offset += ptr - start;
-  end -= ptr - start;
-  ptr = start;
-
-  size_t bytes_to_read;
-  while ((size_t)(end - start) < itemSize) {
-    bytes_to_read = start + bufSize - end;
-    if (!timing) {
-      // When not timing, we must be careful not to read too much
-      // extra data into the buffer. Otherwise, the line speed
-      // estimation might stay at zero for a long time: All reads
-      // during timing=1 can be satisfied without calling
-      // readWithTimeoutOrCallback. However, reading only 1 or 2 bytes
-      // bytes is ineffecient.
-      bytes_to_read = vncmin(bytes_to_read, vncmax(itemSize*nItems, 8));
-    }
-    size_t n = readWithTimeoutOrCallback((U8*)end, bytes_to_read, wait);
-    if (n == 0) return 0;
-    end += n;
-  }
-
-  size_t nAvail;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
 }
 
 //
@@ -175,10 +102,6 @@ size_t FdInStream::overrun(size_t itemSize, size_t nItems, bool wait)
 
 size_t FdInStream::readWithTimeoutOrCallback(void* buf, size_t len, bool wait)
 {
-  struct timeval before, after;
-  if (timing)
-    gettimeofday(&before, 0);
-
   int n;
   while (true) {
     do {
@@ -215,48 +138,5 @@ size_t FdInStream::readWithTimeoutOrCallback(void* buf, size_t len, bool wait)
   if (n < 0) throw SystemException("read",errno);
   if (n == 0) throw EndOfStream();
 
-  if (timing) {
-    gettimeofday(&after, 0);
-    int newTimeWaited = ((after.tv_sec - before.tv_sec) * 10000 +
-                         (after.tv_usec - before.tv_usec) / 100);
-    int newKbits = n * 8 / 1000;
-
-    // limit rate to between 10kbit/s and 40Mbit/s
-
-    if (newTimeWaited > newKbits*1000) newTimeWaited = newKbits*1000;
-    if (newTimeWaited < newKbits/4)    newTimeWaited = newKbits/4;
-
-    timeWaitedIn100us += newTimeWaited;
-    timedKbits += newKbits;
-  }
-
   return n;
 }
-
-void FdInStream::startTiming()
-{
-  timing = true;
-
-  // Carry over up to 1s worth of previous rate for smoothing.
-
-  if (timeWaitedIn100us > 10000) {
-    timedKbits = timedKbits * 10000 / timeWaitedIn100us;
-    timeWaitedIn100us = 10000;
-  }
-}
-
-void FdInStream::stopTiming()
-{
-  timing = false; 
-  if (timeWaitedIn100us < timedKbits/2)
-    timeWaitedIn100us = timedKbits/2; // upper limit 20Mbit/s
-}
-
-unsigned int FdInStream::kbitsPerSecond()
-{
-  // The following calculation will overflow 32-bit arithmetic if we have
-  // received more than about 50Mbytes (400Mbits) since we started timing, so
-  // it should be OK for a single RFB update.
-
-  return timedKbits * 10000 / timeWaitedIn100us;
-}

common/rdr/FdInStream.h

@@ -23,7 +23,7 @@
 #ifndef __RDR_FDINSTREAM_H__
 #define __RDR_FDINSTREAM_H__
 
-#include <rdr/InStream.h>
+#include <rdr/BufferedInStream.h>
 
 namespace rdr {
 
@@ -33,31 +33,21 @@ namespace rdr {
     virtual ~FdInStreamBlockCallback() {}
   };
 
-  class FdInStream : public InStream {
+  class FdInStream : public BufferedInStream {
 
   public:
 
-    FdInStream(int fd, int timeoutms=-1, size_t bufSize=0,
+    FdInStream(int fd, int timeoutms=-1, bool closeWhenDone_=false);
-               bool closeWhenDone_=false);
+    FdInStream(int fd, FdInStreamBlockCallback* blockCallback);
-    FdInStream(int fd, FdInStreamBlockCallback* blockCallback,
-               size_t bufSize=0);
     virtual ~FdInStream();
 
     void setTimeout(int timeoutms);
     void setBlockCallback(FdInStreamBlockCallback* blockCallback);
     int getFd() { return fd; }
-    size_t pos();
-    void readBytes(void* data, size_t length);
-
-    void startTiming();
-    void stopTiming();
-    unsigned int kbitsPerSecond();
-    unsigned int timeWaited() { return timeWaitedIn100us; }
-
-  protected:
-    size_t overrun(size_t itemSize, size_t nItems, bool wait);
 
   private:
+    virtual bool fillBuffer(size_t maxSize, bool wait);
+
     size_t readWithTimeoutOrCallback(void* buf, size_t len, bool wait=true);
 
     int fd;
@@ -65,11 +55,6 @@ namespace rdr {
     int timeoutms;
     FdInStreamBlockCallback* blockCallback;
 
-    bool timing;
-    unsigned int timeWaitedIn100us;
-    unsigned int timedKbits;
-
-    size_t bufSize;
     size_t offset;
     U8* start;
   };

common/rdr/FdOutStream.cxx

@@ -35,6 +35,8 @@
 #include <unistd.h>
 #include <sys/time.h>
 #include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
 #endif
 
 /* Old systems have select() in sys/time.h */
@@ -49,26 +51,19 @@
 
 using namespace rdr;
 
-enum { DEFAULT_BUF_SIZE = 16384 };
+FdOutStream::FdOutStream(int fd_, bool blocking_, int timeoutms_)
-
+  : fd(fd_), blocking(blocking_), timeoutms(timeoutms_)
-FdOutStream::FdOutStream(int fd_, bool blocking_, int timeoutms_, size_t bufSize_)
-  : fd(fd_), blocking(blocking_), timeoutms(timeoutms_),
-    bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
 {
-  ptr = start = sentUpTo = new U8[bufSize];
-  end = start + bufSize;
-
   gettimeofday(&lastWrite, NULL);
 }
 
 FdOutStream::~FdOutStream()
 {
   try {
-    blocking = true;
+    while (sentUpTo != ptr)
-    flush();
+      flushBuffer(true);
   } catch (Exception&) {
   }
-  delete [] start;
 }
 
 void FdOutStream::setTimeout(int timeoutms_) {
@@ -79,82 +74,29 @@ void FdOutStream::setBlocking(bool blocking_) {
   blocking = blocking_;
 }
 
-size_t FdOutStream::length()
-{
-  return offset + ptr - sentUpTo;
-}
-
-int FdOutStream::bufferUsage()
-{
-  return ptr - sentUpTo;
-}
-
 unsigned FdOutStream::getIdleTime()
 {
   return rfb::msSince(&lastWrite);
 }
 
-void FdOutStream::flush()
+bool FdOutStream::flushBuffer(bool wait)
 {
-  while (sentUpTo < ptr) {
+  size_t n = writeWithTimeout((const void*) sentUpTo,
-    size_t n = writeWithTimeout((const void*) sentUpTo,
+                              ptr - sentUpTo,
-                                ptr - sentUpTo,
+                              (blocking || wait)? timeoutms : 0);
-                                blocking? timeoutms : 0);
 
-    // Timeout?
+  // Timeout?
-    if (n == 0) {
+  if (n == 0) {
-      // If non-blocking then we're done here
+    // If non-blocking then we're done here
-      if (!blocking)
+    if (!blocking && !wait)
-        break;
+      return false;
 
-      throw TimedOut();
+    throw TimedOut();
-    }
-
-    sentUpTo += n;
-    offset += n;
   }
 
-   // Managed to flush everything?
+  sentUpTo += n;
-  if (sentUpTo == ptr)
-    ptr = sentUpTo = start;
-}
 
-
+  return true;
-size_t FdOutStream::overrun(size_t itemSize, size_t nItems)
-{
-  if (itemSize > bufSize)
-    throw Exception("FdOutStream overrun: max itemSize exceeded");
-
-  // First try to get rid of the data we have
-  flush();
-
-  // Still not enough space?
-  if (itemSize > (size_t)(end - ptr)) {
-    // Can we shuffle things around?
-    // (don't do this if it gains us less than 25%)
-    if (((size_t)(sentUpTo - start) > bufSize / 4) &&
-        (itemSize < bufSize - (ptr - sentUpTo))) {
-      memmove(start, sentUpTo, ptr - sentUpTo);
-      ptr = start + (ptr - sentUpTo);
-      sentUpTo = start;
-    } else {
-      // Have to get rid of more data, so turn off non-blocking
-      // for a bit...
-      bool realBlocking;
-
-      realBlocking = blocking;
-      blocking = true;
-      flush();
-      blocking = realBlocking;
-    }
-  }
-
-  size_t nAvail;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
 }
 
 //

common/rdr/FdOutStream.h

@@ -26,38 +26,29 @@
 
 #include <sys/time.h>
 
-#include <rdr/OutStream.h>
+#include <rdr/BufferedOutStream.h>
 
 namespace rdr {
 
-  class FdOutStream : public OutStream {
+  class FdOutStream : public BufferedOutStream {
 
   public:
 
-    FdOutStream(int fd, bool blocking=true, int timeoutms=-1, size_t bufSize=0);
+    FdOutStream(int fd, bool blocking=true, int timeoutms=-1);
     virtual ~FdOutStream();
 
     void setTimeout(int timeoutms);
     void setBlocking(bool blocking);
     int getFd() { return fd; }
 
-    void flush();
-    size_t length();
-
-    int bufferUsage();
-
     unsigned getIdleTime();
 
   private:
-    size_t overrun(size_t itemSize, size_t nItems);
+    virtual bool flushBuffer(bool wait);
     size_t writeWithTimeout(const void* data, size_t length, int timeoutms);
     int fd;
     bool blocking;
     int timeoutms;
-    size_t bufSize;
-    size_t offset;
-    U8* start;
-    U8* sentUpTo;
     struct timeval lastWrite;
   };
 

common/rdr/FileInStream.cxx

@@ -30,7 +30,6 @@ FileInStream::FileInStream(const char *fileName)
   file = fopen(fileName, "rb");
   if (!file)
     throw SystemException("fopen", errno);
-  ptr = end = b;
 }
 
