.devcontainer/Dockerfile

+# Copyright 2018-2023 Istituto Nazionale di Fisica Nucleare
+# SPDX-License-Identifier: EUPL-1.2
+
+FROM almalinux:9
+
+# Allow customization of build user ID and name
+ARG USERNAME=vscode
+ARG USER_UID=1000
+ARG USER_GID=${USER_UID}
+
+COPY library-scripts/*.sh /tmp/library-scripts/
+
+RUN \
+    sh /tmp/library-scripts/provide-dev-deps.sh && \
+    sh /tmp/library-scripts/provide-user.sh ${USERNAME} ${USER_UID} ${USER_GID} && \
+    dnf clean all && rm -rf /var/cache/dnf
+
+USER $USERNAME

.devcontainer/README.md

+# `ngx_http_voms_module` for developers
+
+A devcontainer is ready to use for the developers. A set of packages without nginx are already installed.
+
+## How to build and install nginx with or without httpg patch
+
+To build and install the latest stable version of [nginx](http://nginx.org/en/download.html) you have to copy the `nginx.repo` file (it is contained in the `docker` directory) into the `/etc/yum.repos.d/` directory and install nginx with `yum`:
+
+```shell
+$ sudo cp docker/nginx.repo /etc/yum.repos.d/
+$ sudo yum install -y nginx
+```
+
+Otherwise, if you want to build and install the latest stable version of [nginx](http://nginx.org/en/download.html) with the httpg patch, a bash library is ready to use. You can source it and follow the commands below:
+
+```shell
+$ source .devcontainer/assets/build-library.sh
+$ downloadNginx
+$ buildHttpgNginxRPM
+$ sudo rpm -ivh ~/rpmbuild/RPMS/x86_64/nginx-*.httpg.x86_64.rpm
+```
+
+## How to build and install the `ngx_http_voms_module`
+
+If you want to build and install the `ngx_http_voms_module`, nginx have to be installed in the container (see the previous section). When this requirement is satisfied, you can use the library contained in the `.devcontainer/assets` folder as follows (NOTE: if you have already download nginx source file, you can skip the relative command):
+
+```shell
+$ source .devcontainer/assets/build-library.sh
+$ downloadNginx
+$ buildVomsModuleRPM
+$ sudo rpm -ivh ~/rpmbuild/RPMS/x86_64/nginx-module-http-voms-*.x86_64.rpm
+```
+## How to manage this project
+
+If you want to understand how this project works, start from the CI. Three stages are defined:
+
+### 1. build-rpms
+
+Starting from a clear AlmaLinux 9, we install all the useful packages to compile nginx and to build a rpm package. The bash steps that achieves these results are defined in the `.devcontainer/assets/build-library.sh` file, so you can read that bash script to learn which nginx version we use, how to download it, how to set up the environment and how to build the rpm. 
+
+It is important to underline that to build the nginx rpm we use the spec file in the `rpm` repo, that is the official nginx 1.24.0 spec file increased by the HTTPG patch. To build the `ngx_http_voms_module` we have defined an appropriate spec file indeed. The files that are used to build the rpm module are written, called and collocated following the common practices of the nginx modules: a source file is defined in the `src` folder, the `config` and the `config.make` files are in the root project directory.
+
+At the end of this stage, all the useful rpms are saved as job artifacts.
+
+### 2. docker-build-rpms
+
+In this stage we set up a docker image with nginx, the httpg patch and the `ngx_http_voms_module`. To do this, we use a set of scripts in the [`helper-scripts`](https://baltig.infn.it/mw-devel/helper-scripts.git) project.
+
+The dockerfile and all the files needed for its compilation are in the `docker` directory. The image starts from AlmaLinux 9, defines a user and installs a set of useful packages. After that we import the nginx repo file, in this way we can download a lot of packages provided by nginx, including its last stable version. In the end we install the rpm packages that we build in the previous stage and the njs module.
+
+### 3. push-to-dockerhub
+
+In this last stage we push on dockerhub the image that we have builded in the previous stage. Note that this stage is run only when we push something in the master branch.

