Bash变量被插入cURL命令时会被截断
脚本的第一部分如下所示:Bash变量被插入cURL命令时会被截断,bash,shell,curl,Bash,Shell,Curl,脚本的第一部分如下所示: curl -k -X POST -H "Content-Type: application/x-www-form-urlencoded" -H "Cache-Control: no-cache" -d 'username=username&password=password "https://get_token" >> token.txt token=$(<'token.txt'$'\r') echo "$token" eyJhbGciOiJ
curl -k -X POST -H "Content-Type: application/x-www-form-urlencoded" -H "Cache-Control: no-cache" -d 'username=username&password=password "https://get_token" >> token.txt
token=$(<'token.txt'$'\r')
echo "$token"
eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz09IiwibmJmIjoxNDgzOTg5NjgwLCJpc3MiOiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
curl -k -X POST -H Content-Type: application/json -H Authorization: AR-JWT eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz0 -H Cache-Control: no-cache -d { OiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
"values":{
"First_Name": "John",
"Last_Name": "Doe",
}
} https://randomurl.com
让我们看看当我尝试将令牌插入脚本的下一部分时会发生什么。
echo curl -k -X POST -H "Content-Type: application/json" -H "Authorization: AR-JWT "$token"" -H "Cache-Control: no-cache" -d '{
"values":{
"First_Name": "John",
"Last_Name": "Doe",
}
} ' "https://randomurl.com"
以下是输出:
curl -k -X POST -H "Content-Type: application/x-www-form-urlencoded" -H "Cache-Control: no-cache" -d 'username=username&password=password "https://get_token" >> token.txt
token=$(<'token.txt'$'\r')
echo "$token"
eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz09IiwibmJmIjoxNDgzOTg5NjgwLCJpc3MiOiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
curl -k -X POST -H Content-Type: application/json -H Authorization: AR-JWT eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz0 -H Cache-Control: no-cache -d { OiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
"values":{
"First_Name": "John",
"Last_Name": "Doe",
}
} https://randomurl.com
传入令牌时会发生两种情况
- 令牌中的“9IiwibmJmIjoxNDgzOTg5NjgwLCJpc3Mi”被删除
- 令牌的后半部分(在删除的部分之后)被插入到主体中
curl -k -X POST -H "Content-Type: application/x-www-form-urlencoded" -H "Cache-Control: no-cache" -d 'username=username&password=password "https://get_token" >> token.txt
token=$(<'token.txt'$'\r')
echo "$token"
eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz09IiwibmJmIjoxNDgzOTg5NjgwLCJpc3MiOiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
curl -k -X POST -H Content-Type: application/json -H Authorization: AR-JWT eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz0 -H Cache-Control: no-cache -d { OiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
"values":{
"First_Name": "John",
"Last_Name": "Doe",
}
} https://randomurl.com
- 使用不同的令牌
- 使用令牌而不首先将其传递到文件中
- 将授权标头移动到URL之前
$ ./variable_testing.sh
+ ./variable_testing.sh
+ token=$'eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz09IiwibmJmIjoxNDgzOTg5NjgwLCJpc3MiOiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw\r'
+ echo $'eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz09IiwibmJmIjoxNDgzOTg5NjgwLCJpc3MiOiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw\r\r'
eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz09IiwibmJmIjoxNDgzOTg5NjgwLCJpc3MiOiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
+ echo curl -k -X POST -H '"Content-Type:' 'application/json"' -H '"Authorization:' AR-JWT 'eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk"' -H '"Cache-Control:' 'no-cache"' -d '{ LCJpc3MiOiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
"values":{
"First_Name": "John",
"Last_Name": "Doe",
}
} ' $'https://randomurl.com\r'
curl -k -X POST -H "Content-Type: application/json" -H "Authorization: AR-JWT eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1" -H "Cache-Control: no-cache" -d { OiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw
"values":{
"First_Name": "John",
"Last_Name": "Doe",
}
} https://randomurl.com
上面显示输出的完整简化脚本
#!/bin/bash
set -x logs
token="eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIyTVd0bGo4Y1VPYW8xNmdZTlV4QWlFS3RLcTc1b2JsSEN0c3hKWnlxeExCTkRKb1wvKzNSK1l5XC9YUFhoWExLaytJRVdKSE5CTE9MZmxPNksxemFjYXVlM0t1NnFIQjNRXC9QeUxzUTdVSmVOYk9pS3FDeHhcLzk1dz09IiwibmJmIjoxNDgzOTg5NjgwLCJpc3MiOiJwaHgtcmVtc3QtMDAzIiwiX2NhY2hlSWQiOjE0MzA0OCwiZXhwIjoxNDgzOTkzNDAwLCJpYXQiOjE0ODM5ODk4MDAsImp0aSI6IklER0FBNVYwR1pNU0pBTzk5QlVXTzhOMDY5VlRGTiJ9.H3vD-WfZBFXOII4k-cy7Ey2QM9YXytp31m9-Huj9vKw"
echo "$token"
echo curl -k -X POST -H \"Content-Type: application/json\" -H \"Authorization: AR-JWT $token\" -H \"Cache-Control: no-cache\" -d '{
"values":{
"First_Name": "John",
"Last_Name": "Doe",
}
} ' "https://randomurl.com"
首先:您的令牌中当前有文字CRs——明显的破坏是由在
echo
输出中打印的CRs引起的,将光标移回行首,以便令牌的部分内容被稍后的内容覆盖。要消除这些错误,您可以将文件转换为UNIX文本格式(并确保生成该文件的任何命令中都没有CRs),也可以使用:
token=$(<token.txt) # read token.txt into "token" variable
token=${token//$'\r'/} # strip CRs from token variable
最后,确保脚本本身是UNIX格式的——编辑器没有使用DOS换行符保存脚本
-H“Authorization:AR-JWT“$token”
。。。我的意思是,坦率地说,你的意思是什么?您希望内部引号是文字引号还是语法引号?顺便说一句,使用printf“%q\n'$token”
,或declare-ptoken
,而不是echo“$token”
,以明确的形式显示您的值。一般来说,永远不要使用echo
来调试shell的实际操作。您无法区分echo-touch“hello-world.txt”和echo-touch hello-world.txt
之间的区别,而且这两个命令完全不同。您能否更新您的问题以显示set-x
日志,以便我们可以看到shell实际传递给curl
的是什么?还有,令牌是什么=$(我花了两个小时来找出我为什么会遇到这个问题。从令牌变量中剥离CRs就解决了。谢谢!!