 FileInStream::~FileInStream(void) {
@@ -40,50 +39,17 @@ FileInStream::~FileInStream(void) {
   }
 }
 
-void FileInStream::reset(void) {
+bool FileInStream::fillBuffer(size_t maxSize, bool wait)
-  if (!file)
-    throw Exception("File is not open");
-  if (fseek(file, 0, SEEK_SET) != 0)
-    throw SystemException("fseek", errno);
-  ptr = end = b;
-}
-
-size_t FileInStream::pos()
 {
-  if (!file)
+  size_t n = fread((U8 *)end, 1, maxSize, file);
-    throw Exception("File is not open");
+  if (n == 0) {
-
+    if (ferror(file))
-  return ftell(file) + ptr - b;
+      throw SystemException("fread", errno);
-}
+    if (feof(file))
-
+      throw EndOfStream();
-size_t FileInStream::overrun(size_t itemSize, size_t nItems, bool wait)
+    return false;
-{
-  if (itemSize > sizeof(b))
-    throw Exception("FileInStream overrun: max itemSize exceeded");
-
-  if (end - ptr != 0)
-    memmove(b, ptr, end - ptr);
-
-  end -= ptr - b;
-  ptr = b;
-
-
-  while ((size_t)(end - b) < itemSize) {
-    size_t n = fread((U8 *)end, b + sizeof(b) - end, 1, file);
-    if (n == 0) {
-      if (ferror(file))
-        throw SystemException("fread", errno);
-      if (feof(file))
-        throw EndOfStream();
-      return 0;
-    }
-    end += b + sizeof(b) - end;
   }
+  end += n;
 
-  size_t nAvail;
+  return true;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
 }

common/rdr/FileInStream.h

@@ -22,26 +22,21 @@
 
 #include <stdio.h>
 
-#include <rdr/InStream.h>
+#include <rdr/BufferedInStream.h>
 
 namespace rdr {
 
-  class FileInStream : public InStream {
+  class FileInStream : public BufferedInStream {
 
   public:
 
     FileInStream(const char *fileName);
     ~FileInStream(void);
 
-    void reset(void);
+  private:
-
+    virtual bool fillBuffer(size_t maxSize, bool wait);
-    size_t pos();
-
-  protected:
-    size_t overrun(size_t itemSize, size_t nItems, bool wait = true);
 
   private:
-    U8 b[131072];
     FILE *file;
   };
 

common/rdr/HexInStream.cxx

@@ -24,18 +24,14 @@
 
 using namespace rdr;
 
-const int DEFAULT_BUF_LEN = 16384;
-
 static inline int min(int a, int b) {return a<b ? a : b;}
 
-HexInStream::HexInStream(InStream& is, size_t bufSize_)
+HexInStream::HexInStream(InStream& is)
-: bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_LEN), offset(0), in_stream(is)
+: in_stream(is)
 {
-  ptr = end = start = new U8[bufSize];
 }
 
 HexInStream::~HexInStream() {
-  delete [] start;
 }
 
 
@@ -76,44 +72,24 @@ decodeError:
 }
 
 
-size_t HexInStream::pos() {
+bool HexInStream::fillBuffer(size_t maxSize, bool wait) {
-  return offset + ptr - start;
+  if (!in_stream.check(2, wait))
-}
+    return false;
 
-size_t HexInStream::overrun(size_t itemSize, size_t nItems, bool wait) {
+  const U8* iptr = in_stream.getptr();
-  if (itemSize > bufSize)
+  const U8* eptr = in_stream.getend();
-    throw Exception("HexInStream overrun: max itemSize exceeded");
+  size_t length = min((eptr - iptr)/2, maxSize);
 
-  if (end - ptr != 0)
+  U8* optr = (U8*) end;
-    memmove(start, ptr, end - ptr);
+  for (size_t i=0; i<length; i++) {
-
+    int v = 0;
-  end -= ptr - start;
+    readHexAndShift(iptr[i*2], &v);
-  offset += ptr - start;
+    readHexAndShift(iptr[i*2+1], &v);
-  ptr = start;
+    optr[i] = v;
-
-  while ((size_t)(end - ptr) < itemSize) {
-    size_t n = in_stream.check(2, 1, wait);
-    if (n == 0) return 0;
-    const U8* iptr = in_stream.getptr();
-    const U8* eptr = in_stream.getend();
-    size_t length = min((eptr - iptr)/2, start + bufSize - end);
-
-    U8* optr = (U8*) end;
-    for (size_t i=0; i<length; i++) {
-      int v = 0;
-      readHexAndShift(iptr[i*2], &v);
-      readHexAndShift(iptr[i*2+1], &v);
-      optr[i] = v;
-    }
-
-    in_stream.setptr(iptr + length*2);
-    end += length;
   }
 
-  size_t nAvail;
+  in_stream.setptr(iptr + length*2);
-  nAvail = (end - ptr) / itemSize;
+  end += length;
-  if (nAvail < nItems)
-    return nAvail;
 
-  return nItems;
+  return true;
 }

common/rdr/HexInStream.h

@@ -19,29 +19,23 @@
 #ifndef __RDR_HEX_INSTREAM_H__
 #define __RDR_HEX_INSTREAM_H__
 
-#include <rdr/InStream.h>
+#include <rdr/BufferedInStream.h>
 
 namespace rdr {
 
-  class HexInStream : public InStream {
+  class HexInStream : public BufferedInStream {
   public:
 
-    HexInStream(InStream& is, size_t bufSize=0);
+    HexInStream(InStream& is);
     virtual ~HexInStream();
 
-    size_t pos();
-
     static bool readHexAndShift(char c, int* v);
     static bool hexStrToBin(const char* s, char** data, size_t* length);
 
-  protected:
+  private:
-    size_t overrun(size_t itemSize, size_t nItems, bool wait);
+    virtual bool fillBuffer(size_t maxSize, bool wait);
 
   private:
-    size_t bufSize;
-    U8* start;
-    size_t offset;
-
     InStream& in_stream;
   };
 

common/rdr/HexOutStream.cxx

@@ -25,8 +25,8 @@ const int DEFAULT_BUF_LEN = 16384;
 
 static inline size_t min(size_t a, size_t b) {return a<b ? a : b;}
 
-HexOutStream::HexOutStream(OutStream& os, size_t buflen)
+HexOutStream::HexOutStream(OutStream& os)
-: out_stream(os), offset(0), bufSize(buflen ? buflen : DEFAULT_BUF_LEN)
+  : out_stream(os), offset(0), bufSize(DEFAULT_BUF_LEN)
 {
   if (bufSize % 2)
     bufSize--;
@@ -95,18 +95,10 @@ HexOutStream::flush() {
   out_stream.flush();
 }
 
-size_t
+void HexOutStream::overrun(size_t needed) {
-HexOutStream::overrun(size_t itemSize, size_t nItems) {
+  if (needed > bufSize)
-  if (itemSize > bufSize)
+    throw Exception("HexOutStream overrun: buffer size exceeded");
-    throw Exception("HexOutStream overrun: max itemSize exceeded");
 
   writeBuffer();
-
-  size_t nAvail;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
 }
 

common/rdr/HexOutStream.h

@@ -26,7 +26,7 @@ namespace rdr {
   class HexOutStream : public OutStream {
   public:
 
-    HexOutStream(OutStream& os, size_t buflen=0);
+    HexOutStream(OutStream& os);
     virtual ~HexOutStream();
 
     void flush();
@@ -37,7 +37,7 @@ namespace rdr {
 
   private:
     void writeBuffer();
-    size_t overrun(size_t itemSize, size_t nItems);
+    virtual void overrun(size_t needed);
 
     OutStream& out_stream;
 

common/rdr/InStream.h

@@ -35,28 +35,25 @@ namespace rdr {
 
     virtual ~InStream() {}
 
-    // check() ensures there is buffer data for at least one item of size
+    // avail() returns the number of bytes that are currenctly directly
-    // itemSize bytes.  Returns the number of items in the buffer (up to a
+    // available from the stream.
-    // maximum of nItems).  If wait is false, then instead of blocking to wait
-    // for the bytes, zero is returned if the bytes are not immediately
-    // available. If itemSize or nItems is zero, check() will return zero.
 
-    inline size_t check(size_t itemSize, size_t nItems=1, bool wait=true)
+    inline size_t avail()
     {
-      size_t nAvail;
+      return end - ptr;
+    }
 
-      if (itemSize == 0 || nItems == 0)
+    // check() ensures there is buffer data for at least needed bytes. Returns
-        return 0;
+    // true once the data is available. If wait is false, then instead of
+    // blocking to wait for the bytes, false is returned if the bytes are not
+    // immediately available.
 
-      if (itemSize > (size_t)(end - ptr))
+    inline size_t check(size_t needed, bool wait=true)
-        return overrun(itemSize, nItems, wait);
+    {
+      if (needed > avail())
+        return overrun(needed, wait);
 
-      // itemSize cannot be zero at this point
+      return true;
-      nAvail = (end - ptr) / itemSize;
-      if (nAvail < nItems)
-        return nAvail;
-
-      return nItems;
     }
 
     // checkNoWait() tries to make sure that the given number of bytes can
@@ -64,10 +61,7 @@ namespace rdr {
     // otherwise.  The length must be "small" (less than the buffer size).
     // If length is zero, checkNoWait() will return true.
 
-    inline bool checkNoWait(size_t length)
+    inline bool checkNoWait(size_t length) { return check(length, false); }
-    {
-      return length == 0 || check(length, 1, false) > 0;
-    }
 
     // readU/SN() methods read unsigned and signed N-bit integers.
 