.devcontainer/assets/build-library.sh

+#!/usr/bin/env bash
+
+# Copyright 2018-2023 Istituto Nazionale di Fisica Nucleare
+# SPDX-License-Identifier: EUPL-1.2
+
+downloadNginx() {
+
+  # check if ~/rpmbuild exists and is not empty
+  if [ -d ${HOME}/rpmbuild ] && [ "$(ls -A ${HOME}/rpmbuild)" ]; then
+    >&2 echo "Error: ${HOME}/rpmbuild already exists and is not empty"
+    return 1
+  fi
+
+  # set nginx version
+  if [ -z ${ngxVersion} ]; then
+    ngxVersion=1.26.3-1
+  fi
+  elVersion=$(rpmbuild --eval %{rhel})
+  echo "Downloading nginx version ${ngxVersion} (EL${elVersion})"
+  src_package_name="nginx-${ngxVersion}.el${elVersion}.ngx.src.rpm"
+  src_package_url="https://nginx.org/packages/centos/${elVersion}/SRPMS/${src_package_name}"
+
+  wget ${src_package_url}
+  rpm -i ${src_package_name}
+
+}
+
+buildHttpgNginxRPM() {
+
+  if ! printenv CI_PROJECT_DIR > /dev/null; then
+    >&2 echo "CI_PROJECT_DIR is not set in the environment, assuming the current working directory '${PWD}'"
+    export CI_PROJECT_DIR="${PWD}"
+  fi
+
+  sh ${CI_PROJECT_DIR}/rpm/addPatchToNginxSpec.sh
+
+  # build rpm
+  rpmlint ~/rpmbuild/SPECS/nginx.spec
+  rpmbuild -ba ~/rpmbuild/SPECS/nginx.spec
+}
+
+buildVomsModuleRPM() {
+
+  if [ -z ${CI_PROJECT_DIR} ]; then
+    CI_PROJECT_DIR="/workspaces/ngx_http_voms_module"
+  fi
+
+  # set voms modules sources
+  cd ~/rpmbuild/SOURCES/
+  mkdir ngx-http-voms-module
+  cp ${CI_PROJECT_DIR}/config ngx-http-voms-module/
+  cp ${CI_PROJECT_DIR}/config.make ngx-http-voms-module/
+  cp -r ${CI_PROJECT_DIR}/src ngx-http-voms-module/
+  cp ${CI_PROJECT_DIR}/rpm/nginx-module-http-voms.spec ~/rpmbuild/SPECS
+
+  # build rpm
+  rpmlint ~/rpmbuild/SPECS/nginx-module-http-voms.spec
+  rpmbuild -ba ~/rpmbuild/SPECS/nginx-module-http-voms.spec
+
+  cd ${CI_PROJECT_DIR}
+
+}

.devcontainer/devcontainer.json

+// For format details, see https://aka.ms/vscode-remote/devcontainer.json or this file's README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.159.0/containers/cpp
+{
+  "name": "C++",
+  "build": {
+    "dockerfile": "Dockerfile",
+  },
+  "runArgs": [
+    "--cap-add=SYS_PTRACE",
+    "--security-opt",
+    "seccomp=unconfined"
+  ],
+  // Set *default* container specific settings.json values on container create.
+  "settings": {
+    "terminal.integrated.defaultProfile.linux": "bash"
+  },
+  // Add the IDs of extensions you want installed when the container is created.
+  "extensions": [
+    "ms-vscode.cpptools",
+  ],
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // "forwardPorts": [],
+  // Use 'postCreateCommand' to run commands after the container is created.
+  //"postCreateCommand": "sudo debuginfo-install -y voms",
+  // Comment out this line to run as root instead.
+  "remoteUser": "vscode",
+  "remoteEnv": {"NGX_HTTP_VOMS_MODULE_ROOT": "${containerWorkspaceFolder}"}
+}
\ No newline at end of file

.devcontainer/library-scripts/provide-dev-deps.sh

+#!/usr/bin/env bash
+
+# Copyright 2018-2023 Istituto Nazionale di Fisica Nucleare
+# SPDX-License-Identifier: EUPL-1.2
+
+set -ex
+
+dnf install -y epel-release
+dnf update -y
+
+dnf install -y --setopt=tsflags=nodocs \
+    which \
+    wget \
+    sudo \
+    file \
+    git \
+    gcc-c++ \
+    gd-devel \
+    gettext \
+    ccache \
+    libxslt-devel \
+    lcov \
+    perl-ExtUtils-Embed \
+    perl-Digest-SHA \
+    readline-devel \
+    boost-devel \
+    voms-devel \
+    make \
+    patch \
+    zlib-devel \
+    pcre2-devel \
+    rpmdevtools \
+    rpmlint \
+    cpan \
+    voms-clients-cpp
\ No newline at end of file

.devcontainer/library-scripts/provide-user.sh

+#!/usr/bin/env bash
+
+# Copyright 2018-2023 Istituto Nazionale di Fisica Nucleare
+# SPDX-License-Identifier: EUPL-1.2
+
+USERNAME=${1}
+USER_UID=${2}
+USER_GID=${3}
+
+set -e
+
+if [ "$(id -u)" -ne 0 ]; then
+    echo -e 'Script must be run as root. Use sudo, su, or add "USER root" to your Dockerfile before running this script.'
+    exit 1
+fi
+
+groupadd --gid $USER_GID $USERNAME
+useradd --uid $USER_UID --gid $USER_GID -m $USERNAME
+
+echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME
+chmod 0440 /etc/sudoers.d/$USERNAME
+
+CODESPACES_BASH="$(cat \
+<<'EOF'
+
+# Codespaces bash prompt theme
+__bash_prompt() {
+    local userpart='`export XIT=$? \
+        && [ ! -z "${GITHUB_USER}" ] && echo -n "\[\033[0;32m\]@${GITHUB_USER} " || echo -n "\[\033[0;32m\]\u " \
+        && [ "$XIT" -ne "0" ] && echo -n "\[\033[1;31m\]➜" || echo -n "\[\033[0m\]➜"`'
+    local gitbranch='`\
+        export BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null); \
+        if [ "${BRANCH}" = "HEAD" ]; then \
+            export BRANCH=$(git describe --contains --all HEAD 2>/dev/null); \
+        fi; \
+        if [ "${BRANCH}" != "" ]; then \
+            echo -n "\[\033[0;36m\](\[\033[1;31m\]${BRANCH}" \
+            && if git ls-files --error-unmatch -m --directory --no-empty-directory -o --exclude-standard ":/*" > /dev/null 2>&1; then \
+                    echo -n " \[\033[1;33m\]✗"; \
+            fi \
+            && echo -n "\[\033[0;36m\]) "; \
+        fi`'
+    local lightblue='\[\033[1;34m\]'
+    local removecolor='\[\033[0m\]'
+    PS1="${userpart} ${lightblue}\w ${gitbranch}${removecolor}\$ "
+    unset -f __bash_prompt
+}
+__bash_prompt
+
+EOF
+)"
+
+USER_RC_PATH="/home/${USERNAME}"
+echo "${CODESPACES_BASH}" >> "${USER_RC_PATH}/.bashrc"
+chown ${USERNAME}:${USER_GID} "${USER_RC_PATH}/.bashrc"
+
+echo "Done!"

