move to own project

Library/LaunchDaemons/com.caddyserver.web.plist

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>Label</key>
+	<string>Caddy</string>
+	<key>ProgramArguments</key>
+	<array>
+		<string>/usr/local/bin/caddy</string>
+		<string>-agree</string>
+		<string>-conf</string>
+		<string>/etc/caddy/Caddyfile</string>
+		<string>-root</string>
+		<string>/var/tmp</string>
+	</array>
+	<key>EnvironmentVariables</key>
+	<dict>
+		<key>CADDYPATH</key>
+		<string>/etc/ssl/caddy</string>
+	</dict>
+
+	<key>UserName</key>
+	<string>root</string>
+	<key>GroupName</key>
+	<string>wheel</string>
+	<key>InitGroups</key>
+	<true/>
+
+	<key>RunAtLoad</key>
+	<true/>
+	<key>KeepAlive</key>
+	<dict>
+		<key>Crashed</key>
+		<true/>
+	</dict>
+
+	<key>SoftResourceLimits</key>
+	<dict>
+		<key>NumberOfFiles</key>
+		<integer>8192</integer>
+	</dict>
+	<key>HardResourceLimits</key>
+	<dict/>
+
+	<key>WorkingDirectory</key>
+	<string>/etc/ssl/caddy</string>
+
+	<key>StandardErrorPath</key>
+	<string>/var/log/caddy/error.log</string>
+	<key>StandardOutPath</key>
+	<string>/var/log/caddy/info.log</string>
+</dict>
+</plist>

README.md

@@ -0,0 +1,65 @@
+Caddy Installer
+---------------
+
+Works on
+
+  * Ubuntu Linux
+  * macOS Sierra
+  * probably lots of others
+
+Supports
+
+  * systemd (Ubuntu, Fedora, Arch, etc)
+  * launchd (OS X, macOS, Darwin)
+
+Install
+-------
+
+Yes... you install the installer
+
+```bash
+curl -L https://git.daplie.com/Daplie/daplie-snippets/raw/master/caddy-installer/install-caddy -o install-caddy
+sudo mv install-caddy /usr/local/bin/install-caddy
+sudo chmod a+x /usr/local/bin/install-caddy
+```
+
+Usage
+-----
+
+```
+install-caddy --help
+
+Usage: install-caddy [plugin1,plugin2,...]
+
+Optional arguments (defaults shown)
+  --os darwin      # any of windows darwin linux freebsd openbsd
+  --arch amd64     # any of arm64 amd64 386 armv5 armv6l armv7l
+
+Features:
+DNS,awslambda,cors,expires,filemanager,filter,git,hugo,ipfilter,jsonp,jwt,locale,mailout,minify,multipass,prometheus,ratelimit,realip,search,upload,cloudflare,digitalocean,dnsimple,dyn,gandi,googlecloud,linode,namecheap,ovh,rfc2136,route53,vultr
+```
+
+Caveats
+-------
+
+### all platforms
+
+`go` (in which `caddy` is written) doesn't support privilege deescalation
+(running on root to bind to port 80 and 443 and then switching to a non-root user).
+
+This isn't usually a problem, however, because the launchers (systemd et al) usually do.
+
+### darwin / macOS / OS X
+
+* `launchd` doesn't support privilege deescalation
+* `authbind` doesn't work on recent versions of OS X
+
+However, you can use [ipfw](https://apple.stackexchange.com/questions/37418/how-can-i-open-port-80-so-a-non-root-process-can-bind-to-it) to locally port-forward.
+
+Also, `launchd` is a pain to configure.
+There's not much in the way of official documuntation...
+but there is some [great unofficial documentation](http://www.launchd.info/)
+and [LaunchControl](http://www.soma-zone.com/LaunchControl/)
+([direct download](http://www.soma-zone.com/download/files/LaunchControl_1.30.1.tar.bz2))
+makes it actually quite easy.
+(ignore that the site looks like a 90s spam site - much like MakeMKV - it's actually legit)

etc/systemd/system/caddy.service

@@ -0,0 +1,62 @@
+[Unit]
+Description=Caddy HTTP/2 web server
+Documentation=https://caddyserver.com/docs
+After=network-online.target
+Wants=network-online.target systemd-networkd-wait-online.service
+
+[Service]
+; Restart on crash (bad signal), but not on 'clean' failure (error exit code)
+Restart=on-abnormal
+; Allow up to 3 restarts within 10 seconds
+; (it's unlikely that a user or properly-running script will do this)
+StartLimitInterval=10
+StartLimitBurst=3
+
+; User and group the process will run as
+; (www-data is the de facto standard on most systems)
+User=www-data
+Group=www-data
+
+; Letsencrypt-issued certificates will be written to this directory.
