sit-inbox.sh

gistfile1.txt

#! /usr/bin/env bash

cfg=/tmp/sit-inbox.json
checkmark="✔"

echo Starting up sit-inbox

if [ -f /etc/sit-inbox/config.toml ]; then
        echo "Reading config /etc/sit-inbox.toml"
        toml2json /etc/sit-inbox/config.toml > "${cfg}"
else
        echo /etc/sit-inbox/config.toml not found, aborting
        exit 1
fi

# $1 - inbox
setup_files () {
echo -n "cron "        
default_repository=$(jq -r '.inbox.'$1'.default_repository // ""' ${cfg})
path=$(jq -r '.inbox.'$1'.path // "/path/does/not/exist"' ${cfg})
mkdir -p "${path}"
cron=$(jq -r '.inbox.'$1'.cron // "*/5 * * * *"' $cfg)
crontab -l > /tmp/crontab
cat >>/tmp/crontab <<-EOF
${cron} INBOX=${path} REPOSITORY=${default_repository} "/files.sh"
@reboot INBOX=${path} REPOSITORY=${default_repository} "/files.sh"
EOF
crontab /tmp/crontab

}

# $1 - inbox
setup_email () {
retriever=$(jq -r ".inbox."$1".retriever" ${cfg})
server=$(jq -r ".inbox."$1".server" ${cfg})
username=$(jq -r ".inbox."$1".username" ${cfg})
echo -n "retriever "
# Retriever: required
cat >"$HOME/.getmail/$1" <<-EOF 
[retriever]
type = ${retriever}
server = ${server}
username = ${username}
EOF
port=$(jq -r 'if .inbox.'$1'.port == null then "# no `port` specified" else "port = \(.inbox.'$1'.port)" end' $cfg)
password=$(jq -r 'if .inbox.'$1'.password == null then "# no `password` specified" else "password = \(.inbox.'$1'.password)" end' $cfg)
password_command=$(jq -r 'if .inbox.'$1'.password_command == null then "# no `password_command` specified" else "password_command = \(.inbox.'$1'.password_command)" end' $cfg | sed -e 's/\[\([^]]*\)\]/( \1 )/g')
# Retriever: optional
cat >>"$HOME/.getmail/$1" <<-EOF 
${port}
${password}
${password_command}
EOF
echo -n "maildrop "
maildrop=$(jq -r '.inbox.'$1'.maildrop // ""' ${cfg})
maildrop_f="/var/run/maildroprc_$1"
echo -n ${maildrop} > ${maildrop_f}
if [ -z "${maildrop}" ]; then
        cat /maildroprc >> "${maildrop_f}"
fi
chmod 0600 "${maildrop_f}"
# Destination
cat >>"$HOME/.getmail/$1" <<-EOF 
[destination]
type = MDA_external
path = /usr/local/bin/maildrop
arguments = ( "${maildrop_f}", )
allow_root_commands = true
EOF
echo -n "cron "
default_repository=$(jq -r '.inbox.'$1'.default_repository // ""' ${cfg})
cat >>"/usr/bin/getmail.$1" <<-EOF
#! /usr/bin/env bash
export REPOSITORY=${default_repository}
setlock -n "/var/run/getmail.$1" /usr/bin/getmail --rcfile="$HOME/.getmail/$1" --getmaildir=/var/run/oldmail -n
EOF
chmod +x "/usr/bin/getmail.$1"
cron=$(jq -r '.inbox.'$1'.cron // "*/5 * * * *"' $cfg)
crontab -l > /tmp/crontab
cat >>/tmp/crontab <<-EOF
${cron} "/usr/bin/getmail.$1"
@reboot "/usr/bin/getmail.$1"
EOF
crontab /tmp/crontab
}

#1 - repo
setup_git () {
branch=$(jq -r '.repository.'$1'.branch // "master"' ${cfg})
src=$(jq -r '.repository.'$1'.source' ${cfg})
if [ -d "/var/lib/repositories/$1" ]; then
        echo -n "updating "
        git -C "/var/lib/repositories/$1" pull -f -q "${src}" "${branch}" || exit 1
else
        echo -n "cloning "
        git clone -q "${src}" -b "${branch}" "/var/lib/repositories/$1"  || exit 1
fi
username=$(jq -r '.repository.'$1'.username // "sit-inbox"' ${cfg})
email=$(jq -r '.repository.'$1'.email // "sit-inbox@sit.fyi"' ${cfg})
git -C "/var/lib/repositories/$1" config user.name ${username}
git -C "/var/lib/repositories/$1" config user.email ${email}
echo -n "script "
cat >"/usr/bin/email.${1}" <<-EOF
#! /usr/bin/env bash
file=\$(mktemp)
cat <&0 "\${file}"
temp=$(mktemp -d)


git -C "/var/lib/repositories/$1" pull -f -q "${src}" "${branch}"
git -C "/var/lib/repositories/$1" branch -q -D inbox 2>/dev/null >/dev/null
git -C "/var/lib/repositories/$1" checkout -b inbox

git -C "/var/lib/repositories/$1" am -3 "\${file}" 
result=\$?

if [ "\${result}" == "0" ]; then
        git -C "/var/lib/repositories/$1" push ${src} inbox:${branch} 
else
        git -C "/var/lib/repositories/$1" am --abort 2>/dev/null
fi


git -C "/var/lib/repositories/$1" checkout ${branch}
git -C "/var/lib/repositories/$1" branch -q -D inbox

rm -rf "\${temp}"
rm -f "\${file}"
EOF
chmod +x "/usr/bin/email.$1"
}


echo Setting up inboxes:

for inbox in $(jq -r ".inbox | keys | .[]" $cfg); do
        type=$(jq -r ".inbox."${inbox}".type" $cfg)
        echo -n "- ${inbox} (type: ${type}): "
        case ${type} in
                email)
                        mkdir -m 0700 -p $HOME/.getmail
                        setup_email "${inbox}"
                        echo $checkmark
                        ;;
                files)
                        setup_files "${inbox}"
                        echo $checkmark
                        ;;
                *)
                        echo "ERROR: Unknown type"
                        exit 1
        esac
done

echo Setting up repositories:

for repo in $(jq -r ".repository | keys | .[]" $cfg); do
        type=$(jq -r '.repository.'${repo}'.type // "git"' $cfg)
        echo -n "- ${repo} (type: ${type}): "
        case ${type} in
                git)
                        setup_git "${repo}"
                        echo $checkmark
                        ;;
                *)
                        echo "ERROR: Unknown type"
                        exit 1
        esac
done

echo
echo "OK: The inbox is up and running"
echo 


crond -f || exit 1