.gitignore

+.vscode
+servroot*
+nginx
+docker/artifacts
+node_modules
+t/*
+!t/README.md
+!t/*.t
+!t/setup.sh
+!t/conf.d
+!t/proxies.d
+!t/openssl.conf
+!t/socket.js
+

.gitlab-ci.yml

+
+stages:
+  - build
+  - docker-build
+  - docker-push
+
+build-rpms-el8:
+  stage: build
+  image: almalinux:8
+  script: 
+    - env | sort
+    - dnf -y install epel-release
+    - dnf install -y wget openssl-devel zlib-devel pcre2-devel make rpmdevtools rpmlint boost-devel voms-devel gcc-c++
+    - source .devcontainer/assets/build-library.sh
+    - CI_PROJECT_DIR=$PWD
+    - downloadNginx
+    - buildHttpgNginxRPM
+    - buildVomsModuleRPM
+    - cd ${CI_PROJECT_DIR}/docker && mkdir artifacts
+    - cp ~/rpmbuild/SRPMS/* artifacts/
+    - cp ~/rpmbuild/RPMS/x86_64/* artifacts/
+  artifacts:
+    paths:
+      - docker/artifacts/
+
+build-rpms-el9:
+  stage: build
+  image: almalinux:9
+  script: 
+    - env | sort
+    - dnf -y install epel-release
+    - dnf install -y wget openssl-devel zlib-devel pcre2-devel make rpmdevtools rpmlint boost-devel voms-devel gcc-c++
+    - source .devcontainer/assets/build-library.sh
+    - CI_PROJECT_DIR=$PWD
+    - downloadNginx
+    - buildHttpgNginxRPM
+    - buildVomsModuleRPM
+    - cd ${CI_PROJECT_DIR}/docker && mkdir artifacts
+    - cp ~/rpmbuild/SRPMS/* artifacts/
+    - cp ~/rpmbuild/RPMS/x86_64/* artifacts/
+  artifacts:
+    paths:
+      - docker/artifacts/
+
+docker-build-rpms:
+  stage: docker-build
+  image: docker:latest
+  services:
+    - name: docker:dind
+      command: ["--tls=false"]
+  dependencies:
+    - build-rpms-el8
+    - build-rpms-el9
+  script:
+    - apk add git bash
+    - git clone https://baltig.infn.it/mw-devel/helper-scripts.git helper-scripts
+    - cp helper-scripts/scripts/* /usr/local/bin
+    - rm ${CI_PROJECT_DIR}/docker/artifacts/*-debuginfo*.rpm
+    - docker login -u gitlab-ci-token -p ${CI_JOB_TOKEN} ${CI_REGISTRY}
+    - export DOCKER_REGISTRY_HOST=${CI_REGISTRY}
+    - export DOCKER_REGISTRY_NAMESPACE=${CI_PROJECT_PATH}
+    - cd docker && build-docker-image.sh && push-docker-image.sh
+
+push-to-dockerhub:
+  stage: docker-push
+  image: docker:latest
+  services:
+    - name: docker:dind
+      command: ["--tls=false"]
+  dependencies:
+    - docker-build-rpms
+  script:
+    - apk add git bash
+    - git clone https://baltig.infn.it/mw-devel/helper-scripts.git helper-scripts
+    - cp helper-scripts/scripts/* /usr/local/bin
+    - export DOCKER_PUSH_TO_DOCKERHUB=y
+    - env | sort
+    - docker login -u gitlab-ci-token -p ${CI_JOB_TOKEN} ${CI_REGISTRY}
+    - export DOCKER_REGISTRY_HOST=${CI_REGISTRY}
+    - export DOCKER_REGISTRY_NAMESPACE=${CI_PROJECT_PATH}
+    - cd docker && pull-docker-image.sh && unset DOCKER_REGISTRY_HOST
+    - docker login -u ${DOCKERHUB_USER} -p ${DOCKERHUB_PASSWORD} && push-docker-image.sh
+  only:
+    - master

