只返回部分信息

Question

嗨，我们正在尝试使用NodeJS返回IP地址WHOIS信息，然后我们将请求IP地址发送到我们的应用程序的其余部分--这部分很容易。

然而，不容易的部分是，只选择Organization部分的谁的信息。

例如，这是一个whois，它返回的是什么

whois 137.184.236.168
% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object

refer:        whois.arin.net

inetnum:      137.0.0.0 - 137.255.255.255
organisation: Administered by ARIN
status:       LEGACY

whois:        whois.arin.net

changed:      1993-05
source:       IANA

# whois.arin.net

NetRange:       137.184.0.0 - 137.184.255.255
CIDR:           137.184.0.0/16
NetName:        DIGITALOCEAN-137-184-0-0
NetHandle:      NET-137-184-0-0-1
Parent:         NET137 (NET-137-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       AS14061
Organization:   DigitalOcean, LLC (DO-13)
RegDate:        2019-11-13
Updated:        2020-04-03
Comment:        Routing and Peering Policy can be found at https://www.as14061.net
Comment:        
Comment:        Please submit abuse reports at https://www.digitalocean.com/company/contact/#abuse
Ref:            https://rdap.arin.net/registry/ip/137.184.0.0



OrgName:        DigitalOcean, LLC
OrgId:          DO-13
Address:        101 Ave of the Americas
Address:        FL2
City:           New York
StateProv:      NY
PostalCode:     10013
Country:        US
RegDate:        2012-05-14
Updated:        2022-05-19
Ref:            https://rdap.arin.net/registry/entity/DO-13


OrgAbuseHandle: ABUSE5232-ARIN
OrgAbuseName:   Abuse, DigitalOcean 
OrgAbusePhone:  +1-347-875-6044 
OrgAbuseEmail:  abuse@digitalocean.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5232-ARIN

OrgTechHandle: NOC32014-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-347-875-6044 
OrgTechEmail:  noc@digitalocean.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC32014-ARIN

OrgNOCHandle: NOC32014-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-347-875-6044 
OrgNOCEmail:  noc@digitalocean.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC32014-ARIN

我们唯一感兴趣的是Organization: DigitalOcean, LLC (DO-13)

因为我们希望从这个主机提供程序中删除所有IP地址。

我们注意到，通过使用host命令，我们已经成功地阻止了谷歌和AWS，但是数字海洋并不是这样工作的，我们需要通过无名用户来完成它。

我知道在NodeJS我会要求提供信息

 exec("whois "+ip, (error, stdout, stderr) => {
    console.log(stdout);
  }

Answer 1

可以使用正则表达式：

const organizationPattern = /^organization:\s*(.+)$/im;
const match = organizationPattern.exec(stdout);
const organization = match ? match[1] : 'unknown';

console.log(organization);