Michael Hoennig
9debaa1fc0
Co-authored-by: Michael Hoennig <michael@hoennig.de> Reviewed-on: #139 Reviewed-by: Timotheus Pokorra <timotheus.pokorra@hostsharing.net>
244 lines
8.4 KiB
Bash
Executable File
244 lines
8.4 KiB
Bash
Executable File
#!/bin/bash
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if [ "$2" == "--show-password" ]; then
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HSADMINNG_CAS_SHOW_PASSWORD=yes
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shift
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else
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HSADMINNG_CAS_SHOW_PASSWORD=
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fi
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if [ "$1" == "--trace" ]; then
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function trace() {
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echo "$*" >&2
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}
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function doCurl() {
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set -x
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curl --fail-with-body \
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--header "Authorization: $HSADMINNG_CAS_TICKET" \
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--header "assumed-roles: $HSADMINNG_CAS_ASSUME" \
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"$@"
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set +x
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}
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shift
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else
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function trace() {
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: # noop
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}
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function doCurl() {
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curl --fail-with-body --header "Authorization: $HSADMINNG_CAS_TICKET" "$@"
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}
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fi
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export HSADMINNG_CAS_ASSUME_HEADER
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if [ -f ~/.cas-curl-assume ]; then
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HSADMINNG_CAS_ASSUME="$(cat ~/.cas-curl-assume)"
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else
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HSADMINNG_CAS_ASSUME=
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fi
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if [ -z "$HSADMINNG_CAS_LOGIN" ] || [ -z "$HSADMINNG_CAS_VALIDATE" ] || \
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[ -z "$HSADMINNG_CAS_SERVICE_ID" ]; then
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cat >&2 <<EOF
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ERROR: environment incomplete
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please set the following environment variables:
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export HSADMINNG_CAS_LOGIN=https://login.hostsharing.net/cas/v1/tickets
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export HSADMINNG_CAS_VALIDATE=https://login.hostsharing.net/cas/proxyValidate
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export HSADMINNG_CAS_USERNAME=<<optionally, your username, or leave empty after '='>>
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export HSADMINNG_CAS_PASSWORD=<<optionally, your password, or leave empty after '='>>
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export HSADMINNG_CAS_SERVICE_ID=https://hsadminng.hostsharing.net:443/
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EOF
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exit 1
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fi
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function casCurlDocumentation() {
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cat <<EOF
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curl-wrapper utilizing CAS-authentication for hsadmin-ng
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usage: $0 [--trace] [--show-password] <<command>> [parameters]
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commands:
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EOF
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# filters out help texts (containing double-# and following lines with leading single-#) from the commands itself
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# (the '' makes sure that this line is not found, just the lines with actual help texts)
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sed -n '/#''#/ {x; p; x; s/#''#//; p; :a; n; /^[[:space:]]*#/!b; s/^[[:space:]]*#//; p; ba}' <$0
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}
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function casLogin() {
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# ticket granting ticket exists and not expired?
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if find ~/.cas-login-tgt -type f -size +0c -mmin -60 2>/dev/null | grep -q .; then
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return
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fi
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if [ -z "$HSADMINNG_CAS_USERNAME" ]; then
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read -e -p "Username: " HSADMINNG_CAS_USERNAME
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fi
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if [ -z "$HSADMINNG_CAS_PASSWORD" ]; then
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read -s -e -p "Password: " HSADMINNG_CAS_PASSWORD
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fi
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if [ "$HSADMINNG_CAS_SHOW_PASSWORD" == "--show-password" ]; then
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HSADMINNG_CAS_PASSWORD_DISPLAY=$HSADMINNG_CAS_PASSWORD
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else
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HSADMINNG_CAS_PASSWORD_DISPLAY="<<password hidden - use --show-password to show>>"
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fi
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# Do NOT use doCurl here! We do neither want to print the password nor pass a CAS service ticket.