@@ -138,13 +132,12 @@ namespace rdr {
   private:
 
     // overrun() is implemented by a derived class to cope with buffer overrun.
-    // It ensures there are at least itemSize bytes of buffer data.  Returns
+    // It ensures there are at least needed bytes of buffer data. Returns true
-    // the number of items in the buffer (up to a maximum of nItems).  itemSize
+    // once the data is available. If wait is false, then instead of blocking
-    // is supposed to be "small" (a few bytes).  If wait is false, then
+    // to wait for the bytes, false is returned if the bytes are not
-    // instead of blocking to wait for the bytes, zero is returned if the bytes
+    // immediately available.
-    // are not immediately available.
 
-    virtual size_t overrun(size_t itemSize, size_t nItems, bool wait=true) = 0;
+    virtual bool overrun(size_t needed, bool wait=true) = 0;
 
   protected:
 

common/rdr/MemInStream.h

@@ -53,7 +53,7 @@ namespace rdr {
 
   private:
 
-    size_t overrun(size_t itemSize, size_t nItems, bool wait) { throw EndOfStream(); }
+    bool overrun(size_t needed, bool wait) { throw EndOfStream(); }
     const U8* start;
     bool deleteWhenDone;
   };

common/rdr/MemOutStream.h

@@ -41,12 +41,6 @@ namespace rdr {
       delete [] start;
     }
 
-    void writeBytes(const void* data, size_t length) {
-      check(length);
-      memcpy(ptr, data, length);
-      ptr += length;
-    }
-
     size_t length() { return ptr - start; }
     void clear() { ptr = start; };
     void clearAndZero() { memset(start, 0, ptr-start); clear(); }
@@ -58,11 +52,11 @@ namespace rdr {
 
   protected:
 
-    // overrun() either doubles the buffer or adds enough space for nItems of
+    // overrun() either doubles the buffer or adds enough space for
-    // size itemSize bytes.
+    // needed bytes.
 
-    size_t overrun(size_t itemSize, size_t nItems) {
+    virtual void overrun(size_t needed) {
-      size_t len = ptr - start + itemSize * nItems;
+      size_t len = ptr - start + needed;
       if (len < (size_t)(end - start) * 2)
         len = (end - start) * 2;
 
@@ -75,8 +69,6 @@ namespace rdr {
       delete [] start;
       start = newStart;
       end = newStart + len;
-
-      return nItems;
     }
 
     U8* start;

common/rdr/OutStream.h

@@ -40,22 +40,20 @@ namespace rdr {
 
     virtual ~OutStream() {}
 
-    // check() ensures there is buffer space for at least one item of size
+    // avail() returns the number of bytes that currently be written to the
-    // itemSize bytes.  Returns the number of items which fit (up to a maximum
+    // stream without any risk of blocking.
-    // of nItems).
 
-    inline size_t check(size_t itemSize, size_t nItems=1)
+    inline size_t avail()
     {
-      size_t nAvail;
+      return end - ptr;
+    }
 
-      if (itemSize > (size_t)(end - ptr))
+    // check() ensures there is buffer space for at least needed bytes.
-        return overrun(itemSize, nItems);
 
-      nAvail = (end - ptr) / itemSize;
+    inline void check(size_t needed)
-      if (nAvail < nItems)
+    {
-        return nAvail;
+      if (needed > avail())
-
+        overrun(needed);
-      return nItems;
     }
 
     // writeU/SN() methods write unsigned and signed N-bit integers.
@@ -83,19 +81,14 @@ namespace rdr {
       while (bytes-- > 0) writeU8(0);
     }
 
-    inline void skip(size_t bytes) {
-      while (bytes > 0) {
-        size_t n = check(1, bytes);
-        ptr += n;
-        bytes -= n;
-      }
-    }
-
     // writeBytes() writes an exact number of bytes.
 
     void writeBytes(const void* data, size_t length) {
       while (length > 0) {
-        size_t n = check(1, length);
+        check(1);
+        size_t n = length;
+        if (length > avail())
+          n = avail();
         memcpy(ptr, data, n);
         ptr += n;
         data = (U8*)data + n;
@@ -107,7 +100,10 @@ namespace rdr {
 
     void copyBytes(InStream* is, size_t length) {
       while (length > 0) {
-        size_t n = check(1, length);
+        check(1);
+        size_t n = length;
+        if (length > avail())
+          n = avail();
         is->readBytes(ptr, n);
         ptr += n;
         length -= n;
@@ -143,11 +139,9 @@ namespace rdr {
   private:
 
     // overrun() is implemented by a derived class to cope with buffer overrun.
-    // It ensures there are at least itemSize bytes of buffer space.  Returns
+    // It ensures there are at least needed bytes of buffer space.
-    // the number of items which fit (up to a maximum of nItems).  itemSize is
-    // supposed to be "small" (a few bytes).
 
-    virtual size_t overrun(size_t itemSize, size_t nItems) = 0;
+    virtual void overrun(size_t needed) = 0;
 
   protected:
 

common/rdr/RandomStream.cxx

@@ -32,15 +32,10 @@
 
 using namespace rdr;
 
-const size_t DEFAULT_BUF_LEN = 256;
-
 unsigned int RandomStream::seed;
 
 RandomStream::RandomStream()
-  : offset(0)
 {
-  ptr = end = start = new U8[DEFAULT_BUF_LEN];
-
 #ifdef RFB_HAVE_WINCRYPT
   provider = 0;
   if (!CryptAcquireContext(&provider, 0, 0, PROV_RSA_FULL, 0)) {
@@ -72,8 +67,6 @@ RandomStream::RandomStream()
 }
 
 RandomStream::~RandomStream() {
-  delete [] start;
-
 #ifdef RFB_HAVE_WINCRYPT
   if (provider)
     CryptReleaseContext(provider, 0);
@@ -83,50 +76,29 @@ RandomStream::~RandomStream() {
 #endif
 }
 
-size_t RandomStream::pos() {
+bool RandomStream::fillBuffer(size_t maxSize, bool wait) {
-  return offset + ptr - start;
-}
-
-size_t RandomStream::overrun(size_t itemSize, size_t nItems, bool wait) {
-  if (itemSize > DEFAULT_BUF_LEN)
-    throw Exception("RandomStream overrun: max itemSize exceeded");
-
-  if (end - ptr != 0)
-    memmove(start, ptr, end - ptr);
-
-  end -= ptr - start;
-  offset += ptr - start;
-  ptr = start;
-
-  size_t length = start + DEFAULT_BUF_LEN - end;
-
 #ifdef RFB_HAVE_WINCRYPT
   if (provider) {
-    if (!CryptGenRandom(provider, length, (U8*)end))
+    if (!CryptGenRandom(provider, maxSize, (U8*)end))
       throw rdr::SystemException("unable to CryptGenRandom", GetLastError());
-    end += length;
+    end += maxSize;
   } else {
 #else
 #ifndef WIN32
   if (fp) {
-    size_t n = fread((U8*)end, length, 1, fp);
+    size_t n = fread((U8*)end, 1, maxSize, fp);
-    if (n != 1)
+    if (n <= 0)
       throw rdr::SystemException("reading /dev/urandom or /dev/random failed",
                                  errno);
-    end += length;
+    end += n;
   } else {
 #else
   {
 #endif
 #endif
-    for (size_t i=0; i<length; i++)
+    for (size_t i=0; i<maxSize; i++)
       *(U8*)end++ = (int) (256.0*rand()/(RAND_MAX+1.0));
   }
 
-  size_t nAvail;
+  return true;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
 }

common/rdr/RandomStream.h

@@ -20,7 +20,7 @@
 #define __RDR_RANDOMSTREAM_H__
 
 #include <stdio.h>
-#include <rdr/InStream.h>
+#include <rdr/BufferedInStream.h>
 
 #ifdef WIN32
 #include <windows.h>
@@ -32,22 +32,17 @@
 
 namespace rdr {
 
-  class RandomStream : public InStream {
+  class RandomStream : public BufferedInStream {
 
   public:
 
     RandomStream();
     virtual ~RandomStream();
 
-    size_t pos();
+  private:
-
+    virtual bool fillBuffer(size_t maxSize, bool wait);
-  protected:
-    size_t overrun(size_t itemSize, size_t nItems, bool wait);
 
   private:
-    U8* start;
-    size_t offset;
-
     static unsigned int seed;
 #ifdef RFB_HAVE_WINCRYPT
     HCRYPTPROV provider;

common/rdr/TLSInStream.cxx

@@ -30,21 +30,19 @@
 #ifdef HAVE_GNUTLS 
 using namespace rdr;
 
-enum { DEFAULT_BUF_SIZE = 16384 };
-
 ssize_t TLSInStream::pull(gnutls_transport_ptr_t str, void* data, size_t size)
 {
   TLSInStream* self= (TLSInStream*) str;
   InStream *in = self->in;
 
   try {
-    if (!in->check(1, 1, false)) {
+    if (!in->check(1, false)) {
       gnutls_transport_set_errno(self->session, EAGAIN);
       return -1;
     }
 
-    if ((size_t)(in->getend() - in->getptr()) < size)
+    if (in->avail() < size)
-      size = in->getend() - in->getptr();
+      size = in->avail();
   
     in->readBytes(data, size);
 
@@ -57,12 +55,10 @@ ssize_t TLSInStream::pull(gnutls_transport_ptr_t str, void* data, size_t size)
 }
 
 TLSInStream::TLSInStream(InStream* _in, gnutls_session_t _session)
-  : session(_session), in(_in), bufSize(DEFAULT_BUF_SIZE), offset(0)
+  : session(_session), in(_in)
 {
   gnutls_transport_ptr_t recv, send;
 
-  ptr = end = start = new U8[bufSize];
-
   gnutls_transport_set_pull_function(session, pull);
   gnutls_transport_get_ptr2(session, &recv, &send);
   gnutls_transport_set_ptr2(session, this, send);
@@ -71,40 +67,16 @@ TLSInStream::TLSInStream(InStream* _in, gnutls_session_t _session)
 TLSInStream::~TLSInStream()
 {
   gnutls_transport_set_pull_function(session, NULL);
-
-  delete[] start;
 }
 
