Snippets for getinto.in

a.getinto.in.md

Code snippets which are used at https://getinto.in

docker-openresty-naxsi-nginx.conf

# nginx.conf  --  docker-openresty
#
# This file is installed to:
#   `/usr/local/openresty/nginx/conf/nginx.conf`
# and is the file loaded by nginx at startup,
# unless the user specifies otherwise.
#
# It tracks the upstream OpenResty's `nginx.conf`, but removes the `server`
# section and adds this directive:
#     `include /etc/nginx/conf.d/*.conf;`
#
# The `docker-openresty` file `nginx.vh.default.conf` is copied to
# `/etc/nginx/conf.d/default.conf`.  It contains the `server section
# of the upstream `nginx.conf`.
#
# See https://github.com/openresty/docker-openresty/blob/master/README.md#nginx-config-files
#

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    # See Move default writable paths to a dedicated directory (#119)
    # https://github.com/openresty/docker-openresty/issues/119
    client_body_temp_path /var/run/openresty/nginx-client-body;
    proxy_temp_path       /var/run/openresty/nginx-proxy;
    fastcgi_temp_path     /var/run/openresty/nginx-fastcgi;
    uwsgi_temp_path       /var/run/openresty/nginx-uwsgi;
    scgi_temp_path        /var/run/openresty/nginx-scgi;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;
    
    include /usr/local/openresty/nginx/conf/naxsi_core.rules;
    include /etc/nginx/conf.d/*.conf;
}

Nginx-Openresty-Dockerfile

# Dockerfile - Ubuntu Bionic
# https://github.com/openresty/docker-openresty

ARG RESTY_IMAGE_BASE="ubuntu"
ARG RESTY_IMAGE_TAG="bionic"

FROM ${RESTY_IMAGE_BASE}:${RESTY_IMAGE_TAG}

LABEL maintainer="Devarshi Sathiya <devarshisathiya5@gmail.com>"

# Docker Build Arguments
ARG RESTY_IMAGE_BASE="ubuntu"
ARG RESTY_IMAGE_TAG="bionic"
ARG RESTY_VERSION="1.15.8.2"
ARG NAXSI_VERSION="0.56"
ARG RESTY_LUAROCKS_VERSION="3.2.1"
ARG RESTY_OPENSSL_VERSION="1.1.0k"
ARG RESTY_PCRE_VERSION="8.43"
ARG RESTY_J="1"
ARG RESTY_CONFIG_OPTIONS="\
    --with-compat \
    --with-file-aio \
    --with-http_addition_module \
    --with-http_auth_request_module \
    --with-http_dav_module \
    --with-http_flv_module \
    --with-http_geoip_module=dynamic \
    --with-http_gunzip_module \
    --with-http_gzip_static_module \
    --with-http_image_filter_module=dynamic \
    --with-http_mp4_module \
    --with-http_random_index_module \
    --with-http_realip_module \
    --with-http_secure_link_module \
    --with-http_slice_module \
    --with-http_ssl_module \
    --with-http_stub_status_module \
    --with-http_sub_module \
    --with-http_v2_module \
    --with-http_xslt_module=dynamic \
    --with-ipv6 \
    --with-mail \
    --with-mail_ssl_module \
    --with-md5-asm \
    --with-pcre-jit \
    --with-sha1-asm \
    --with-stream \
    --with-stream_ssl_module \
    --with-threads \
    --add-module=/tmp/naxsi-${NAXSI_VERSION}/naxsi_src/ \
    "
ARG RESTY_CONFIG_OPTIONS_MORE=""
ARG RESTY_LUAJIT_OPTIONS="--with-luajit-xcflags='-DLUAJIT_NUMMODE=2 -DLUAJIT_ENABLE_LUA52COMPAT'"

ARG RESTY_ADD_PACKAGE_BUILDDEPS=""
ARG RESTY_ADD_PACKAGE_RUNDEPS=""
ARG RESTY_EVAL_PRE_CONFIGURE=""
ARG RESTY_EVAL_POST_MAKE=""