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trace "+ curl --fail-with-body -s -i -X POST \
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-H 'Content-Type: application/x-www-form-urlencoded' \
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-d \"username=$HSADMINNG_CAS_USERNAME&password=$HSADMINNG_CAS_PASSWORD_DISPLAY\" \
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$HSADMINNG_CAS_LOGIN -o ~/.cas-login-tgt.response -D -"
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HSADMINNG_CAS_TGT=`curl --fail-with-body -s -i -X POST \
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-H 'Content-Type: application/x-www-form-urlencoded' \
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-d "username=$HSADMINNG_CAS_USERNAME&password=$HSADMINNG_CAS_PASSWORD" \
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$HSADMINNG_CAS_LOGIN -o ~/.cas-login-tgt.response -D - \
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| grep -i "^Location: " | sed -e 's/^Location: //' -e 's/\\r//'`
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if [ -z "$HSADMINNG_CAS_TGT" ]; then
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echo "ERROR: could not get ticket granting ticket" >&2
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cat ~/.cas-login-tgt.response >&2
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exit 1
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fi
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echo "$HSADMINNG_CAS_TGT" >~/.cas-login-tgt
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trace "$HSADMINNG_CAS_TGT"
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}
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function casLogout() {
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rm -f ~/.cas-login-tgt
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}
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function casTicket() {
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HSADMINNG_CAS_TGT=$(<~/.cas-login-tgt)
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if [[ -z "$HSADMINNG_CAS_TGT" ]]; then
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echo "ERROR: cannot get CAS ticket granting ticket for $HSADMINNG_CAS_USERNAME" >&2
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exit 1
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fi
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trace "CAS-TGT: $HSADMINNG_CAS_TGT"
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trace "fetching CAS service ticket"
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trace "curl -s -d \"service=$HSADMINNG_CAS_SERVICE_ID\" $HSADMINNG_CAS_TGT"
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HSADMINNG_CAS_TICKET=$(curl -s -d "service=$HSADMINNG_CAS_SERVICE_ID" $HSADMINNG_CAS_TGT)
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if [[ -z "$HSADMINNG_CAS_TICKET" ]]; then
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echo "ERROR: cannot get CAS service ticket" >&2
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exit 1
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fi
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echo $HSADMINNG_CAS_TICKET
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}
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function casValidate() {
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HSADMINNG_CAS_TICKET=`casTicket`
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trace "validating CAS-TICKET: $HSADMINNG_CAS_TICKET"
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# Do NOT use doCurl here! We do not pass a CAS service ticket.
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trace curl -i -s $HSADMINNG_CAS_VALIDATE?ticket=${HSADMINNG_CAS_TICKET}\&service=${HSADMINNG_CAS_SERVICE_ID}
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HSADMINNG_CAS_USER=`curl -i -s $HSADMINNG_CAS_VALIDATE?ticket=${HSADMINNG_CAS_TICKET}\&service=${HSADMINNG_CAS_SERVICE_ID} | grep -oPm1 "(?<=<cas:user>)[^<]+"`
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if [ -z "$HSADMINNG_CAS_USER" ]; then
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echo "validation failed" >&2
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exit 1
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fi
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echo "CAS-User: $HSADMINNG_CAS_USER"
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}
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case "${1,,}" in
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# -- generic commands --------------------------------------------------------------------------
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""|"-h"|"--help"|"help") ## prints documentation about commands and options
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casCurlDocumentation
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exit
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;;
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"env") ## prints all related HSADMINNG_CAS_... environment variables; use '--show-password' to show the password as well
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# example: cas-curl env --show-password
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echo "HSADMINNG_CAS_LOGIN: $HSADMINNG_CAS_LOGIN"
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echo "HSADMINNG_CAS_VALIDATE: $HSADMINNG_CAS_VALIDATE"
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echo "HSADMINNG_CAS_USERNAME: $HSADMINNG_CAS_USERNAME"
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if [ "$2" == "--show-password" ]; then
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echo "HSADMINNG_CAS_PASSWORD: $HSADMINNG_CAS_PASSWORD"
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elif [ -z "$HSADMINNG_CAS_PASSWORD" ]; then
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echo "HSADMINNG_CAS_PASSWORD: <<not given>>"
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else
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echo "HSADMINNG_CAS_PASSWORD: <<given, but hidden - add --show-password to show>>"
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fi
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echo "HSADMINNG_CAS_SERVICE_ID: $HSADMINNG_CAS_SERVICE_ID"
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;;
