aliyun-openapi-bash-sdk/AliyunOpenApiSDK.sh

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#!/bin/bash
for _aliapi_command in openssl curl; do
if ! command -v $_aliapi_command &> /dev/null; then
echo "Aliyun OpenAPI SDK: $_aliapi_command command not found" >&2
exit 127
fi
done
unset _aliapi_command
[[ -v ALIYUN_SDK_RUN_ON_MUSL_LIBC ]] || ALIYUN_SDK_RUN_ON_MUSL_LIBC=$(ldd "$SHELL" | grep -q /lib/ld-musl && echo 1 || echo 0)
ALIYUN_SDK_LAST_HTTP_CODE=0
# aliapi_rpc <http_method> <host> <api_version> <api_action> [<--key> <value>...]
aliapi_rpc() {
_aliapi_check_vars || return $?
if [[ $# -lt 4 ]];then
echo "aliapi_rpc: not enough parameters" >&2
return 2
fi
local -r _AliAccessKeyId=$AliAccessKeyId _AliAccessKeySecret=$AliAccessKeySecret
local -u _http_method=$1
local _http_host=$2
local _api_version=$3
local _api_action=$4
shift 4
local _query_str _signature_nonce _timestamp
_signature_nonce=$(_aliapi_urlencode "$(_aliapi_signature_nonce)")
_timestamp=$(_aliapi_urlencode "$(_aliapi_timestamp_rpc)")
_query_str="AccessKeyId=$_AliAccessKeyId&Action=$_api_action&Format=JSON&SignatureMethod=HMAC-SHA1&SignatureVersion=1.0&SignatureNonce=$_signature_nonce&Timestamp=$_timestamp&Version=$_api_version&"
# 解析其余参数
local _key _value
while [[ $# -ne 0 ]]
do
case $1 in
--*)
if [[ $# -le 1 ]]; then
echo "aliapi_rpc: '$1' has no value" >&2
return 2
fi
_key=${1:2}
_value=$2
[[ $_value =~ .+\(\)$ && $(type -t "${_value:0:-2}") == "function" ]] && _value=$(${_value:0:-2})
_value=$(_aliapi_urlencode "$_value")
_query_str+="$_key=$_value&"
shift 2
;;
*)
echo "aliapi_rpc: '$1' is unknown parameter" >&2
return 2
;;
esac
done
local _signature
_signature=$(_aliapi_signature_rpc "$_http_method" "${_query_str:0:-1}")
_query_str+="Signature=$(_aliapi_urlencode "$_signature")"
local _curl_out _http_url="https://$_http_host/?$_query_str"
_curl_out=$(curl --location --silent --show-error --request "$_http_method" --write-out "%{http_code}" --connect-timeout 3 "$_http_url")
printf %s "${_curl_out:0:-3}"
ALIYUN_SDK_LAST_HTTP_CODE=${_curl_out:${#_curl_out}-3}
[[ $ALIYUN_SDK_LAST_HTTP_CODE -eq 200 ]] && return 0 || return 1
}
_aliapi_check_vars() {
if [[ ! -v AliAccessKeyId || ! -v AliAccessKeySecret ]]; then
echo "Aliyun OpenAPI SDK: 'AliAccessKeyId' or 'AliAccessKeySecret' environment variable not found" >&2
return 3
fi
}
_aliapi_signature_rpc() {
if [[ ${LC_ALL:-X} != C ]]; then
LC_ALL=C _aliapi_signature_rpc "$@"
return $?
fi
local -u _http_method=$1
local _str=$2 _query_str _sign_str
local _newline="
"
_str=$(sort <<< "${_str//"&"/"$_newline"}")
_query_str=${_str//"$_newline"/"&"}
_sign_str="$_http_method&$(_aliapi_urlencode "/")&$(_aliapi_urlencode "$_query_str")"
printf "%s" "$_sign_str" | openssl dgst -sha1 -hmac "$_AliAccessKeySecret&" -binary | openssl base64 -e
}
_aliapi_timestamp_rpc() {
# ISO8601 UTC
date -u -Iseconds
}
_aliapi_signature_nonce() {
local nonce=""
if [[ -f /proc/sys/kernel/random/uuid ]]; then
nonce=$(</proc/sys/kernel/random/uuid)
else
nonce=$(date +%s%N)
fi
echo "$RANDOM${nonce//-/}$RANDOM"
}
_aliapi_urlencode() {
if [[ ${LC_ALL:-X} != C ]]; then
LC_ALL=C _aliapi_urlencode "$@"
return $?
fi
local char hex string=$1
while [[ -n $string ]]; do
char=${string:0:1}
string=${string:1}
case $char in
[-._~0-9A-Za-z]) printf %c "$char";;
*)
if [[ ALIYUN_SDK_RUN_ON_MUSL_LIBC -eq 0 ]]; then
printf %%%02X "'$char"
else
# Hack musl libc for not ASCII chars (incomplete test)
hex=$(printf %02X "'$char")
printf %%%s "${hex:${#hex}-2}"
fi
;;
esac
done
echo
}
if [[ ${#BASH_SOURCE[@]} -eq 1 ]]; then
set -euf -o pipefail
if [[ $# -eq 0 ]]; then
echo "$(basename "$0") <--rpc> <http_method> <host> <api_version> <api_action> [<--key> <value>...]" >&2
exit 2
fi
case $1 in
--rpc)
shift
aliapi_rpc "$@"
;;
*)
echo "Aliyun OpenAPI SDK: '$1' is unknown parameter" >&2
exit 2
;;
esac
fi