-size_t TLSInStream::pos()
+bool TLSInStream::fillBuffer(size_t maxSize, bool wait)
 {
-  return offset + ptr - start;
+  size_t n = readTLS((U8*) end, maxSize, wait);
-}
+  if (!wait && n == 0)
+    return false;
+  end += n;
 
-size_t TLSInStream::overrun(size_t itemSize, size_t nItems, bool wait)
+  return true;
-{
-  if (itemSize > bufSize)
-    throw Exception("TLSInStream overrun: max itemSize exceeded");
-
-  if (end - ptr != 0)
-    memmove(start, ptr, end - ptr);
-
-  offset += ptr - start;
-  end -= ptr - start;
-  ptr = start;
-
-  while ((size_t)(end - start) < itemSize) {
-    size_t n = readTLS((U8*) end, start + bufSize - end, wait);
-    if (!wait && n == 0)
-      return 0;
-    end += n;
-  }
-
-  size_t nAvail;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
 }
 
 size_t TLSInStream::readTLS(U8* buf, size_t len, bool wait)
@@ -112,7 +84,7 @@ size_t TLSInStream::readTLS(U8* buf, size_t len, bool wait)
   int n;
 
   if (gnutls_record_check_pending(session) == 0) {
-    n = in->check(1, 1, wait);
+    n = in->check(1, wait);
     if (n == 0)
       return 0;
   }

common/rdr/TLSInStream.h

@@ -27,27 +27,22 @@
 #ifdef HAVE_GNUTLS
 
 #include <gnutls/gnutls.h>
-#include <rdr/InStream.h>
+#include <rdr/BufferedInStream.h>
 
 namespace rdr {
 
-  class TLSInStream : public InStream {
+  class TLSInStream : public BufferedInStream {
   public:
     TLSInStream(InStream* in, gnutls_session_t session);
     virtual ~TLSInStream();
 
-    size_t pos();
-
   private:
-    size_t overrun(size_t itemSize, size_t nItems, bool wait);
+    virtual bool fillBuffer(size_t maxSize, bool wait);
     size_t readTLS(U8* buf, size_t len, bool wait);
     static ssize_t pull(gnutls_transport_ptr_t str, void* data, size_t size);
 
     gnutls_session_t session;
     InStream* in;
-    size_t bufSize;
-    size_t offset;
-    U8* start;
   };
 };
 

common/rdr/TLSOutStream.cxx

@@ -93,19 +93,12 @@ void TLSOutStream::flush()
   out->flush();
 }
 
-size_t TLSOutStream::overrun(size_t itemSize, size_t nItems)
+void TLSOutStream::overrun(size_t needed)
 {
-  if (itemSize > bufSize)
+  if (needed > bufSize)
-    throw Exception("TLSOutStream overrun: max itemSize exceeded");
+    throw Exception("TLSOutStream overrun: buffer size exceeded");
 
   flush();
-
-  size_t nAvail;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
 }
 
 size_t TLSOutStream::writeTLS(const U8* data, size_t length)

common/rdr/TLSOutStream.h

@@ -39,7 +39,7 @@ namespace rdr {
     size_t length();
 
   protected:
-    size_t overrun(size_t itemSize, size_t nItems);
+    virtual void overrun(size_t needed);
 
   private:
     size_t writeTLS(const U8* data, size_t length);

common/rdr/ZlibInStream.cxx

@@ -24,41 +24,30 @@
 
 using namespace rdr;
 
-enum { DEFAULT_BUF_SIZE = 16384 };
+ZlibInStream::ZlibInStream()
-
+  : underlying(0), zs(NULL), bytesIn(0)
-ZlibInStream::ZlibInStream(size_t bufSize_)
-  : underlying(0), bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0),
-    zs(NULL), bytesIn(0)
 {
-  ptr = end = start = new U8[bufSize];
   init();
 }
 
 ZlibInStream::~ZlibInStream()
 {
   deinit();
-  delete [] start;
 }
 
 void ZlibInStream::setUnderlying(InStream* is, size_t bytesIn_)
 {
   underlying = is;
   bytesIn = bytesIn_;
-  ptr = end = start;
+  skip(avail());
-}
-
-size_t ZlibInStream::pos()
-{
-  return offset + ptr - start;
 }
 
 void ZlibInStream::flushUnderlying()
 {
-  ptr = end = start;
-
   while (bytesIn > 0) {
-    decompress(true);
+    if (!check(1))
-    end = start; // throw away any data
+      throw Exception("ZlibInStream: failed to flush remaining stream data");
+    skip(avail());
   }
 
   setUnderlying(NULL, 0);
@@ -96,47 +85,18 @@ void ZlibInStream::deinit()
   zs = NULL;
 }
 
-size_t ZlibInStream::overrun(size_t itemSize, size_t nItems, bool wait)
+bool ZlibInStream::fillBuffer(size_t maxSize, bool wait)
-{
-  if (itemSize > bufSize)
-    throw Exception("ZlibInStream overrun: max itemSize exceeded");
-
-  if (end - ptr != 0)
-    memmove(start, ptr, end - ptr);
-
-  offset += ptr - start;
-  end -= ptr - start;
-  ptr = start;
-
-  while ((size_t)(end - ptr) < itemSize) {
-    if (!decompress(wait))
-      return 0;
-  }
-
-  size_t nAvail;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
-}
-
-// decompress() calls the decompressor once.  Note that this won't necessarily
-// generate any output data - it may just consume some input data.  Returns
-// false if wait is false and we would block on the underlying stream.
-
-bool ZlibInStream::decompress(bool wait)
 {
   if (!underlying)
     throw Exception("ZlibInStream overrun: no underlying stream");
 
   zs->next_out = (U8*)end;
-  zs->avail_out = start + bufSize - end;
+  zs->avail_out = maxSize;
 
-  size_t n = underlying->check(1, 1, wait);
+  size_t n = underlying->check(1, wait);
   if (n == 0) return false;
   zs->next_in = (U8*)underlying->getptr();
-  zs->avail_in = underlying->getend() - underlying->getptr();
+  zs->avail_in = underlying->avail();
   if (zs->avail_in > bytesIn)
     zs->avail_in = bytesIn;
 

common/rdr/ZlibInStream.h

@@ -24,38 +24,32 @@
 #ifndef __RDR_ZLIBINSTREAM_H__
 #define __RDR_ZLIBINSTREAM_H__
 
-#include <rdr/InStream.h>
+#include <rdr/BufferedInStream.h>
 
 struct z_stream_s;
 
 namespace rdr {
 
-  class ZlibInStream : public InStream {
+  class ZlibInStream : public BufferedInStream {
 
   public:
-
+    ZlibInStream();
-    ZlibInStream(size_t bufSize=0);
     virtual ~ZlibInStream();
 
     void setUnderlying(InStream* is, size_t bytesIn);
     void flushUnderlying();
-    size_t pos();
     void reset();
 
   private:
-
     void init();
     void deinit();
 
-    size_t overrun(size_t itemSize, size_t nItems, bool wait);
+    virtual bool fillBuffer(size_t maxSize, bool wait);
-    bool decompress(bool wait);
 
+  private:
     InStream* underlying;
-    size_t bufSize;
-    size_t offset;
     z_stream_s* zs;
     size_t bytesIn;
-    U8* start;
   };
 
 } // end of namespace rdr

common/rdr/ZlibOutStream.cxx

@@ -30,9 +30,9 @@ using namespace rdr;
 
 enum { DEFAULT_BUF_SIZE = 16384 };
 
-ZlibOutStream::ZlibOutStream(OutStream* os, size_t bufSize_, int compressLevel)
+ZlibOutStream::ZlibOutStream(OutStream* os, int compressLevel)
   : underlying(os), compressionLevel(compressLevel), newLevel(compressLevel),
-    bufSize(bufSize_ ? bufSize_ : DEFAULT_BUF_SIZE), offset(0)
+    bufSize(DEFAULT_BUF_SIZE), offset(0)
 {
   zs = new z_stream;
   zs->zalloc    = Z_NULL;
@@ -95,18 +95,18 @@ void ZlibOutStream::flush()
   ptr = start;
 }
 
-size_t ZlibOutStream::overrun(size_t itemSize, size_t nItems)
+void ZlibOutStream::overrun(size_t needed)
 {
 #ifdef ZLIBOUT_DEBUG
   fprintf(stderr,"zos overrun\n");
 #endif
 
-  if (itemSize > bufSize)
+  if (needed > bufSize)
-    throw Exception("ZlibOutStream overrun: max itemSize exceeded");
+    throw Exception("ZlibOutStream overrun: buffer size exceeded");
 
   checkCompressionLevel();
 
-  while ((size_t)(end - ptr) < itemSize) {
+  while (avail() < needed) {
     zs->next_in = start;
     zs->avail_in = ptr - start;
 
@@ -126,13 +126,6 @@ size_t ZlibOutStream::overrun(size_t itemSize, size_t nItems)
       ptr -= zs->next_in - start;
     }
   }
-
-  size_t nAvail;
-  nAvail = (end - ptr) / itemSize;
-  if (nAvail < nItems)
-    return nAvail;
-
-  return nItems;
 }
 
 void ZlibOutStream::deflate(int flush)
@@ -148,7 +141,7 @@ void ZlibOutStream::deflate(int flush)
   do {
     underlying->check(1);
     zs->next_out = underlying->getptr();
-    zs->avail_out = underlying->getend() - underlying->getptr();
+    zs->avail_out = underlying->avail();
 
 #ifdef ZLIBOUT_DEBUG
     fprintf(stderr,"zos: calling deflate, avail_in %d, avail_out %d\n",

common/rdr/ZlibOutStream.h

@@ -35,7 +35,7 @@ namespace rdr {
 
   public:
 
-    ZlibOutStream(OutStream* os=0, size_t bufSize=0, int compressionLevel=-1);
+    ZlibOutStream(OutStream* os=0, int compressionLevel=-1);
     virtual ~ZlibOutStream();
 
     void setUnderlying(OutStream* os);
@@ -45,7 +45,7 @@ namespace rdr {
 
   private:
 