LICENSE

+EUROPEAN UNION PUBLIC LICENCE v. 1.2
+EUPL © the European Union 2007, 2016
+
+This European Union Public Licence (the 'EUPL') applies to the Work (as defined
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+
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+- any litigation arising between other parties and resulting from the
+  interpretation of this License, will be subject to the exclusive jurisdiction
+  of the competent court where the Licensor resides or conducts its primary
+  business.
+
+15. Applicable Law
+
+Without prejudice to specific agreement between parties,
+
+- this Licence shall be governed by the law of the European Union Member State
+  where the Licensor has his seat, resides or has his registered office,
+- this licence shall be governed by Belgian law if the Licensor has no seat,
+  residence or registered office inside a European Union Member State.
+
+                                 Appendix
+
+'Compatible Licences' according to Article 5 EUPL are:
+
+- GNU General Public License (GPL) v. 2, v. 3
+- GNU Affero General Public License (AGPL) v. 3
+- Open Software License (OSL) v. 2.1, v. 3.0
+- Eclipse Public License (EPL) v. 1.0
+- CeCILL v. 2.0, v. 2.1
+- Mozilla Public Licence (MPL) v. 2
+- GNU Lesser General Public Licence (LGPL) v. 2.1, v. 3
+- Creative Commons Attribution-ShareAlike v. 3.0 Unported (CC BY-SA 3.0) for
+  works other than software
+- European Union Public Licence (EUPL) v. 1.1, v. 1.2
+- Québec Free and Open-Source Licence - Reciprocity (LiLiQ-R) or Strong
+  Reciprocity (LiLiQ-R+).
+
+The European Commission may update this Appendix to later versions of the above
+licences without producing a new version of the EUPL, as long as they provide
+the rights granted in Article 2 of this Licence and protect the covered Source
+Code from exclusive appropriation.
+
+All other changes or additions to this Appendix require the production of a new
+EUPL version.

README.md

+# `ngx_http_voms_module`
+
+[![pipeline status](https://baltig.infn.it/cnafsd/ngx_http_voms_module/badges/master/pipeline.svg)](https://baltig.infn.it/cnafsd/ngx_http_voms_module/commits/master)
+
+## Description
+
+`ngx_http_voms_module` is a module for the [Nginx web server](https://www.nginx.org/) that enables client-side authentication based on X.509 proxy certificates augmented with VOMS Attribute Certificates, typically obtained from a [Virtual Organization Membership Service](https://italiangrid.github.io/voms/) (VOMS) server.
+
+The module defines a set of *embedded* variables, whose values are extracted from the first Attribute Certificate found in the certificate chain.
+
+### Embedded Variables
+
+The module makes the following embedded variables available for use in an Nginx configuration file:
+
+#### voms_user
+
+The Subject of the End-Entity certificate, used to sign the proxy.
+
+_Example_: ``/C=IT/O=IGI/CN=test0``
+
+#### ssl_client_ee_s_dn
+
+Like `voms_user`, the Subject of the End-Entity certificate. Unlike `voms_user`, it is available even for non-VOMS proxies and is formatted according to RFC 2253.
+
+_Example_: `CN=test0,O=IGI,C=IT`
+
+#### voms_user_ca
+
+The Issuer (Certificate Authority) of the End-Entity certificate.
+
+_Example_: `/C=IT/O=IGI/CN=Test CA`
+
+#### ssl_client_ee_i_dn
+
+Like `voms_user_ca`, the Issuer of the End-Entity certificate. Unlike `voms_user_ca`, it is available even for non-VOMS proxies and is formatted according to RFC 2253.
+
+_Example_: `CN=Test CA,O=IGI,C=IT`
+
+#### voms_fqans
+
+A comma-separated list of Fully Qualified Attribute Names. See [The VOMS Attribute Certificate Format](http://ogf.org/documents/GFD.182.pdf) for more details.
+
+_Example_: `/test.vo/exp1,/test.vo/exp2,/test.vo/exp3/Role=PIPPO`
+
+#### voms_server
+
+The Subject of the VOMS server certificate, used to sign the Attribute Certificate.
+
+_Example_: `/C=IT/O=IGI/CN=voms.example`
+
+#### voms_server_ca
+
+The Issuer (Certificate Authority) of the VOMS server certificate.
+
+_Example_: `/C=IT/O=IGI/CN=Test CA`
+
+#### voms_vo
+
+The name of the Virtual Organization (VO) to which the End Entity belongs.
+
+_Example_: `test.vo`
+
+#### voms_server_uri
+
+The hostname and port of the VOMS network service that issued the Attribute Certificate, in the form _hostname_ :_port_.
+
+_Example_: `voms.example:15000`
+
+#### voms_not_before
+
+The date before which the Attribute Certificate is not yet valid, in the form _YYYYMMDDhhmmss_ `Z`.
+
+_Example_: `20180101000000Z`
+
+#### voms_not_after
+
+The date after which the Attribute Certificate is not valid anymore, in the form _YYYYMMDDhhmmss_ `Z`.
+
+_Example_: `20180101120000Z`
+
+#### voms_generic_attributes
+
+A comma-separated list of attributes, each defined by three properties and formatted as `n=`_name_ `v=`_value_ `q=`_qualifier_. The qualifier typically coincides with the name of the VO.
+
+_Example_: `n=nickname v=newland q=test.vo,n=nickname v=giaco q=test.vo`
+
+#### voms_serial
+
+The serial number of the Attribute Certificate in hexadecimal format.
+
+_Example_: `7B`
+
+## Installation
+
+### prerequisites
+The software dependecies are listed in the [provide-deps](docker/library-scripts/provide-deps.sh) script in the `docker` directory.
+
+The nginx source files are also needed. To download them in ```/tmp/nginx-x.y.z``` you can execute:
+
+```shell
+$ ngxVersion=<version>
+$ wget -O /tmp/nginx-$ngxVersion.tar.gz https://nginx.org/download/nginx-$ngxVersion.tar.gz
+$ cd /tmp && tar -xzvf /tmp/nginx-$ngxVersion.tar.gz && cd -
+```
+
+### Generic installation
+The generic installation instructions are:
+
+```shell
+$ cd /tmp/nginx-x.y.z
+$ ./configure --add-module=/path/to/ngx_http_voms_module
+$ make && make install
+```
+
+### Docker container
+
+A Docker image with nginx and the `ngx_http_voms_module` is available, you can find it [here](https://hub.docker.com/r/cnafsd/nginx-httpg-voms).
+
+### For the developers
+A [.devcontainer](.devcontainer) is provided for the developers with all the instructions on how to use it, how to build the rpm module and how to install it.
+
+## Testing
+
+Setup and files to test the `ngx_http_voms_module` are contained in the [`t`](t) folder.