# These are not intended to be user-specified
ARG _RESTY_CONFIG_DEPS="--with-pcre \
    --with-cc-opt='-DNGX_LUA_ABORT_AT_PANIC -I/usr/local/openresty/pcre/include -I/usr/local/openresty/openssl/include' \
    --with-ld-opt='-L/usr/local/openresty/pcre/lib -L/usr/local/openresty/openssl/lib -Wl,-rpath,/usr/local/openresty/pcre/lib:/usr/local/openresty/openssl/lib' \
    "

LABEL resty_image_base="${RESTY_IMAGE_BASE}"
LABEL resty_image_tag="${RESTY_IMAGE_TAG}"
LABEL resty_version="${RESTY_VERSION}"
LABEL resty_luarocks_version="${RESTY_LUAROCKS_VERSION}"
LABEL resty_openssl_version="${RESTY_OPENSSL_VERSION}"
LABEL resty_pcre_version="${RESTY_PCRE_VERSION}"
LABEL resty_config_options="${RESTY_CONFIG_OPTIONS}"
LABEL resty_config_options_more="${RESTY_CONFIG_OPTIONS_MORE}"
LABEL resty_config_deps="${_RESTY_CONFIG_DEPS}"
LABEL resty_add_package_builddeps="${RESTY_ADD_PACKAGE_BUILDDEPS}"
LABEL resty_add_package_rundeps="${RESTY_ADD_PACKAGE_RUNDEPS}"
LABEL resty_eval_pre_configure="${RESTY_EVAL_PRE_CONFIGURE}"
LABEL resty_eval_post_make="${RESTY_EVAL_POST_MAKE}"