-    size_t overrun(size_t itemSize, size_t nItems);
+    virtual void overrun(size_t needed);
     void deflate(int flush);
     void checkCompressionLevel();
 

common/rfb/CConnection.cxx

@@ -20,6 +20,7 @@
 #include <string.h>
 
 #include <rfb/Exception.h>
+#include <rfb/clipboardTypes.h>
 #include <rfb/fenceTypes.h>
 #include <rfb/CMsgReader.h>
 #include <rfb/CMsgWriter.h>
@@ -42,7 +43,8 @@ CConnection::CConnection()
   : csecurity(0), is(0), os(0), reader_(0), writer_(0),
     shared(false),
     state_(RFBSTATE_UNINITIALISED), useProtocol3_3(false),
-    framebuffer(NULL), decoder(this)
+    framebuffer(NULL), decoder(this),
+    serverClipboard(NULL), hasLocalClipboard(false)
 {
 }
 
@@ -54,6 +56,7 @@ CConnection::~CConnection()
   reader_ = 0;
   delete writer_;
   writer_ = 0;
+  strFree(serverClipboard);
 }
 
 void CConnection::setStreams(rdr::InStream* is_, rdr::OutStream* os_)
@@ -342,6 +345,79 @@ void CConnection::dataRect(const Rect& r, int encoding)
   decoder.decodeRect(r, encoding, framebuffer);
 }
 
+void CConnection::serverCutText(const char* str)
+{
+  hasLocalClipboard = false;
+
+  strFree(serverClipboard);
+  serverClipboard = NULL;
+
+  serverClipboard = latin1ToUTF8(str);
+
+  handleClipboardAnnounce(true);
+}
+
+void CConnection::handleClipboardCaps(rdr::U32 flags,
+                                      const rdr::U32* lengths)
+{
+  rdr::U32 sizes[] = { 0 };
+
+  CMsgHandler::handleClipboardCaps(flags, lengths);
+
+  writer()->writeClipboardCaps(rfb::clipboardUTF8 |
+                               rfb::clipboardRequest |
+                               rfb::clipboardPeek |
+                               rfb::clipboardNotify |
+                               rfb::clipboardProvide,
+                               sizes);
+}
+
+void CConnection::handleClipboardRequest(rdr::U32 flags)
+{
+  if (!(flags & rfb::clipboardUTF8))
+    return;
+  if (!hasLocalClipboard)
+    return;
+  handleClipboardRequest();
+}
+
+void CConnection::handleClipboardPeek(rdr::U32 flags)
+{
+  if (!hasLocalClipboard)
+    return;
+  if (cp.clipboardFlags() & rfb::clipboardNotify)
+    writer()->writeClipboardNotify(rfb::clipboardUTF8);
+}
+
+void CConnection::handleClipboardNotify(rdr::U32 flags)
+{
+  strFree(serverClipboard);
+  serverClipboard = NULL;
+
+  if (flags & rfb::clipboardUTF8) {
+    hasLocalClipboard = false;
+    handleClipboardAnnounce(true);
+  } else {
+    handleClipboardAnnounce(false);
+  }
+}
+
+void CConnection::handleClipboardProvide(rdr::U32 flags,
+                                         const size_t* lengths,
+                                         const rdr::U8* const* data)
+{
+  if (!(flags & rfb::clipboardUTF8))
+    return;
+
+  strFree(serverClipboard);
+  serverClipboard = NULL;
+
+  serverClipboard = convertLF((const char*)data[0], lengths[0]);
+
+  // FIXME: Should probably verify that this data was actually requested
+  handleClipboardData(serverClipboard);
+}
+
 void CConnection::authSuccess()
 {
 }
@@ -364,3 +440,53 @@ void CConnection::fence(rdr::U32 flags, unsigned len, const char data[])
 
   writer()->writeFence(flags, len, data);
 }
+
+void CConnection::handleClipboardRequest()
+{
+}
+
+void CConnection::handleClipboardAnnounce(bool available)
+{
+}
+
+void CConnection::handleClipboardData(const char* data)
+{
+}
+
+void CConnection::requestClipboard()
+{
+  if (serverClipboard != NULL) {
+    handleClipboardData(serverClipboard);
+    return;
+  }
+
+  if (cp.clipboardFlags() & rfb::clipboardRequest)
+    writer()->writeClipboardRequest(rfb::clipboardUTF8);
+}
+
+void CConnection::announceClipboard(bool available)
+{
+  hasLocalClipboard = available;
+
+  if (cp.clipboardFlags() & rfb::clipboardNotify)
+    writer()->writeClipboardNotify(available ? rfb::clipboardUTF8 : 0);
+  else {
+    if (available)
+      handleClipboardRequest();
+  }
+}
+
+void CConnection::sendClipboardData(const char* data)
+{
+  if (cp.clipboardFlags() & rfb::clipboardProvide) {
+    CharArray filtered(convertCRLF(data));
+    size_t sizes[1] = { strlen(filtered.buf) + 1 };
+    const rdr::U8* data[1] = { (const rdr::U8*)filtered.buf };
+    writer()->writeClipboardProvide(rfb::clipboardUTF8, sizes, data);
+  } else {
+    CharArray latin1(utf8ToLatin1(data));
+
+    writer()->writeClientCutText(latin1.buf, strlen(latin1.buf));
+  }
+}
+

common/rfb/CConnection.h

@@ -107,6 +107,17 @@ namespace rfb {
     virtual void framebufferUpdateEnd();
     virtual void dataRect(const Rect& r, int encoding);
 
+    virtual void serverCutText(const char* str);
+
+    virtual void handleClipboardCaps(rdr::U32 flags,
+                                     const rdr::U32* lengths);
+    virtual void handleClipboardRequest(rdr::U32 flags);
+    virtual void handleClipboardPeek(rdr::U32 flags);
+    virtual void handleClipboardNotify(rdr::U32 flags);
+    virtual void handleClipboardProvide(rdr::U32 flags,
+                                        const size_t* lengths,
+                                        const rdr::U8* const* data);
+
 
     // Methods to be overridden in a derived class
 
@@ -121,9 +132,43 @@ namespace rfb {
     // derived class must call on to CConnection::serverInit().
     virtual void serverInit();
 
+    // handleClipboardRequest() is called whenever the server requests
+    // the client to send over its clipboard data. It will only be
+    // called after the client has first announced a clipboard change
+    // via announceClipboard().
+    virtual void handleClipboardRequest();
+
+    // handleClipboardAnnounce() is called to indicate a change in the
+    // clipboard on the server. Call requestClipboard() to access the
+    // actual data.
+    virtual void handleClipboardAnnounce(bool available);
+
+    // handleClipboardData() is called when the server has sent over
+    // the clipboard data as a result of a previous call to
+    // requestClipboard(). Note that this function might never be
+    // called if the clipboard data was no longer available when the
+    // server received the request.
+    virtual void handleClipboardData(const char* data);
+
 
     // Other methods
 
+    // requestClipboard() will result in a request to the server to
+    // transfer its clipboard data. A call to handleClipboardData()
+    // will be made once the data is available.
+    virtual void requestClipboard();
+
+    // announceClipboard() informs the server of changes to the
+    // clipboard on the client. The server may later request the
+    // clipboard data via handleClipboardRequest().
+    virtual void announceClipboard(bool available);
+
+    // sendClipboardData() transfers the clipboard data to the server
+    // and should be called whenever the server has requested the
+    // clipboard via handleClipboardRequest().
+    virtual void sendClipboardData(const char* data);
+
+
     CMsgReader* reader() { return reader_; }
     CMsgWriter* writer() { return writer_; }
 
@@ -190,6 +235,9 @@ namespace rfb {
 
     ModifiablePixelBuffer* framebuffer;
     DecodeManager decoder;
+
+    char* serverClipboard;
+    bool hasLocalClipboard;
   };
 }
 #endif

common/rfb/CMakeLists.txt

@@ -48,6 +48,7 @@ set(RFB_SOURCES
   Security.cxx
   SecurityServer.cxx
   SecurityClient.cxx
+  SelfBench.cxx
   SSecurityPlain.cxx
   SSecurityStack.cxx
   SSecurityVncAuth.cxx
@@ -63,6 +64,7 @@ set(RFB_SOURCES
   VNCServerST.cxx
   ZRLEEncoder.cxx
   ZRLEDecoder.cxx
+  cpuid.cxx
   encodings.cxx
   util.cxx
   xxhash.c)
@@ -96,6 +98,27 @@ if(GNUTLS_FOUND)
   )
 endif()
 
+# SSE2
+
+set(SSE2_SOURCES
+  scale_sse2.cxx)
+
+set(SCALE_DUMMY_SOURCES
+  scale_dummy.cxx)
+
+if(COMPILER_SUPPORTS_SSE2)
+  set_source_files_properties(${SSE2_SOURCES} PROPERTIES COMPILE_FLAGS ${COMPILE_FLAGS} -msse2)
+  set(RFB_SOURCES
+    ${RFB_SOURCES}
+    ${SSE2_SOURCES}
+  )
+else()
+  set(RFB_SOURCES
+    ${RFB_SOURCES}
+    ${SCALE_DUMMY_SOURCES}
+  )
+endif()
+
 add_library(rfb STATIC ${RFB_SOURCES})
 
 target_link_libraries(rfb ${RFB_LIBRARIES})

common/rfb/CMsgHandler.cxx

@@ -92,3 +92,26 @@ void CMsgHandler::setLEDState(unsigned int state)
 {
   cp.setLEDState(state);
 }
+
+void CMsgHandler::handleClipboardCaps(rdr::U32 flags, const rdr::U32* lengths)
+{
+  cp.setClipboardCaps(flags, lengths);
+}
+
+void CMsgHandler::handleClipboardRequest(rdr::U32 flags)
+{
+}
+
+void CMsgHandler::handleClipboardPeek(rdr::U32 flags)
+{
+}
+
+void CMsgHandler::handleClipboardNotify(rdr::U32 flags)
+{
+}
+
+void CMsgHandler::handleClipboardProvide(rdr::U32 flags,
+                                         const size_t* lengths,
+                                         const rdr::U8* const* data)
+{
+}

common/rfb/CMsgHandler.h

@@ -50,7 +50,7 @@ namespace rfb {
                                         int w, int h,
                                         const ScreenSet& layout);
     virtual void setCursor(int width, int height, const Point& hotspot,
-                           const rdr::U8* data) = 0;
+                           const rdr::U8* data, const bool resizing = false) = 0;
     virtual void setPixelFormat(const PixelFormat& pf);
     virtual void setName(const char* name);
     virtual void fence(rdr::U32 flags, unsigned len, const char data[]);
@@ -72,6 +72,15 @@ namespace rfb {
 
     virtual void setLEDState(unsigned int state);
 
