vulndb/devtools/lib.sh

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# Copyright 2021 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Library of useful bash functions and variables.
RED=; GREEN=; YELLOW=; NORMAL=;
MAXWIDTH=0
if tput setaf 1 >& /dev/null; then
RED=`tput setaf 1`
GREEN=`tput setaf 2`
YELLOW=`tput setaf 3`
NORMAL=`tput sgr0`
MAXWIDTH=$(( $(tput cols) - 2 ))
fi
EXIT_CODE=0
info() { echo -e "${GREEN}$@${NORMAL}" 1>&2; }
warn() { echo -e "${YELLOW}$@${NORMAL}" 1>&2; }
err() { echo -e "${RED}$@${NORMAL}" 1>&2; EXIT_CODE=1; }
die() {
err $@
exit 1
}
dryrun=false
# runcmd prints an info log describing the command that is about to be run, and
# then runs it. It sets EXIT_CODE to non-zero if the command fails, but does not exit
# the script.
runcmd() {
msg="$@"
if $dryrun; then
echo -e "${YELLOW}dryrun${GREEN}\$ $msg${NORMAL}"
return 0
fi
# Truncate command logging for narrow terminals.
# Account for the 2 characters of '$ '.
if [[ $MAXWIDTH -gt 0 && ${#msg} -gt $MAXWIDTH ]]; then
msg="${msg::$(( MAXWIDTH - 3 ))}..."
fi
echo -e "$@\n" 1>&2;
$@ || err "command failed"
}
# tfvar NAME returns the value of NAME in the terraform.tfvars file.
tfvar() {
local name=$1
awk '$1 == "'$name'" { print substr($3, 2, length($3)-2) }' terraform/terraform.tfvars
}
worker_url() {
local env=$1
case $env in
dev) echo https://dev-vuln-worker-ku6ias4ydq-uc.a.run.app;;
prod) echo https://prod-vuln-worker-cf7lo3kiaq-uc.a.run.app;;
*) die "usage: $0 (dev | prod)";;
esac
}
impersonation_service_account() {
local env=$1
case $env in
dev) echo impersonate-for-iap@go-discovery-exp.iam.gserviceaccount.com;;
prod) echo impersonate@go-vuln.iam.gserviceaccount.com;;
*) die "usage: $0 (dev | prod)";;
esac
}
impersonation_token() {
local env=$1
local oauth_client_id=$(tfvar ${env}_client_id)
if [[ $oauth_client_id = '' ]]; then
die "${env}_client_id is missing from your terraform.tfvars file"
fi
gcloud --impersonate-service-account $(impersonation_service_account $env) \
auth print-identity-token \
--audiences $oauth_client_id \
--include-email
}