config

+ngx_addon_name=ngx_http_voms_module
 ngx_module_type=HTTP
-ngx_addon_name=voms
 ngx_module_name=ngx_http_voms_module
-ngx_module_srcs="$ngx_addon_dir/ngx_http_voms_module.cpp"
+ngx_module_srcs="$ngx_addon_dir/src/ngx_http_voms_module.cpp"
 ngx_module_libs="-lvomsapi -lstdc++"
 
 . auto/module

config.make

+echo "objs/addon/src/ngx_http_voms_module.o: CFLAGS += -Werror" >> $NGX_MAKEFILE
+

docker/.env

+DOCKER_IMAGE=cnafsd/nginx-httpg-voms
+DOCKER_VERBOSE=y
+DOCKER_GIT_TAG_ENABLED=y

docker/Dockerfile

+# Copyright 2018-2023 Istituto Nazionale di Fisica Nucleare
+# SPDX-License-Identifier: EUPL-1.2
+
+ARG EL_VERSION=9
+
+FROM almalinux:${EL_VERSION}
+
+# https://docs.docker.com/reference/dockerfile/#understand-how-arg-and-from-interact
+ARG EL_VERSION
+
+# Allow customization of nginx user ID and name
+ARG USERNAME=nginx
+ARG USER_UID=1000
+ARG USER_GID=${USER_UID}
+
+# install dependencies
+COPY library-scripts/*.sh /tmp/library-scripts/
+RUN dnf update -y && \
+    sh /tmp/library-scripts/provide-deps.sh && \
+    sh /tmp/library-scripts/provide-user.sh ${USERNAME} ${USER_UID} ${USER_GID} && \
+    mkdir /pkgs && \
+    dnf clean all && rm -rf /var/cache/dnf
+
+COPY artifacts/*.rpm /pkgs/
+
+# install nginx httpg + voms and njs dynamic modules (latest version)
+COPY nginx.repo /etc/yum.repos.d/nginx.repo
+RUN rpm -ivh /pkgs/nginx-*.el${EL_VERSION}.httpg.x86_64.rpm && \
+    rpm -ivh /pkgs/nginx-module-http-voms-*.el${EL_VERSION}.x86_64.rpm && \
+    dnf install -y nginx-module-njs-$(rpm -q --qf %{VERSION} nginx)* \
+# forward request and error logs to docker log collector
+    && ln -sf /dev/stdout /var/log/nginx/access.log \
+    && ln -sf /dev/stderr /var/log/nginx/error.log
+
+# install nginx + voms and njs dynamic modules
+# RUN dnf -y install nginx nginx-module-njs && \
+#     rpm -ivh /pkgs/nginx-module-http-voms-1.24.0-1.el${EL_VERSION}.x86_64.rpm
+
+EXPOSE 80
+
+STOPSIGNAL SIGQUIT
+
+CMD ["nginx", "-g", "daemon off;"]