+Environment=CADDYPATH=/etc/ssl/caddy
+
+; Always set "-root" to something safe in case it gets forgotten in the Caddyfile.
+WorkingDirectory=/etc/ssl/caddy
+ExecStart=/usr/local/bin/caddy -log stdout -agree=true -conf=/etc/caddy/Caddyfile -root=/var/tmp
+ExecReload=/bin/kill -USR1 $MAINPID
+
+; Limit the number of file descriptors; see `man systemd.exec` for more limit settings.
+LimitNOFILE=1048576
+; Unmodified caddy is not expected to use more than that.
+LimitNPROC=64
+
+; Use private /tmp and /var/tmp, which are discarded after caddy stops.
+PrivateTmp=true
+; Use a minimal /dev
+PrivateDevices=true
+; Hide /home, /root, and /run/user. Nobody will steal your SSH-keys.
+ProtectHome=true
+; Make /usr, /boot, /etc and possibly some more folders read-only.
+ProtectSystem=full
+; … except /etc/ssl/caddy, because we want Letsencrypt-certificates there
+;   and /var/log/caddy, because we want a place where logs can go.
+;   This merely retains r/w access rights, it does not add any new. Must still be writable on the host!
+ReadWritePaths=/etc/ssl/caddy /var/log/caddy
+
+; The following additional security directives only work with systemd v229 or later.
+; They further retrict privileges that can be gained by caddy. Uncomment if you like.
+; Note that you may have to add capabilities required by any plugins in use.
+CapabilityBoundingSet=CAP_NET_BIND_SERVICE
+AmbientCapabilities=CAP_NET_BIND_SERVICE
+NoNewPrivileges=true
+
+; Caveat: Some plugins need additional capabilities. Add them to both lines above.
+; - plugin "upload" needs: CAP_LEASE
+
+[Install]
+WantedBy=multi-user.target
+
+; Learn more:
+;
+;   * systemd: https://www.freedesktop.org/software/systemd/man/systemd.exec.html
+;   * why caddy's systemd file is what it is https://github.com/mholt/caddy/pull/1566/files

etc/tmpfiles.d/caddy.conf

@@ -0,0 +1,10 @@
+# /etc/tmpfiles.d/caddy.conf
+# See https://www.freedesktop.org/software/systemd/man/tmpfiles.d.html
+
+#Type Path            Mode UID      GID      Age Argument
+d /etc/caddy          0755 www-data www-data
+d /etc/ssl/caddy      0750 www-data www-data
+d /etc/ssl/caddy/acme 0750 www-data www-data
+d /etc/ssl/caddy/oscp 0750 www-data www-data
+d /var/log/caddy      0750 www-data www-data
+#d /run/caddy          0755 www-data www-data

install-caddy

@@ -0,0 +1,423 @@
+#!/bin/bash
+
+# https://caddyserver.com/download
+# https://caddyserver.com/download/build?os=darwin&arch=amd64&features=DNS,awslambda,cors,expires,filemanager,filter,git,hugo,ipfilter,jsonp,jwt,locale,mailout,minify,multipass,prometheus,ratelimit,realip,search,upload,cloudflare,digitalocean,dnsimple,dyn,gandi,googlecloud,linode,namecheap,ovh,rfc2136,route53,vultr
+
+installer_base="https://git.daplie.com/Daplie/daplie-snippets/raw/master"
+caddy_systemd_service="$installer_base/etc/systemd/system/caddy.service"
+caddy_systemd_tmpfiles="$installer_base/etc/tmpfiles.d/caddy.conf"
+caddy_launchd_service="$installer_base/Library/LaunchDaemons/com.caddyserver.web.plist"
+
+all_oses="windows,darwin,linux,freebsd,openbsd"
+all_arches="arm64,amd64,386,armv5,armv6l,armv7l"
+all_plugins="DNS,awslambda,cors,expires,filemanager,filter,git,hugo,ipfilter,jsonp,jwt,locale,mailout,minify,multipass,prometheus,ratelimit,realip,search,upload,cloudflare,digitalocean,dnsimple,dyn,gandi,googlecloud,linode,namecheap,ovh,rfc2136,route53,vultr"