+    virtual void handleClipboardCaps(rdr::U32 flags,
+                                     const rdr::U32* lengths);
+    virtual void handleClipboardRequest(rdr::U32 flags);
+    virtual void handleClipboardPeek(rdr::U32 flags);
+    virtual void handleClipboardNotify(rdr::U32 flags);
+    virtual void handleClipboardProvide(rdr::U32 flags,
+                                        const size_t* lengths,
+                                        const rdr::U8* const* data);
+
     ConnParams cp;
   };
 }

common/rfb/CMsgWriter.cxx

@@ -18,10 +18,14 @@
  */
 #include <stdio.h>
 #include <rdr/OutStream.h>
+#include <rdr/MemOutStream.h>
+#include <rdr/ZlibOutStream.h>
+
 #include <rfb/msgTypes.h>
 #include <rfb/fenceTypes.h>
 #include <rfb/encodings.h>
 #include <rfb/qemuTypes.h>
+#include <rfb/clipboardTypes.h>
 #include <rfb/Exception.h>
 #include <rfb/PixelFormat.h>
 #include <rfb/Rect.h>
@@ -57,7 +61,7 @@ void CMsgWriter::writeSetPixelFormat(const PixelFormat& pf)
 void CMsgWriter::writeSetEncodings(int nEncodings, rdr::U32* encodings)
 {
   startMsg(msgTypeSetEncodings);
-  os->skip(1);
+  os->pad(1);
   os->writeU16(nEncodings);
   for (int i = 0; i < nEncodings; i++)
     os->writeU32(encodings[i]);
@@ -265,6 +269,104 @@ void CMsgWriter::writeClientCutText(const char* str, rdr::U32 len)
   endMsg();
 }
 
+void CMsgWriter::writeClipboardCaps(rdr::U32 caps,
+                                    const rdr::U32* lengths)
+{
+  size_t i, count;
+
+  if (!(cp->clipboardFlags() & clipboardCaps))
+    throw Exception("Server does not support clipboard \"caps\" action");
+
+  count = 0;
+  for (i = 0;i < 16;i++) {
+    if (caps & (1 << i))
+      count++;
+  }
+
+  startMsg(msgTypeClientCutText);
+  os->pad(3);
+  os->writeS32(-(4 + 4 * count));
+
+  os->writeU32(caps | clipboardCaps);
+
+  count = 0;
+  for (i = 0;i < 16;i++) {
+    if (caps & (1 << i))
+      os->writeU32(lengths[count++]);
+  }
+
+  endMsg();
+}
+
+void CMsgWriter::writeClipboardRequest(rdr::U32 flags)
+{
+  if (!(cp->clipboardFlags() & clipboardRequest))
+    throw Exception("Server does not support clipboard \"request\" action");
+
+  startMsg(msgTypeClientCutText);
+  os->pad(3);
+  os->writeS32(-4);
+  os->writeU32(flags | clipboardRequest);
+  endMsg();
+}
+
+void CMsgWriter::writeClipboardPeek(rdr::U32 flags)
+{
+  if (!(cp->clipboardFlags() & clipboardPeek))
+    throw Exception("Server does not support clipboard \"peek\" action");
+
+  startMsg(msgTypeClientCutText);
+  os->pad(3);
+  os->writeS32(-4);
+  os->writeU32(flags | clipboardPeek);
+  endMsg();
+}
+
+void CMsgWriter::writeClipboardNotify(rdr::U32 flags)
+{
+  if (!(cp->clipboardFlags() & clipboardNotify))
+    throw Exception("Server does not support clipboard \"notify\" action");
+
+  startMsg(msgTypeClientCutText);
+  os->pad(3);
+  os->writeS32(-4);
+  os->writeU32(flags | clipboardNotify);
+  endMsg();
+}
+
+void CMsgWriter::writeClipboardProvide(rdr::U32 flags,
+                                      const size_t* lengths,
+                                      const rdr::U8* const* data)
+{
+  rdr::MemOutStream mos;
+  rdr::ZlibOutStream zos;
+
+  int i, count;
+
+  if (!(cp->clipboardFlags() & clipboardProvide))
+    throw Exception("Server does not support clipboard \"provide\" action");
+
+  zos.setUnderlying(&mos);
+
+  count = 0;
+  for (i = 0;i < 16;i++) {
+    if (!(flags & (1 << i)))
+      continue;
+    zos.writeU32(lengths[count]);
+    zos.writeBytes(data[count], lengths[count]);
+    count++;
+  }
+
+  zos.flush();
+
+  startMsg(msgTypeClientCutText);
+  os->pad(3);
+  os->writeS32(-(4 + mos.length()));
+  os->writeU32(flags | clipboardProvide);
+  os->writeBytes(mos.data(), mos.length());
+  endMsg();
+}
+
 void CMsgWriter::startMsg(int type)
 {
   os->writeU8(type);

common/rfb/CMsgWriter.h

@@ -56,6 +56,13 @@ namespace rfb {
     void writePointerEvent(const Point& pos, int buttonMask);
     void writeClientCutText(const char* str, rdr::U32 len);
 
+    void writeClipboardCaps(rdr::U32 caps, const rdr::U32* lengths);
+    void writeClipboardRequest(rdr::U32 flags);
+    void writeClipboardPeek(rdr::U32 flags);
+    void writeClipboardNotify(rdr::U32 flags);
+    void writeClipboardProvide(rdr::U32 flags, const size_t* lengths,
+                               const rdr::U8* const* data);
+
   protected:
     void startMsg(int type);
     void endMsg();

common/rfb/ComparingUpdateTracker.cxx

@@ -695,6 +695,8 @@ bool ComparingUpdateTracker::compare(bool skipScrollDetection, const Region &ski
   std::vector<Rect> rects;
   std::vector<Rect>::iterator i;
 
+  changedPerc = 100;
+
   if (!enabled)
     return false;
 
@@ -749,8 +751,13 @@ bool ComparingUpdateTracker::compare(bool skipScrollDetection, const Region &ski
   for (i = rects.begin(); i != rects.end(); i++)
     totalPixels += i->area();
   newChanged.get_rects(&rects);
-  for (i = rects.begin(); i != rects.end(); i++)
+  unsigned newchangedarea = 0;
+  for (i = rects.begin(); i != rects.end(); i++) {
     missedPixels += i->area();
+    newchangedarea += i->area();
+  }
+
+  changedPerc = newchangedarea * 100 / fb->area();
 
   if (changed.equals(newChanged))
     return false;

common/rfb/ComparingUpdateTracker.h

@@ -48,6 +48,8 @@ namespace rfb {
     virtual void getUpdateInfo(UpdateInfo* info, const Region& cliprgn);
     virtual void clear();
 
+    rdr::U8 changedPerc;
+
   private:
     void compareRect(const Rect& r, Region* newchanged, const Region &skipCursorArea);
     PixelBuffer* fb;

common/rfb/Congestion.cxx

@@ -298,6 +298,11 @@ size_t Congestion::getBandwidth()
   return congWindow * 1000 / safeBaseRTT;
 }
 
+unsigned Congestion::getPingTime() const
+{
+  return safeBaseRTT;
+}
+
 void Congestion::debugTrace(const char* filename, int fd)
 {
 #ifdef CONGESTION_TRACE

common/rfb/Congestion.h

@@ -51,6 +51,8 @@ namespace rfb {
     // per second.
     size_t getBandwidth();
 
+    unsigned getPingTime() const;
+
     // debugTrace() writes the current congestion window, as well as the
     // congestion window of the underlying TCP layer, to the specified
     // file

common/rfb/ConnParams.cxx

@@ -24,6 +24,7 @@
 #include <rfb/Exception.h>
 #include <rfb/encodings.h>
 #include <rfb/ledStates.h>
+#include <rfb/clipboardTypes.h>
 #include <rfb/ConnParams.h>
 #include <rfb/ServerCore.h>
 #include <rfb/SMsgHandler.h>
@@ -36,19 +37,26 @@ ConnParams::ConnParams()
     width(0), height(0), useCopyRect(false),
     supportsLocalCursor(false), supportsLocalXCursor(false),
     supportsLocalCursorWithAlpha(false),
+    supportsVMWareCursor(false),
+    supportsCursorPosition(false),
     supportsDesktopResize(false), supportsExtendedDesktopSize(false),
     supportsDesktopRename(false), supportsLastRect(false),
     supportsLEDState(false), supportsQEMUKeyEvent(false),
     supportsWEBP(false),
     supportsSetDesktopSize(false), supportsFence(false),
-    supportsContinuousUpdates(false),
+    supportsContinuousUpdates(false), supportsExtendedClipboard(false),
     compressLevel(2), qualityLevel(-1), fineQualityLevel(-1),
-    subsampling(subsampleUndefined), name_(0), verStrPos(0),
+    subsampling(subsampleUndefined), name_(0), cursorPos_(0, 0), verStrPos(0),
     ledState_(ledUnknown), shandler(NULL)
 {
   memset(kasmPassed, 0, KASM_NUM_SETTINGS);
   setName("");
   cursor_ = new Cursor(0, 0, Point(), NULL);
+
+  clipFlags = clipboardUTF8 | clipboardRTF | clipboardHTML |
+              clipboardRequest | clipboardNotify | clipboardProvide;
+  memset(clipSizes, 0, sizeof(clipSizes));
+  clipSizes[0] = 20 * 1024 * 1024;
 }
 
