bash实现S3文件上传

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使用bash 实现对S3文件上传，包含metadata，acl、content-type设置，以及文件md5校验。

1. #!/bin/bash
2. ACCESS_KEY=""
3. SECRET_KEY=""
4. HOST="s3.demo.com"
5. BUCKET="demo"
6. CONTENT_TYPE="application/octet-stream"
7. FILENAME=/tmp/demo
8. ACL="x-amz-acl:public-read"
9. META_DATA="x-amz-meta-ukey:value"
10. FILESIZE=$(stat -c%s "$FILENAME")
11. FILEMD5=`cat ${FILENAME}| openssl dgst -md5 -binary | openssl enc -base64`
12. AUTH_PATH="/${BUCKET}${FILENAME}"
13. CURRENT_TIME=`TZ=GMT LANG=en_US date "+%a, %d %b %Y %H:%M:%S GMT"`
14. stringToSign="PUT\n${FILEMD5}\n${CONTENT_TYPE}\n${CURRENT_TIME}\n${ACL}\n${META_DATA}\n${AUTH_PATH}"
15. signature=`echo -en ${stringToSign} | openssl sha1 -hmac ${SECRET_KEY} -binary | base64`
17. curl -s -v -X PUT "http://${HOST}${AUTH_PATH}" \
18. -H "Authorization: AWS ${ACCESS_KEY}:${signature}" \
19. -H "Date: ${CURRENT_TIME}" \
20. -H "Host: ${HOST}" \
21. -H "Content-Length: ${FILESIZE}" \
22. -H "Content-MD5: ${FILEMD5} " \
23. -H "Content-Type: ${CONTENT_TYPE} " \
24. -H "${ACL} " \
25. -H "${META_DATA} " \
26. -T "${FILENAME}"