+
+caddy_os=""
+default_os=""
+caddy_arch=""
+default_arch=""
+caddy_arm=""
+caddy_features=""
+caddy_user=www-data
+caddy_group=www-data
+install_path="/usr/local/bin"
+http_get=""
+http_opts=""
+http_out=""
+
+caddy_bin="caddy"
+caddy_dl_ext=".tar.gz"
+
+detect_http_get()
+{
+  if type -p curl >/dev/null 2>&1; then
+    http_get="curl"
+    http_opts="-fsSL"
+    http_out="-o"
+    #curl -fsSL "$caddy_url" -o "$PREFIX/tmp/$caddy_pkg"
+  elif type -p wget >/dev/null 2>&1; then
+    http_get="wget"
+    http_opts="--quiet"
+    http_out="-O"
+    #wget --quiet "$caddy_url" -O "$PREFIX/tmp/$caddy_pkg"
+  else
+    echo "Aborted, could not find curl or wget"
+    return 7
+  fi
+}
+
+detect_arch()
+{
+  trap 'echo -e "Aborted, error $? in command: $BASH_COMMAND"; trap ERR; return 1' ERR
+
+  #########################
+  # Which OS and version? #
+  #########################
+
+  default_arch="unknown"
+
+  # NOTE: `uname -m` is more accurate and universal than `arch`
+  # See https://en.wikipedia.org/wiki/Uname
+  unamem="$(uname -m)"
+  if [[ $unamem == *aarch64* ]]; then
+    default_arch="arm64"
+  elif [[ $unamem == *64* ]]; then
+    default_arch="amd64"
+  elif [[ $unamem == *86* ]]; then
+    default_arch="386"
+  elif [[ $unamem == *armv5* ]]; then
+    default_arch="armv5"
+  elif [[ $unamem == *armv6l* ]]; then
+    default_arch="armv6l"
+  elif [[ $unamem == *armv7l* ]]; then
+    default_arch="armv7l"
+  else
+    default_arch="$unamem"
+  fi
+
+  trap ERR
+}
+
+detect_os()
+{
+  trap 'echo -e "Aborted, error $? in command: $BASH_COMMAND"; trap ERR; return 1' ERR
+
+  default_os="unsupported"
+
+  uname="$(uname)"
+  #declare -u unameu=$uname # requires bash v4+, not supported on macOS
+  unameu="$(echo $uname | tr '/a-z/' '/A-Z/')"
+  if [[ ${unameu} == *DARWIN* ]]; then
+    default_os="darwin"
+    vers=$(sw_vers)
+    version=${vers##*ProductVersion:}
+    IFS='.' read OSX_MAJOR OSX_MINOR _ <<<"$version"
+
+    # Major
+    if ((OSX_MAJOR < 10)); then
+      echo "Aborted, unsupported OS X version (9-)"
+      return 3
+    fi
+    if ((OSX_MAJOR > 10)); then
+      echo "Aborted, unsupported OS X version (11+)"
+      return 4
+    fi
+
+    # Minor
+    if ((OSX_MINOR < 5)); then
+      echo "Aborted, unsupported OS X version (10.5-)"
+      return 5
+    fi
+  elif [[ ${unameu} == *LINUX* ]]; then
+    default_os="linux"
+  elif [[ ${unameu} == *FREEBSD* ]]; then
+    default_os="freebsd"
+  elif [[ ${unameu} == *OPENBSD* ]]; then
+    default_os="openbsd"
+  elif [[ ${unameu} == *WIN* ]]; then
+    # Should catch cygwin
+    default_os="windows"
+    caddy_dl_ext=".zip"
+    caddy_bin=$caddy_bin.exe
+  else
+    default_os="$uname"
+  fi
+
+  trap ERR
+}
+
+detect_target()
+{
+  trap 'echo -e "Aborted, error $? in command: $BASH_COMMAND"; trap ERR; return 1' ERR
+
+  detect_arch
+  detect_os
+
+  while [[ $# -gt 0 ]]; do
+    key="$1"
+    case $key in
+      --arch)
+        caddy_arch="$2"
+        shift # past argument
+      ;;
+      --os)
+        caddy_os="$2"
+        shift # past argument
+      ;;
+      -h|--help)
+        echo ""
+        echo "Usage: install-caddy [plugin1,plugin2,...]"