docker/library-scripts/provide-deps.sh

+#!/usr/bin/env bash
+
+# Copyright 2018-2023 Istituto Nazionale di Fisica Nucleare
+# SPDX-License-Identifier: EUPL-1.2
+
+set -ex
+
+dnf -y install epel-release wget
+
+# https://openresty.org/en/linux-packages.html#centos
+wget https://openresty.org/package/centos/openresty2.repo
+mv openresty2.repo /etc/yum.repos.d/openresty.repo
+
+dnf config-manager --set-enabled crb
+dnf -y install \
+    hostname \
+    which \
+    tar \
+    sudo \
+    file \
+    readline \
+    gettext \
+    less \
+    openssl \
+    zlib-devel \
+    pcre2-devel \
+    boost-devel \
+    voms-devel \
+    patch \
+    gcc-c++ \
+    rpmdevtools \
+    rpmlint \
+    perl-ExtUtils-Embed \
+    perl-Test-Nginx \
+    perl-Digest-SHA \
+    cpan \
+    voms-clients-cpp \
+    procps-ng

docker/library-scripts/provide-user.sh

+#!/usr/bin/env bash
+
+# Copyright 2018-2023 Istituto Nazionale di Fisica Nucleare
+# SPDX-License-Identifier: EUPL-1.2
+
+USERNAME=${1}
+USER_UID=${2}
+USER_GID=${3}
+
+set -ex
+
+groupadd --gid $USER_GID $USERNAME
+useradd --uid $USER_UID --gid $USER_GID -m $USERNAME
+
+echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME
+chmod 0440 /etc/sudoers.d/$USERNAME

docker/nginx.repo

+[nginx-stable]
+name=nginx stable repo
+baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
+gpgcheck=1
+enabled=1
+gpgkey=https://nginx.org/keys/nginx_signing.key
+module_hotfixes=true
+
+[nginx-mainline]
+name=nginx mainline repo
+baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
+gpgcheck=1
+enabled=0
+gpgkey=https://nginx.org/keys/nginx_signing.key
+module_hotfixes=true

nginx-httpg_no_delegation.patch

+diff --git a/src/http/ngx_http_parse.c b/src/http/ngx_http_parse.c
+index d9a1dbed..7438816e 100644
+--- a/src/http/ngx_http_parse.c
++++ b/src/http/ngx_http_parse.c
+@@ -149,7 +149,13 @@ ngx_http_parse_request_line(ngx_http_request_t *r, ngx_buf_t *b)
+                 break;
+             }
+ 
+-            if ((ch < 'A' || ch > 'Z') && ch != '_' && ch != '-') {
++            if (ch == '0') {
++                // httpg with no delegation
++                // eat the character and continue with the rest of the request
++                ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "httpg request w/o delegation");
++                r->request_start++;
++                // httpg with a delegation request would fail for an unknown method
++            } else if ((ch < 'A' || ch > 'Z') && ch != '_' && ch != '-') {
+                 return NGX_HTTP_PARSE_INVALID_METHOD;
+             }
+ 