RUN DEBIAN_FRONTEND=noninteractive apt-get update \
    && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
        build-essential \
        ca-certificates \
        curl \
        gettext-base \
        libgd-dev \
        libgeoip-dev \
        libncurses5-dev \
        libperl-dev \
        libreadline-dev \
        libxslt1-dev \
        make \
        perl \
        unzip \
        zlib1g-dev \
        ${RESTY_ADD_PACKAGE_BUILDDEPS} \
        ${RESTY_ADD_PACKAGE_RUNDEPS} \
    && cd /tmp \
    && if [ -n "${RESTY_EVAL_PRE_CONFIGURE}" ]; then eval $(echo ${RESTY_EVAL_PRE_CONFIGURE}); fi \
    && curl -fSL https://www.openssl.org/source/openssl-${RESTY_OPENSSL_VERSION}.tar.gz -o openssl-${RESTY_OPENSSL_VERSION}.tar.gz \
    && tar xzf openssl-${RESTY_OPENSSL_VERSION}.tar.gz \
    && cd openssl-${RESTY_OPENSSL_VERSION} \
    && if [ $(echo ${RESTY_OPENSSL_VERSION} | cut -c 1-5) = "1.1.1" ] ; then \
        echo 'patching OpenSSL 1.1.1 for OpenResty' \
        && curl -s https://raw.githubusercontent.com/openresty/openresty/master/patches/openssl-1.1.1c-sess_set_get_cb_yield.patch | patch -p1 ; \
    fi \
    && if [ $(echo ${RESTY_OPENSSL_VERSION} | cut -c 1-5) = "1.1.0" ] ; then \
        echo 'patching OpenSSL 1.1.0 for OpenResty' \
        && curl -s https://raw.githubusercontent.com/openresty/openresty/ed328977028c3ec3033bc25873ee360056e247cd/patches/openssl-1.1.0j-parallel_build_fix.patch | patch -p1 \
        && curl -s https://raw.githubusercontent.com/openresty/openresty/master/patches/openssl-1.1.0d-sess_set_get_cb_yield.patch | patch -p1 ; \
    fi \
    && ./config \
      no-threads shared zlib -g \
      enable-ssl3 enable-ssl3-method \
      --prefix=/usr/local/openresty/openssl \
      --libdir=lib \
      -Wl,-rpath,/usr/local/openresty/openssl/lib \
    && make -j${RESTY_J} \
    && make -j${RESTY_J} install_sw \
    && cd /tmp \
    && curl -fSL https://ftp.pcre.org/pub/pcre/pcre-${RESTY_PCRE_VERSION}.tar.gz -o pcre-${RESTY_PCRE_VERSION}.tar.gz \
    && tar xzf pcre-${RESTY_PCRE_VERSION}.tar.gz \
    && cd /tmp/pcre-${RESTY_PCRE_VERSION} \
    && ./configure \
        --prefix=/usr/local/openresty/pcre \
        --disable-cpp \
        --enable-jit \
        --enable-utf \
        --enable-unicode-properties \
    && make -j${RESTY_J} \
    && make -j${RESTY_J} install \
    && cd /tmp \
    && curl -fSL https://github.com/openresty/openresty/releases/download/v${RESTY_VERSION}/openresty-${RESTY_VERSION}.tar.gz -o openresty-${RESTY_VERSION}.tar.gz \
    && tar xzf openresty-${RESTY_VERSION}.tar.gz \
    && curl -fSL https://github.com/nbs-system/naxsi/archive/${NAXSI_VERSION}.tar.gz -o naxsi-${NAXSI_VERSION}.tar.gz \
    && tar xzf naxsi-${NAXSI_VERSION}.tar.gz \
    && cd /tmp/openresty-${RESTY_VERSION} \
    && ls /tmp \
    && eval ./configure -j${RESTY_J} ${_RESTY_CONFIG_DEPS} ${RESTY_CONFIG_OPTIONS} ${RESTY_CONFIG_OPTIONS_MORE} ${RESTY_LUAJIT_OPTIONS} \
    && make -j${RESTY_J} \
    && make -j${RESTY_J} install \
    && cd /tmp \
    && rm -rf \
        openssl-${RESTY_OPENSSL_VERSION}.tar.gz openssl-${RESTY_OPENSSL_VERSION} \
        pcre-${RESTY_PCRE_VERSION}.tar.gz pcre-${RESTY_PCRE_VERSION} \
        openresty-${RESTY_VERSION}.tar.gz openresty-${RESTY_VERSION} \
    && curl -fSL https://luarocks.github.io/luarocks/releases/luarocks-${RESTY_LUAROCKS_VERSION}.tar.gz -o luarocks-${RESTY_LUAROCKS_VERSION}.tar.gz \
    && tar xzf luarocks-${RESTY_LUAROCKS_VERSION}.tar.gz \
    && cd luarocks-${RESTY_LUAROCKS_VERSION} \
    && ./configure \
        --prefix=/usr/local/openresty/luajit \
        --with-lua=/usr/local/openresty/luajit \
        --lua-suffix=jit-2.1.0-beta3 \
        --with-lua-include=/usr/local/openresty/luajit/include/luajit-2.1 \
    && make build \
    && make install \
    && cd /tmp \
    && if [ -n "${RESTY_EVAL_POST_MAKE}" ]; then eval $(echo ${RESTY_EVAL_POST_MAKE}); fi \
    && rm -rf luarocks-${RESTY_LUAROCKS_VERSION} luarocks-${RESTY_LUAROCKS_VERSION}.tar.gz \
    && if [ -n "${RESTY_ADD_PACKAGE_BUILDDEPS}" ]; then DEBIAN_FRONTEND=noninteractive apt-get remove -y --purge ${RESTY_ADD_PACKAGE_BUILDDEPS} ; fi \
    && DEBIAN_FRONTEND=noninteractive apt-get autoremove -y \
    && mkdir -p /var/run/openresty \
    && ln -sf /dev/stdout /usr/local/openresty/nginx/logs/access.log \
    && ln -sf /dev/stderr /usr/local/openresty/nginx/logs/error.log \
    && cp naxsi-${NAXSI_VERSION}/naxsi_config/naxsi_core.rules /usr/local/openresty/nginx/conf/ \
    && rm -rf /tmp/naxsi-${NAXSI_VERSION}.tar.gz /tmp/naxsi-${NAXSI_VERSION} 