+        echo ""
+        echo "Optional arguments (defaults shown)"
+        echo "  --os ${default_os} # options: $(echo $all_oses | tr "," " ")"
+        echo "  --arch ${default_arch}${caddy_arm} # options: $(echo $all_arches | tr "," " ")"
+        echo ""
+        echo "Features:"
+        echo "$(echo $all_plugins)"
+        echo ""
+        exit 0
+      ;;
+      -*)
+        # unknown argument
+        echo "unrecognized argument '$1'"
+        exit 13
+      ;;
+      *)
+        # unknown value
+        if [ -z "${caddy_features}" ]; then
+          caddy_features=$1
+        else
+          echo "unrecognized value '$1'"
+          exit 1
+        fi
+      ;;
+    esac
+  shift # past argument or value
+  done
+
+  # use commandline-specified caddy os or the host OS
+  if [ -z "$caddy_os" ]; then
+    caddy_os=$default_os
+  fi
+
+  if [[ ${caddy_os} == "darwin" ]]; then
+    caddy_user=_www
+    caddy_group=_www
+    caddy_dl_ext=".zip"
+  elif [[ ${caddy_os} == "linux" ]]; then
+    ignore=true
+  elif [[ ${caddy_os} == "freebsd" ]]; then
+    ignore=true
+  elif [[ ${caddy_os} == "openbsd" ]]; then
+    ignore=true
+  elif [[ ${caddy_os} == "windows" ]]; then
+    caddy_dl_ext=".zip"
+    caddy_bin=$caddy_bin.exe
+  else
+    echo "Aborted, unsupported or unknown os: $caddy_os"
+    return 6
+  fi
+
+  # use commandline-specified caddy arch or the host arch
+  if [ -z "$caddy_arch" ]; then
+    caddy_arch=$default_arch
+  fi
+
+  if [[ ${caddy_arch} == "arm64" ]]; then
+    ignore=true
+  elif [[ ${caddy_arch} == "amd64" ]]; then
+    ignore=true
+  elif [[ ${caddy_arch} == "386" ]]; then
+    ignore=true
+  elif [[ ${caddy_arch} == "armv5" ]]; then
+    caddy_arch="arm"
+    caddy_arm=5
+  elif [[ ${caddy_arch} == "armv6l" ]]; then
+    caddy_arch="arm"
+    caddy_arm=6
+  elif [[ ${caddy_arch} == "armv7l" ]]; then
+    caddy_arch="arm"
+    caddy_arm=7
+  else
+    echo "Aborted, unsupported or unknown architecture: $caddy_arch"
+    return 2
+  fi
+
+  trap ERR
+}
+
+download_caddy()
+{
+  trap 'echo -e "Aborted, error $? in command: $BASH_COMMAND"; trap ERR; return 1' ERR
+
+  ########################
+  # Download and extract #
+  ########################
+
+  echo "Downloading Caddy for $caddy_os/$caddy_arch$caddy_arm..."
+  #caddy_file="caddy_${caddy_os}_$caddy_arch${caddy_arm}_custom$caddy_dl_ext"
+  caddy_pkg="caddy_${caddy_os}_$caddy_arch${caddy_arm}_custom$caddy_dl_ext"
+  caddy_dir="caddy_${caddy_os}_$caddy_arch${caddy_arm}_custom"
+  # new.caddyserver.com
+  #caddy_url="https://caddyserver.com/download/$caddy_os/$caddy_arch$caddy_arm?plugins=$caddy_features"
+  # current caddyserver.com
+  caddy_url="https://caddyserver.com/download/build?os=$caddy_os&arch=$caddy_arch&arm=$caddy_arm&features=$caddy_features"
+  echo "$caddy_url"
+
+  # Use $PREFIX for compatibility with Termux on Android
+  rm -rf "$PREFIX/tmp/$caddy_pkg" "$PREFIX/tmp/$caddy_dir"
+
+  $http_get $http_opts "$caddy_url" $http_out "$PREFIX/tmp/$caddy_pkg"
+
+  echo "Extracting..."