 ConnParams::~ConnParams()
@@ -101,6 +109,11 @@ void ConnParams::setCursor(const Cursor& other)
   cursor_ = new Cursor(other);
 }
 
+void ConnParams::setCursorPos(const Point& pos)
+{
+    cursorPos_ = pos;
+}
+
 bool ConnParams::supportsEncoding(rdr::S32 encoding) const
 {
   return encodings_.count(encoding) != 0;
@@ -111,6 +124,7 @@ void ConnParams::setEncodings(int nEncodings, const rdr::S32* encodings)
   useCopyRect = false;
   supportsLocalCursor = false;
   supportsLocalCursorWithAlpha = false;
+  supportsVMWareCursor = false;
   supportsDesktopResize = false;
   supportsExtendedDesktopSize = false;
   supportsLocalXCursor = false;
@@ -141,12 +155,18 @@ void ConnParams::setEncodings(int nEncodings, const rdr::S32* encodings)
     case pseudoEncodingCursorWithAlpha:
       supportsLocalCursorWithAlpha = true;
       break;
+    case pseudoEncodingVMwareCursor:
+      supportsVMWareCursor = true;
+      break;
     case pseudoEncodingDesktopSize:
       supportsDesktopResize = true;
       break;
     case pseudoEncodingExtendedDesktopSize:
       supportsExtendedDesktopSize = true;
       break;
+    case pseudoEncodingVMwareCursorPosition:
+      supportsCursorPosition = true;
+      break;
     case pseudoEncodingDesktopName:
       supportsDesktopRename = true;
       break;
@@ -168,6 +188,9 @@ void ConnParams::setEncodings(int nEncodings, const rdr::S32* encodings)
     case pseudoEncodingContinuousUpdates:
       supportsContinuousUpdates = true;
       break;
+    case pseudoEncodingExtendedClipboard:
+      supportsExtendedClipboard = true;
+      break;
     case pseudoEncodingSubsamp1X:
       subsampling = subsampleNone;
       break;
@@ -259,3 +282,17 @@ void ConnParams::setLEDState(unsigned int state)
 {
   ledState_ = state;
 }
+
+void ConnParams::setClipboardCaps(rdr::U32 flags, const rdr::U32* lengths)
+{
+  int i, num;
+
+  clipFlags = flags;
+
+  num = 0;
+  for (i = 0;i < 16;i++) {
+    if (!(flags & (1 << i)))
+      continue;
+    clipSizes[i] = lengths[num++];
+  }
+}

common/rfb/ConnParams.h

@@ -84,6 +84,9 @@ namespace rfb {
     const Cursor& cursor() const { return *cursor_; }
     void setCursor(const Cursor& cursor);
 
+    const Point& cursorPos() const { return cursorPos_; }
+    void setCursorPos(const Point& pos);
+
     bool supportsEncoding(rdr::S32 encoding) const;
 
     void setEncodings(int nEncodings, const rdr::S32* encodings);
@@ -91,11 +94,16 @@ namespace rfb {
     unsigned int ledState() { return ledState_; }
     void setLEDState(unsigned int state);
 
+    rdr::U32 clipboardFlags() const { return clipFlags; }
+    void setClipboardCaps(rdr::U32 flags, const rdr::U32* lengths);
+
     bool useCopyRect;
 
     bool supportsLocalCursor;
     bool supportsLocalXCursor;
     bool supportsLocalCursorWithAlpha;
+    bool supportsVMWareCursor;
+    bool supportsCursorPosition;
     bool supportsDesktopResize;
     bool supportsExtendedDesktopSize;
     bool supportsDesktopRename;
@@ -107,6 +115,7 @@ namespace rfb {
     bool supportsSetDesktopSize;
     bool supportsFence;
     bool supportsContinuousUpdates;
+    bool supportsExtendedClipboard;
 
     int compressLevel;
     int qualityLevel;
@@ -136,11 +145,14 @@ namespace rfb {
     PixelFormat pf_;
     char* name_;
     Cursor* cursor_;
+    Point cursorPos_;
     std::set<rdr::S32> encodings_;
     char verStr[13];
     int verStrPos;
     unsigned int ledState_;
     SMsgHandler *shandler;
+    rdr::U32 clipFlags;
+    rdr::U32 clipSizes[16];
   };
 }
 #endif

common/rfb/EncodeManager.cxx

@@ -22,10 +22,12 @@
 #include <omp.h>
 #include <stdlib.h>
 
+#include <rfb/cpuid.h>
 #include <rfb/EncCache.h>
 #include <rfb/EncodeManager.h>
 #include <rfb/Encoder.h>
 #include <rfb/Palette.h>
+#include <rfb/scale_sse2.h>
 #include <rfb/SConnection.h>
 #include <rfb/ServerCore.h>
 #include <rfb/SMsgWriter.h>
@@ -359,6 +361,8 @@ void EncodeManager::doUpdate(bool allowLossy, const Region& changed_,
     changed = changed_;
 
     gettimeofday(&start, NULL);
+    memset(&jpegstats, 0, sizeof(codecstats_t));
+    memset(&webpstats, 0, sizeof(codecstats_t));
 
     if (allowLossy && activeEncoders[encoderFullColour] == encoderTightWEBP) {
         const unsigned rate = 1024 * 1000 / rfb::Server::frameRate;
@@ -893,7 +897,7 @@ void EncodeManager::updateVideoStats(const std::vector<Rect> &rects, const Pixel
   }
 }
 
-static PixelBuffer *nearestScale(const PixelBuffer *pb, const uint16_t w, const uint16_t h,
+PixelBuffer *rfb::nearestScale(const PixelBuffer *pb, const uint16_t w, const uint16_t h,
                                  const float diff)
 {
   ManagedPixelBuffer *newpb = new ManagedPixelBuffer(pb->getPF(), w, h);
@@ -918,7 +922,7 @@ static PixelBuffer *nearestScale(const PixelBuffer *pb, const uint16_t w, const
   return newpb;
 }
 
-static PixelBuffer *bilinearScale(const PixelBuffer *pb, const uint16_t w, const uint16_t h,
+PixelBuffer *rfb::bilinearScale(const PixelBuffer *pb, const uint16_t w, const uint16_t h,
                                  const float diff)
 {
   ManagedPixelBuffer *newpb = new ManagedPixelBuffer(pb->getPF(), w, h);
@@ -966,10 +970,68 @@ static PixelBuffer *bilinearScale(const PixelBuffer *pb, const uint16_t w, const
   return newpb;
 }
 
-PixelBuffer *progressiveBilinearScale(const PixelBuffer *pb,
+PixelBuffer *rfb::progressiveBilinearScale(const PixelBuffer *pb,
                                  const uint16_t tgtw, const uint16_t tgth,
                                  const float tgtdiff)
 {
+  if (supportsSSE2()) {
+    if (tgtdiff >= 0.5f) {
+      ManagedPixelBuffer *newpb = new ManagedPixelBuffer(pb->getPF(), tgtw, tgth);
+
+      int oldstride, newstride;
+      const rdr::U8 *oldpx = pb->getBuffer(pb->getRect(), &oldstride);
+      rdr::U8 *newpx = newpb->getBufferRW(newpb->getRect(), &newstride);
+
+      SSE2_scale(oldpx, tgtw, tgth, newpx, oldstride, newstride, tgtdiff);
+      return newpb;
+    }
+
+    PixelBuffer *newpb;
+    uint16_t neww, newh, oldw, oldh;
+    bool del = false;
+
+    do {
+      oldw = pb->getRect().width();
+      oldh = pb->getRect().height();
+      neww = oldw / 2;
+      newh = oldh / 2;
+
+      newpb = new ManagedPixelBuffer(pb->getPF(), neww, newh);
+
+      int oldstride, newstride;
+      const rdr::U8 *oldpx = pb->getBuffer(pb->getRect(), &oldstride);
+      rdr::U8 *newpx = ((ManagedPixelBuffer *) newpb)->getBufferRW(newpb->getRect(),
+                                                                   &newstride);
+
+      SSE2_halve(oldpx, neww, newh, newpx, oldstride, newstride);
+
+      if (del)
+        delete pb;
+      del = true;
+
+      pb = newpb;
+    } while (tgtw * 2 < neww);
+
+    // Final, non-halving step
+    if (tgtw != neww || tgth != newh) {
+      oldw = pb->getRect().width();
+      oldh = pb->getRect().height();
+
+      newpb = new ManagedPixelBuffer(pb->getPF(), tgtw, tgth);
+
+      int oldstride, newstride;
+      const rdr::U8 *oldpx = pb->getBuffer(pb->getRect(), &oldstride);
+      rdr::U8 *newpx = ((ManagedPixelBuffer *) newpb)->getBufferRW(newpb->getRect(),
+                                                                   &newstride);
+
+      SSE2_scale(oldpx, tgtw, tgth, newpx, oldstride, newstride, tgtw / (float) oldw);
+      if (del)
+        delete pb;
+    }
+
+    return newpb;
+  } // SSE2
+
   if (tgtdiff >= 0.5f)
     return bilinearScale(pb, tgtw, tgth, tgtdiff);
 
@@ -1014,6 +1076,7 @@ void EncodeManager::writeRects(const Region& changed, const PixelBuffer* pb,
   std::vector<uint8_t> isWebp, fromCache;
   std::vector<Palette> palettes;
   std::vector<std::vector<uint8_t> > compresseds;
+  std::vector<uint32_t> ms;
   uint32_t i;
 
   if (rfb::Server::rectThreads > 0)
@@ -1078,9 +1141,13 @@ void EncodeManager::writeRects(const Region& changed, const PixelBuffer* pb,
   palettes.resize(subrects.size());
   compresseds.resize(subrects.size());
   scaledrects.resize(subrects.size());
+  ms.resize(subrects.size());
 