ngx_http_voms_module.cpp

-extern "C" {
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_http.h>
-}
-#include <voms/voms_api.h>
-#include <cassert>
-#include <chrono>
-#include <iostream>
-#include <memory>
-#include <numeric>
-#include <string>
-#include <boost/algorithm/string/join.hpp>
-#include <boost/optional.hpp>
-
-using BioPtr = std::unique_ptr<BIO, decltype(&BIO_free)>;
-using X509Ptr = std::unique_ptr<X509, decltype(&X509_free)>;
-using VomsAc = voms;
-using MaybeVomsAc = boost::optional<VomsAc>;
-
-static ngx_int_t add_variables(ngx_conf_t* cf);
-
-static ngx_http_module_t ctx = {
-    add_variables,  // preconfiguration
-    NULL,           // postconfiguration
-    NULL,           // create main configuration
-    NULL,           // init main configuration
-    NULL,           // create server configuration
-    NULL,           // merge server configuration
-    NULL,           // create location configuration
-    NULL            // merge location configuration
-};
-
-ngx_module_t ngx_http_voms_module = {
-    NGX_MODULE_V1,
-    &ctx,                  // module context
-    NULL,                  // module directives
-    NGX_HTTP_MODULE,       // module type
-    NULL,                  // init master
-    NULL,                  // init module
-    NULL,                  // init process
-    NULL,                  // init thread
-    NULL,                  // exit thread
-    NULL,                  // exit process
-    NULL,                  // exit master
-    NGX_MODULE_V1_PADDING  //
-};
-
-static ngx_int_t get_voms_fqans(  //
-    ngx_http_request_t* r,
-    ngx_http_variable_value_t* v,
-    uintptr_t data);
-static ngx_int_t get_voms_user(  //
-    ngx_http_request_t* r,
-    ngx_http_variable_value_t* v,
-    uintptr_t data);
-
-static ngx_http_variable_t variables[] = {
-    {
-        ngx_string("voms_fqans"),
-        NULL,
-        get_voms_fqans,
-        0,
-        NGX_HTTP_VAR_NOCACHEABLE,
-        0  //
-    },
-    {
-        ngx_string("voms_user"),
-        NULL,
-        get_voms_user,
-        0,
-        NGX_HTTP_VAR_NOCACHEABLE,
-        0  //
-    },
-    ngx_http_null_variable  //
-};
-
-static ngx_int_t add_variables(ngx_conf_t* cf)
-{
-  for (ngx_http_variable_t* v = variables; v->name.len; ++v) {
-    ngx_http_variable_t* var = ngx_http_add_variable(cf, &v->name, v->flags);
-    if (var == NULL) {
-      return NGX_ERROR;
-    }
-
-    var->get_handler = v->get_handler;
-    var->data = v->data;
-  }
-
-  return NGX_OK;
-}
-
-template <class S>
-static std::string to_string(S const* s)
-{
-  return std::string(reinterpret_cast<char const*>(s->data),
-                     reinterpret_cast<char const*>(s->data) + s->len);
-}
-
-boost::optional<std::string> to_pem(X509& x509)
-{
-  BioPtr bio{BIO_new(BIO_s_mem()), BIO_free};
-  if (PEM_write_bio_X509(bio.get(), &x509) == 0) {
-    return boost::none;
-  } else {
-    char* data = nullptr;
-    auto len = BIO_get_mem_data(bio.get(), &data);
-    if (len > 0) {
-      return std::string(data, data + len);
-    } else {
-      return boost::none;
-    }
-  }
-}
-
-// return the first AC, if present
-static MaybeVomsAc retrieve_voms_ac_from_proxy(ngx_http_request_t* r)
-{
-  ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "%s", __FUNCTION__);
-
-  if (!r->http_connection->ssl) {
-    return boost::none;
-  }
-
-  auto client_cert = X509Ptr{
-      SSL_get_peer_certificate(r->connection->ssl->connection), X509_free};
-  if (!client_cert) {
-    ngx_log_error(NGX_LOG_ERR,
-                  r->connection->log,
-                  0,
-                  "SSL_get_peer_certificate() failed");
-    return boost::none;
-  }
-
-  auto client_chain = SSL_get_peer_cert_chain(r->connection->ssl->connection);
-  if (!client_chain) {
-    ngx_log_error(
-        NGX_LOG_ERR, r->connection->log, 0, "SSL_get_peer_cert_chain() failed");
-    return boost::none;
-  }
-
-  vomsdata vd;
-  auto ok = vd.Retrieve(client_cert.get(), client_chain, RECURSE_CHAIN);
-  if (!ok) {
-    // vd.error is not interpreted correctly by the logger, which probably uses
-    // errno
-    ngx_log_error(NGX_LOG_ERR,
-                  r->connection->log,
-                  vd.error,
-                  "%s",
-                  vd.ErrorMessage().c_str());
-    return boost::none;
-  }
-
-  if (vd.data.empty()) {
-    ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "no ACs in proxy");
-    return boost::none;
-  }
-
-  return vd.data.front();
-}
-
-static void clean_voms_ac(void* data)
-{
-  auto r = static_cast<ngx_http_request_t*>(data);
-  ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "%s", __FUNCTION__);
-
-  auto p = static_cast<MaybeVomsAc*>(
-      ngx_http_get_module_ctx(r, ngx_http_voms_module));
-  delete p;
-}
-
-static void cache_voms_ac(ngx_http_request_t* r, MaybeVomsAc* ac)
-{
-  ngx_http_set_ctx(r, ac, ngx_http_voms_module);
-  auto cln = ngx_http_cleanup_add(r, 0);
-  if (cln) {
-    cln->handler = clean_voms_ac;
-    cln->data = r;
-  } else {
-    ngx_log_error(
-        NGX_LOG_ERR, r->connection->log, 0, "ngx_http_cleanup_add() failed");
-  }
-}
-
-static MaybeVomsAc* get_voms_ac_from_cache(ngx_http_request_t* r)
-{
-  return static_cast<MaybeVomsAc*>(
-      ngx_http_get_module_ctx(r, ngx_http_voms_module));
-}
-
-static MaybeVomsAc const& get_voms_ac(ngx_http_request_t* r)
-{
-  ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "%s", __FUNCTION__);
-
-  MaybeVomsAc* acp = get_voms_ac_from_cache(r);
-
-  if (!acp) {
-    acp = new MaybeVomsAc(retrieve_voms_ac_from_proxy(r));
-    cache_voms_ac(r, acp);
-  }
-
-  return *acp;
-}
-
-static ngx_int_t get_voms_fqans(ngx_http_request_t* r,
-                                ngx_http_variable_value_t* v,
-                                uintptr_t)
-{
-  ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "%s", __FUNCTION__);
-
-  v->not_found = 1;
-  v->valid = 0;
-
-  auto& ac = get_voms_ac(r);
-
-  if (!ac) {
-    ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "get_voms_ac() failed");
-    return NGX_OK;
-  }
-
-  auto fqans = boost::algorithm::join(ac->fqans, ",");
-
-  auto data = static_cast<u_char*>(ngx_pnalloc(r->pool, fqans.size()));
-  if (!data) {
-    ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "ngx_pnalloc() failed");
-    return NGX_OK;
-  }
-  ngx_memcpy(data, fqans.c_str(), fqans.size());
-
-  v->data = data;
-  v->len = fqans.size();
-  v->valid = 1;
-  v->not_found = 0;
-  v->no_cacheable = 0;
-  return NGX_OK;
-}
-
-static ngx_int_t get_voms_user(ngx_http_request_t* r,
-                               ngx_http_variable_value_t* v,
-                               uintptr_t)
-{
-  ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "%s", __FUNCTION__);
-
-  v->not_found = 1;
-  v->valid = 0;
-
-  auto& ac = get_voms_ac(r);
-
-  if (!ac) {
-    ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "get_voms_ac() failed");
-    return NGX_OK;
-  }
-
-  auto const& user = ac->user;
-
-  auto data = static_cast<u_char*>(ngx_pnalloc(r->pool, user.size()));
-  if (!data) {
-    ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "ngx_pnalloc() failed");
-    return NGX_OK;
-  }
-  ngx_memcpy(data, user.c_str(), user.size());
-
-  v->data = data;
-  v->len = user.size();
-  v->valid = 1;
-  v->not_found = 0;
-  v->no_cacheable = 0;
-  return NGX_OK;
-}
-
-ngx_int_t get_voms(ngx_http_request_t* r,
-                   ngx_http_variable_value_t* v,
-                   uintptr_t data)
-{
-  // to show that get_voms gets called only once, even if the variable is used
-  // twice in the configuration file
-  static int count = 0;
-  assert(count == 0);
-  ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "get_voms");
-
-  {
-    auto t0 = std::chrono::high_resolution_clock::now();
-
-    static ngx_str_t var = ngx_string("ssl_client_raw_cert");
-    u_char unused[sizeof("ssl_client_raw_cert")];
-
-    auto hash = ngx_hash_strlow(unused, var.data, var.len);
-
-    ngx_http_variable_value_t* raw_cert = ngx_http_get_variable(r, &var, hash);
-
-    // da rivedere gli errori ritornati (sempre che siano errori)
-
-    if (!raw_cert || raw_cert->not_found || !raw_cert->valid) {
-      ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "invalid raw_cert");
-      return NGX_OK;
-    }
-
-    BioPtr bio{BIO_new(BIO_s_mem()), BIO_free};
-    if (BIO_write(bio.get(), raw_cert->data, raw_cert->len) != raw_cert->len) {
-      ngx_log_error(NGX_LOG_DEBUG, r->connection->log, 0, "BIO_write() failed");
-      return NGX_OK;
-    }
-
-    X509Ptr x509{PEM_read_bio_X509(bio.get(), NULL, NULL, NULL), X509_free};
-    if (!x509) {
-      ngx_log_error(
-          NGX_LOG_DEBUG, r->connection->log, 0, "PEM_read_bio_X509() failed");
-      return NGX_OK;
-    }
-
-    auto t1 = std::chrono::high_resolution_clock::now();
-
-    ngx_log_error(NGX_LOG_DEBUG,
-                  r->connection->log,
-                  0,
-                  "time 1: %f us",
-                  std::chrono::duration<double, std::micro>(t1 - t0).count());
-
-    ngx_log_error(NGX_LOG_DEBUG,
-                  r->connection->log,
-                  0,
-                  "raw_cert: %s",
-                  to_string(raw_cert).c_str());
-  }
-
-  v->valid = 1;
-  v->no_cacheable = 1;
-  v->not_found = 0;
-
-  v->data = (u_char*)"VOMS";
-  v->len = 4;
-
-  return NGX_OK;
-}