+  case "$caddy_pkg" in
+    *.zip)    unzip -o "$PREFIX/tmp/$caddy_pkg" "$caddy_bin" -d "$PREFIX/tmp/$caddy_dir/" ;;
+    #*.tar.gz) tar -xzf "$PREFIX/tmp/$caddy_file" -C "$PREFIX/tmp/" "$caddy_bin" ;;
+    *.tar.gz) mkdir -p "$PREFIX/tmp/$caddy_dir/"; tar -xzf "$PREFIX/tmp/$caddy_pkg" -C "$PREFIX/tmp/$caddy_dir/" ;;
+  esac
+
+  trap ERR
+}
+
+install_caddy()
+{
+  trap 'echo -e "Aborted, error $? in command: $BASH_COMMAND"; trap ERR; return 1' ERR
+
+  if [ "$caddy_os" != "$default_os" ]; then
+    echo "caddy os does not match $default_os, skipping install"
+  fi
+  if [ "$caddy_arch" != "$default_arch" ]; then
+    echo "caddy arch does not match $default_arch, skipping install"
+  fi
+
+  # Termux on Android has $PREFIX set which already ends with /usr
+  if [[ -n "$ANDROID_ROOT" && -n "$PREFIX" ]]; then
+    install_path="$PREFIX/bin"
+  fi
+
+  # Fall back to /usr/bin if necessary
+  if [[ ! -d $install_path ]]; then
+    install_path="/usr/bin"
+  fi
+
+  # Not every platform has or needs sudo (see issue #40)
+  ((EUID)) && [[ -z "$ANDROID_ROOT" ]] && sudo_cmd="sudo"
+
+  # Back up existing caddy, if any
+  caddy_cur_ver="$("$caddy_bin" --version 2>/dev/null | cut -d ' ' -f2)"
+  if [[ $caddy_cur_ver ]]; then
+    # caddy of some version is already installed
+    caddy_path="$(type -p "$caddy_bin")"
+    caddy_backup="${caddy_path}_$caddy_cur_ver"
+    echo "Backing up $caddy_path to $caddy_backup"
+    echo "(Password may be required.)"
+    $sudo_cmd mv "$caddy_path" "$caddy_backup"
+  fi
+
+  echo "Putting caddy in $install_path (may require password)"
+  $sudo_cmd mv "$PREFIX/tmp/$caddy_dir/$caddy_bin" "$install_path/$caddy_bin"
+
+  $sudo_cmd mkdir -p $PREFIX/etc/caddy
+  if [ ! -f "$PREFIX/etc/caddy/Caddyfile" ] || [ -z "$(cat $PREFIX/etc/caddy/Caddyfile)" ]; then
+    cat <<'CADDY_EOF' >> $PREFIX/tmp/$caddy_dir/Caddyfile
+http://localhost {
+  root /srv/www/localhost
+}
+CADDY_EOF
+    $sudo_cmd mv "$PREFIX/tmp/$caddy_dir/Caddyfile" "$PREFIX/etc/caddy/Caddyfile"
+  fi
+
+  $sudo_cmd mkdir -p $PREFIX/etc/ssl/caddy
+  $sudo_cmd mkdir -p $PREFIX/var/log/caddy
+  $sudo_cmd mkdir -p $PREFIX/srv/www/localhost
+
+  $sudo_cmd chmod +x "$install_path/$caddy_bin"
+  $sudo_cmd chmod 755 $PREFIX/etc/caddy
+  $sudo_cmd chmod 755 $PREFIX/etc/caddy
+  $sudo_cmd chmod 750 $PREFIX/etc/ssl/caddy
+  $sudo_cmd chmod 750 $PREFIX/var/log/caddy
+  $sudo_cmd chmod 755 $PREFIX/srv/www
+  $sudo_cmd chmod 755 $PREFIX/srv/www/localhost
+
+  if [ ! -f "$PREFIX/srv/www/localhost/index.html" ] || [ -z "$(cat $PREFIX/srv/www/localhost)" ]; then
+    cat <<'CADDY_EOF' >> $PREFIX/tmp/$caddy_dir/index.html
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Welcome to Caddy!</title>
+  </head>
+  <body>
+    <h1>Welcome to Caddy!</h1>
+  </body>
+</html>
+CADDY_EOF
+    $sudo_cmd mv "$PREFIX/tmp/$caddy_dir/index.html" "$PREFIX/srv/www/localhost/index.html"
+  fi
+
+  if setcap_cmd=$(type -p setcap); then
+    $sudo_cmd $setcap_cmd cap_net_bind_service=+ep "$install_path/$caddy_bin"
+  fi
+  $sudo_cmd rm -- "$PREFIX/tmp/$caddy_pkg"
+
+  echo ""
+  # check installation
+  $caddy_bin --version
+
+  echo "Successfully installed"
+
+  echo ""
+  echo "Trying to set permissions to $caddy_user:$caddy_group"
+  echo '(if this fails please file a bug with the output of "uname -a" and "cat /etc/group")'
+
+  # TODO if this fails perhaps catch and create a www-data group?