   // In case the current resolution is above the max video res, and video was detected,
   // scale to that res, keeping aspect ratio
+  struct timeval scalestart;
+  gettimeofday(&scalestart, NULL);
+
   const PixelBuffer *scaledpb = NULL;
   if (videoDetected &&
       (maxVideoX < pb->getRect().width() || maxVideoY < pb->getRect().height())) {
@@ -1129,15 +1196,25 @@ void EncodeManager::writeRects(const Region& changed, const PixelBuffer* pb,
       }
     }
   }
+  scalingTime = msSince(&scalestart);
 
   #pragma omp parallel for schedule(dynamic, 1)
   for (i = 0; i < subrects.size(); ++i) {
     encoderTypes[i] = getEncoderType(subrects[i], pb, &palettes[i], compresseds[i],
                                      &isWebp[i], &fromCache[i],
-                                     scaledpb, scaledrects[i]);
+                                     scaledpb, scaledrects[i], ms[i]);
     checkWebpFallback(start);
   }
 
+  for (i = 0; i < subrects.size(); ++i) {
+    if (encoderTypes[i] == encoderFullColour) {
+      if (isWebp[i])
+        webpstats.ms += ms[i];
+      else
+        jpegstats.ms += ms[i];
+    }
+  }
+
   if (start) {
     encodingTime = msSince(start);
 
@@ -1178,7 +1255,8 @@ void EncodeManager::writeRects(const Region& changed, const PixelBuffer* pb,
 uint8_t EncodeManager::getEncoderType(const Rect& rect, const PixelBuffer *pb,
                                       Palette *pal, std::vector<uint8_t> &compressed,
                                       uint8_t *isWebp, uint8_t *fromCache,
-                                      const PixelBuffer *scaledpb, const Rect& scaledrect) const
+                                      const PixelBuffer *scaledpb, const Rect& scaledrect,
+                                      uint32_t &ms) const
 {
   struct RectInfo info;
   unsigned int maxColours = 256;
@@ -1231,9 +1309,12 @@ uint8_t EncodeManager::getEncoderType(const Rect& rect, const PixelBuffer *pb,
 
   *isWebp = 0;
   *fromCache = 0;
+  ms = 0;
   if (type == encoderFullColour) {
     uint32_t len;
     const void *data;
+    struct timeval start;
+    gettimeofday(&start, NULL);
 
     if (encCache->enabled &&
         (data = encCache->get(activeEncoders[encoderFullColour],
@@ -1274,6 +1355,8 @@ uint8_t EncodeManager::getEncoderType(const Rect& rect, const PixelBuffer *pb,
                                                                       compressed,
                                                                       videoDetected);
     }
+
+    ms = msSince(&start);
   }
 
   delete ppb;
@@ -1292,10 +1375,15 @@ void EncodeManager::writeSubRect(const Rect& rect, const PixelBuffer *pb,
   encoder = startRect(rect, type, compressed.size() == 0, isWebp);
 
   if (compressed.size()) {
-    if (isWebp)
+    if (isWebp) {
       ((TightWEBPEncoder *) encoder)->writeOnly(compressed);
-    else
+      webpstats.area += rect.area();
+      webpstats.rects++;
+    } else {
       ((TightJPEGEncoder *) encoder)->writeOnly(compressed);
+      jpegstats.area += rect.area();
+      jpegstats.rects++;
+    }
   } else {
     if (encoder->flags & EncoderUseNativePF) {
       ppb = preparePixelBuffer(rect, pb, false);

common/rfb/EncodeManager.h

@@ -68,9 +68,24 @@ namespace rfb {
                               const RenderedCursor* renderedCursor,
                               size_t maxUpdateSize);
 
+    void clearEncodingTime() {
+        encodingTime = 0;
+    };
+
     unsigned getEncodingTime() const {
         return encodingTime;
     };
+    unsigned getScalingTime() const {
+        return scalingTime;
+    };
+
+    struct codecstats_t {
+      uint32_t ms;
+      uint32_t area;
+      uint32_t rects;
+    };
+
+    codecstats_t jpegstats, webpstats;
 
   protected:
     void doUpdate(bool allowLossy, const Region& changed,
@@ -105,7 +120,8 @@ namespace rfb {
     uint8_t getEncoderType(const Rect& rect, const PixelBuffer *pb, Palette *pal,
                            std::vector<uint8_t> &compressed, uint8_t *isWebp,
                            uint8_t *fromCache,
-                           const PixelBuffer *scaledpb, const Rect& scaledrect) const;
+                           const PixelBuffer *scaledpb, const Rect& scaledrect,
+                           uint32_t &ms) const;
     virtual bool handleTimeout(Timer* t);
 
     bool checkSolidTile(const Rect& r, const rdr::U8* colourValue,
@@ -183,6 +199,7 @@ namespace rfb {
     bool webpTookTooLong;
     unsigned encodingTime;
     unsigned maxEncodingTime, framesSinceEncPrint;
+    unsigned scalingTime;
 
     EncCache *encCache;
 
@@ -198,6 +215,13 @@ namespace rfb {
       virtual rdr::U8* getBufferRW(const Rect& r, int* stride);
     };
   };
+
+  PixelBuffer *nearestScale(const PixelBuffer *pb, const uint16_t w, const uint16_t h,
+                            const float diff);
+  PixelBuffer *bilinearScale(const PixelBuffer *pb, const uint16_t w, const uint16_t h,
+                            const float diff);
+  PixelBuffer *progressiveBilinearScale(const PixelBuffer *pb, const uint16_t w, const uint16_t h,
+                            const float diff);
 }
 
 #endif

common/rfb/InputHandler.h

@@ -38,7 +38,9 @@ namespace rfb {
     virtual void pointerEvent(const Point& __unused_attr pos,
 		              int __unused_attr buttonMask,
                               const bool __unused_attr skipClick,
-                              const bool __unused_attr skipRelease) { }
+                              const bool __unused_attr skipRelease,
+                              int scrollX,
+                              int scrollY) { }
     virtual void clientCutText(const char* __unused_attr str,
                                int __unused_attr len) { }
   };

common/rfb/JpegCompressor.cxx

@@ -85,7 +85,7 @@ JpegInitDestination(j_compress_ptr cinfo)
 
   jc->clear();
   dest->pub.next_output_byte = jc->getptr();
-  dest->pub.free_in_buffer = jc->getend() - jc->getptr();
+  dest->pub.free_in_buffer = jc->avail();
 }
 
 static boolean
@@ -95,9 +95,9 @@ JpegEmptyOutputBuffer(j_compress_ptr cinfo)
   JpegCompressor *jc = dest->instance;
 
   jc->setptr(jc->getend());
-  jc->overrun(jc->getend() - jc->getstart(), 1);
+  jc->check(jc->length());
   dest->pub.next_output_byte = jc->getptr();
-  dest->pub.free_in_buffer = jc->getend() - jc->getptr();
+  dest->pub.free_in_buffer = jc->avail();
 
   return TRUE;
 }

common/rfb/JpegCompressor.h

@@ -47,12 +47,6 @@ namespace rfb {
 
     void writeBytes(const void*, int);
 
-    inline rdr::U8* getstart() { return start; }
-
-    virtual inline size_t overrun(size_t itemSize, size_t nItems) {
-      return MemOutStream::overrun(itemSize, nItems);
-    }
-
   private:
 
     struct jpeg_compress_struct *cinfo;

common/rfb/SConnection.cxx

@@ -20,6 +20,7 @@
 #include <string.h>
 #include <rfb/Exception.h>
 #include <rfb/Security.h>
+#include <rfb/clipboardTypes.h>
 #include <rfb/msgTypes.h>
 #include <rfb/fenceTypes.h>
 #include <rfb/SMsgReader.h>
@@ -52,7 +53,8 @@ SConnection::SConnection()
   : readyForSetColourMapEntries(false),
     is(0), os(0), reader_(0), writer_(0),
     ssecurity(0), state_(RFBSTATE_UNINITIALISED),
-    preferredEncoding(encodingRaw)
+    preferredEncoding(encodingRaw),
+    clientClipboard(NULL), hasLocalClipboard(false)
 {
   defaultMajorVersion = 3;
   defaultMinorVersion = 8;
@@ -69,6 +71,7 @@ SConnection::~SConnection()
   reader_ = 0;
   delete writer_;
   writer_ = 0;
+  strFree(clientClipboard);
 }
 
 void SConnection::setStreams(rdr::InStream* is_, rdr::OutStream* os_)
@@ -283,6 +286,25 @@ void SConnection::setEncodings(int nEncodings, const rdr::S32* encodings)
   SMsgHandler::setEncodings(nEncodings, encodings);
 }
 
+void SConnection::clearBinaryClipboard()
+{
+  binaryClipboard.clear();
+}
+
+void SConnection::addBinaryClipboard(const char mime[], const rdr::U8 *data,
+                                     const rdr::U32 len)
+{
+  binaryClipboard_t bin;
+  strncpy(bin.mime, mime, sizeof(bin.mime));
+  bin.mime[sizeof(bin.mime) - 1] = '\0';
+
+  bin.data.resize(len);
+  memcpy(&bin.data[0], data, len);
+
+  binaryClipboard.push_back(bin);
+}
+
+
 void SConnection::supportsQEMUKeyEvent()
 {
   writer()->writeQEMUKeyEvent();
@@ -375,6 +397,15 @@ void SConnection::enableContinuousUpdates(bool enable,
 {
 }
 
+void SConnection::handleClipboardAnnounce(bool available)
+{
+}
+
+void SConnection::announceClipboard(bool available)
+{
+  hasLocalClipboard = available;
+}
+
 void SConnection::writeFakeColourMap(void)
 {
   int i;