rpm/addPatchToNginxSpec.sh

+#!/usr/bin/env bash
+
+set -ex
+
+# Add the httpg patch
+# Set the nginx spec file with the httpg patch
+PATCH_NAME="nginx-httpg_no_delegation.patch"
+SPEC_FILE="${HOME}/rpmbuild/SPECS/nginx.spec"
+if grep --extended-regexp --quiet "^Patch.*: $PATCH_NAME" "$SPEC_FILE"; then
+  >&2 echo "The patch $PATCH_NAME is already included in the spec file $SPEC_FILE"
+  exit 0
+fi
+# Copy the patch in the rpmbuild directory
+cp ${CI_PROJECT_DIR}/${PATCH_NAME} ~/rpmbuild/SOURCES/
+pushd ~/rpmbuild/SOURCES/
+# Find the highest existing Patch number in the spec file
+LAST_PATCH_NUM=$(grep -oP "^Patch\K[0-9]+" $SPEC_FILE | sort -n | tail -1)
+if [ -z "$LAST_PATCH_NUM" ]; then
+  # There are no existing patches: find the highest Source number in the spec file
+  LAST_SOURCE_NUM=$(grep -oP "^Source\K[0-9]+" $SPEC_FILE | sort -n | tail -1)
+  # Add the patch to the spec file after the last Source
+  sed -i.backup "/^Source${LAST_SOURCE_NUM}/a Patch0: ${PATCH_NAME}" "${SPEC_FILE}"
+else
+  # Add the new patch to the spec file after the last Patch
+  sed -i.backup "/^Patch${LAST_PATCH_NUM}/a Patch$((LAST_PATCH_NUM + 1)): ${PATCH_NAME}" "${SPEC_FILE}"
+fi
+# Add httpg to release
+sed -i '/%define base_release/ s/ngx/httpg/' "${SPEC_FILE}"
+
+diff "${SPEC_FILE}.backup" "${SPEC_FILE}" || true
+
+popd