+  # TODO grep $caddy_user $PREFIX/etc/passwd
+  # TODO grep $caddy_group $PREFIX/etc/group
+  # TODO adduser $caddy_user
+  $sudo_cmd chown -R $caddy_user:$caddy_group $PREFIX/etc/caddy
+  $sudo_cmd chown -R $caddy_user:$caddy_group $PREFIX/etc/ssl/caddy
+  $sudo_cmd chown -R $caddy_user:$caddy_group $PREFIX/var/log/caddy
+  $sudo_cmd chown -R $caddy_user:$caddy_group $PREFIX/srv/www
+
+  echo ""
+  echo "Successfully changed permissions"
+  echo ""
+
+  if [ -d "$PREFIX/etc/systemd/system" ]; then
+    echo ""
+    echo "Installing as systemd service"
+    echo ""
+    $http_get $http_opts "$caddy_systemd_service" $http_out $PREFIX/tmp/$caddy_dir/caddy.service
+    $sudo_cmd mv $PREFIX/tmp/$caddy_dir/caddy.service $PREFIX/etc/systemd/system/caddy.service
+    $sudo_cmd chown -R root:root $PREFIX/etc/systemd/system/caddy.service
+    $sudo_cmd chmod 644 $PREFIX/etc/systemd/system/caddy.service
+
+    $http_get $http_opts "$caddy_systemd_tmpfiles" $http_out $PREFIX/tmp/$caddy_dir/caddy.conf
+    $sudo_cmd mv $PREFIX/tmp/$caddy_dir/caddy.conf $PREFIX/etc/tmpfiles.d/caddy.conf
+    $sudo_cmd chown -R root:root $PREFIX/etc/tmpfiles.d/caddy.conf
+    $sudo_cmd chmod 644 $PREFIX/etc/tmpfiles.d/caddy.conf
+
+    $sudo_cmd systemctl daemon-reload
+    $sudo_cmd systemctl start caddy.service
+  elif [ -d "/Library/LaunchAgents" ]; then
+    echo ""
+    echo "Installing as launchd service"
+    echo ""
+    # See http://www.launchd.info/
+    $http_get $http_opts "$caddy_launchd_service" $http_out $PREFIX/tmp/$caddy_dir/com.caddyserver.web.plist
+    $sudo_cmd mv $PREFIX/tmp/$caddy_dir/com.caddyserver.web.plist /Library/LaunchAgents/com.caddyserver.web.plist
+    $sudo_cmd chown root:wheel /Library/LaunchAgents/com.caddyserver.web.plist
+    $sudo_cmd chmod 0644 /Library/LaunchAgents/com.caddyserver.web.plist
+    $sudo_cmd launchctl load -w /Library/LaunchAgents/com.caddyserver.web.plist
+  else
+    echo ""
+    echo "Unknown system service init type. You must install as a system service manually."
+    echo '(please file a bug with the output of "uname -a")'
+    echo ""
+  fi
+
+  # cleanup
+  $sudo_cmd rm -rf -- "$PREFIX/tmp/$caddy_dir/"
+
+  trap ERR
+}
+
+run()
+{
+  trap 'echo -e "Aborted, error $? in command: $BASH_COMMAND"; trap ERR; return 1' ERR
+
+  detect_http_get
+  detect_target "$@"
+  download_caddy "$@"
+
+  if [ -f "$PREFIX/tmp/$caddy_dir/install.sh" ]; then
+    chmod a+x $PREFIX/tmp/$caddy_dir/install.sh
+    $PREFIX/tmp/$caddy_dir/install.sh "$PREFIX/tmp/$caddy_dir" "$@"
+  else
+    install_caddy "$@"
+  fi
+
+  trap ERR
+  return 0
+}
+
+run "$@"