mirror of
https://github.com/ivabus/binhost
synced 2024-09-20 00:20:49 +03:00
104 lines
2.4 KiB
Bash
104 lines
2.4 KiB
Bash
#!/usr/bin/env bash
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# SPDX-License-Identifier: MIT
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set -e
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print() {
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echo "$@" >&2
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}
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fail() {
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print "$@"
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exit 1
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}
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requireCommands() {
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for cmd in $*; do
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if ! command -v $cmd &> /dev/null; then
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fail "Cannot find required command: $cmd"
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fi
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done
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}
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requireCommands uname sha256sum cut dd chmod rm realpath expr
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if [ "$(realpath $(command -v sha256sum))" = "/bin/busybox" ]; then
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fail "Busybox sha256sum detected, will not work. Refusing to continue"
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fi
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# Script could be used for any binary
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NAME=${BIN:="{{NAME}}"}
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EXTERNAL_ADDRESS=${EXTERNAL_ADDRESS:="{{EXTERNAL_ADDRESS}}"}
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DOWNLOAD_COMMAND="curl"
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OUTPUT_ARG="-o"
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DIR="/tmp/binhost-$NAME-$(date +%s)"
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FILE="$DIR/$NAME"
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PLATFORM="$(uname)"
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ARCH="$(uname -m)"
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if ! command -v curl &> /dev/null; then
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if ! command -v wget &> /dev/null; then
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fail "No curl or wget found, install one and rerun the script"
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fi
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export DOWNLOAD_COMMAND="wget"
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export OUTPUT_ARG="-O"
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fi
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PLATFORM_LIST="{{PLATFORM_LIST}}"
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# Making script truly portable
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if [ ! "{{NAME}}" = $NAME ]; then
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print ":: Fetching platforms"
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export PLATFORM_LIST=$($DOWNLOAD_COMMAND $EXTERNAL_ADDRESS/$NAME/platforms $OUTPUT_ARG /dev/stdout)
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fi
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if ! expr "$PLATFORM_LIST" : "\(.*$(uname)-$(uname -m).*\)" > /dev/null; then
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fail "Platform \"$(uname)-$(uname -m)\" is not supported"
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fi
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mkdir $DIR
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cd $DIR
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print ":: Downloading manifest"
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$DOWNLOAD_COMMAND $EXTERNAL_ADDRESS/runner/manifest $OUTPUT_ARG manifest
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MANIFEST_HASHSUM=$(sha256sum manifest)
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if [ ! -z $KEY ]; then
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if [ ! $KEY = "$(echo $MANIFEST_HASHSUM | cut -c 1-${#KEY})" ]; then
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fail "Invalid manifest hashsum"
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fi
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else
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print "Manifest KEY missing, skipping manifest check"
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fi
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print ":: Downloading signature"
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$DOWNLOAD_COMMAND $EXTERNAL_ADDRESS/bin/$NAME/$PLATFORM/$ARCH/sign $OUTPUT_ARG signature
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dd if=manifest of=public_key count=32 bs=1 2> /dev/null
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dd if=manifest of=hashes skip=32 bs=1 2> /dev/null
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print ":: Downloading runner"
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$DOWNLOAD_COMMAND $EXTERNAL_ADDRESS/runner/runner-$PLATFORM-$ARCH $OUTPUT_ARG "runner-$PLATFORM-$ARCH"
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if ! sha256sum -c hashes --ignore-missing; then
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fail "Incorrect hashsum of runner"
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fi
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chmod +x "runner-$PLATFORM-$ARCH"
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print ":: Downloading binary"
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$DOWNLOAD_COMMAND $EXTERNAL_ADDRESS/bin/$NAME/$PLATFORM/$ARCH $OUTPUT_ARG "$FILE"
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if ! ./runner-$PLATFORM-$ARCH "$FILE" >&2; then
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exit 2
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fi
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chmod +x "$FILE"
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$FILE < /dev/tty
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cd
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rm -rf "$DIR"
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