# Add additional binaries into PATH for convenience
ENV PATH=$PATH:/usr/local/openresty/luajit/bin:/usr/local/openresty/nginx/sbin:/usr/local/openresty/bin

# Add LuaRocks paths
# If OpenResty changes, these may need updating:
#    /usr/local/openresty/bin/resty -e 'print(package.path)'
#    /usr/local/openresty/bin/resty -e 'print(package.cpath)'
ENV LUA_PATH="/usr/local/openresty/site/lualib/?.ljbc;/usr/local/openresty/site/lualib/?/init.ljbc;/usr/local/openresty/lualib/?.ljbc;/usr/local/openresty/lualib/?/init.ljbc;/usr/local/openresty/site/lualib/?.lua;/usr/local/openresty/site/lualib/?/init.lua;/usr/local/openresty/lualib/?.lua;/usr/local/openresty/lualib/?/init.lua;./?.lua;/usr/local/openresty/luajit/share/luajit-2.1.0-beta3/?.lua;/usr/local/share/lua/5.1/?.lua;/usr/local/share/lua/5.1/?/init.lua;/usr/local/openresty/luajit/share/lua/5.1/?.lua;/usr/local/openresty/luajit/share/lua/5.1/?/init.lua"

ENV LUA_CPATH="/usr/local/openresty/site/lualib/?.so;/usr/local/openresty/lualib/?.so;./?.so;/usr/local/lib/lua/5.1/?.so;/usr/local/openresty/luajit/lib/lua/5.1/?.so;/usr/local/lib/lua/5.1/loadall.so;/usr/local/openresty/luajit/lib/lua/5.1/?.so"

# Copy nginx configuration files
COPY nginx.conf /usr/local/openresty/nginx/conf/nginx.conf
COPY nginx.vh.default.conf /etc/nginx/conf.d/default.conf

CMD ["/usr/local/openresty/bin/openresty", "-g", "daemon off;"]

# Use SIGQUIT instead of default SIGTERM to cleanly drain requests
# See https://github.com/openresty/docker-openresty/blob/master/README.md#tips--pitfalls
STOPSIGNAL SIGQUIT

sum.html

<html>
<head>
  <script>
    // Check for wasm support.
    if (!('WebAssembly' in window)) {
      alert('you need a browser with wasm support enabled :(');
    }
    // Loads a WebAssembly dynamic library, returns a promise.
    // imports is an optional imports object
    function loadWebAssembly(filename, imports) {
      // Fetch the file and compile it
      return fetch(filename)
        .then(response => response.arrayBuffer())
        .then(buffer => WebAssembly.compile(buffer))
        .then(module => {
          // Create the imports for the module, including the
          // standard dynamic library imports
          imports = imports || {};
          imports.env = imports.env || {};
          imports.env.memoryBase = imports.env.memoryBase || 0;
          imports.env.tableBase = imports.env.tableBase || 0;
          if (!imports.env.memory) {
            imports.env.memory = new WebAssembly.Memory({ initial: 256 });
          }
          if (!imports.env.table) {
            imports.env.table = new WebAssembly.Table({ initial: 0, element: 'anyfunc' });
          }
          // Create the instance.
          return new WebAssembly.Instance(module, imports);
        });
    }
    // Main part of this example, loads the module and uses it.
    loadWebAssembly('sum.wasm')
      .then(instance => {
        var exports = instance.exports; // the exports of that instance
        var sum = exports.sum; // the "sum" function
        // now we are ready, set up the button so the user can run the code
        var button = document.getElementById('run');
        button.value = 'Call a method in the WebAssembly module';
        button.addEventListener('click', function() {
          var val1 = document.getElementById("val1").value;
          var val2 = document.getElementById("val2").value;
          alert(` sum of ${val1} and ${val2} is ` + sum(val1,val2));
        }, false);
      }
    );
  </script>
</head>
<body>
  <input type="textbox" id="val1" value="7"/>
  <input type="textbox" id="val2" value="5"/>
  <input type="button" id="run" value="(waiting for WebAssembly)"/>
</body>
</html>