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# --- authentication-related commands ------------------------------------------------------------
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"login") ## reads username+password and fetches ticket granting ticket (bypasses HSADMINNG_CAS_USERNAME+HSADMINNG_CAS_PASSWORD)
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# example: cas-curl login
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casLogout
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export HSADMINNG_CAS_USERNAME=
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export HSADMINNG_CAS_PASSWORD=
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casLogin
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;;
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"assume") ## assumes the given comma-separated roles
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# example using object-id-name: cas-curl assume 'hs_office.relation#ExampleMandant-with-PARTNER-ExamplePartner:AGENT'
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# example using object-uuid: cas-curl assume 'hs_office.relation#1d3bc468-c5c8-11ef-9d0d-4751ecfda2b7:AGENT'
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shift
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if [ -z "$1" ]; then
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echo "ERROR: requires comma-separated list of roles to assume" >&2
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exit 1
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fi
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echo "$1" >~/.cas-curl-assume
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;;
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"unassume") ## do not assume any particular role anymore, use the plain user as RBAC subject
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rm ~/.cas-curl-assume
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;;
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"validate") ## validates current ticket granting ticket and prints currently logged in user
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casValidate
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;;
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"logout") ## logout, deletes ticket granting ticket
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casLogout
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;;
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# --- HTTP-commands ----------------------------------------------------------------------
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"get") ## HTTP GET, add URL as parameter
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# example: cas-curl GET http://localhost:8080/api/hs/office/partners/P-10003 | jq
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# hint: '| jq' is just for human-readable formatted JSON output
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shift
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casLogin
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HSADMINNG_CAS_TICKET=`casTicket`
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doCurl "$*"
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;;
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"post") ## HTTP POST, add curl options to specify the request body and the URL as last parameter
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# example: cas-curl POST \
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# -d '{ "prefix":"ttt", "reference":80001, "adminUserName":"admin@ttt.example.com" }' \
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# http://localhost:8080/api/test/customers | jq
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# hint: '| jq' is just for human-readable formatted JSON output
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shift
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casLogin
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HSADMINNG_CAS_TICKET=`casTicket`
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doCurl --header "Content-Type: application/json" -X POST "$@"
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;;
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"patch") ## HTTP PATCH, add curl options to specify the request body and the URL as last parameterparameter
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# example: cas-curl PATCH \
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# -d '{ "reference":80002 }' \
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# http://localhost:8080/api/test/customers/ae90ac2a-4728-4ca9-802e-a0d0108b2324 | jq
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# hint: '| jq' is just for human-readable formatted JSON output
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shift
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casLogin
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HSADMINNG_CAS_TICKET=`casTicket`
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doCurl --header "Content-Type: application/json" -X POST "$*"
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;;
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"delete") ## HTTP DELETE, add curl options to specify the request body and the URL as last parameter
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# example: cas-curl DELETE http://localhost:8080/api/hs/office/persons/ae90ac2a-4728-4ca9-802e-a0d0108b2324
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shift
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casLogin
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HSADMINNG_CAS_TICKET=`casTicket`
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curl -X POST "$@"
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;;
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*)
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cat >&2 <<EOF
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unknown command: '$1'
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valid commands: help, login, logout, validate, get, post, patch, delete
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EOF
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exit 1
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;;
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esac
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