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Using IPAddress Java Library with ColdFusion to determine if a given address range contains a given IP address. Supports IPv4 & IPv6. cfml
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| <cfscript> | |
| /* isIpInCIDRRange (Determine if the given address range contains the given IP address. Supports IPv4 & IPv6.) | |
| 2024-12-05 | |
| Requires IPAddress java library from https://github.com/seancfoley/IPAddress | |
| Author: James Moberg http://sunstarmedia.com @sunstarmedia | |
| GIST: https://gist.github.com/JamoCA/6cee1fae80e25a83be13a840621d1b9d | |
| Blog: https://dev.to/gamesover/testing-if-ip-is-within-a-cidr-range-29jb | |
| X/Twitter: https://x.com/gamesover/status/1864714591646945491 | |
| LinkedIn: https://www.linkedin.com/posts/jamesmoberg_heres-how-we-are-testing-if-an-ip-address-activity-7270480668407537665-XUlP | |
| */ | |
| public boolean function isIpInCIDRRange(required string ipRange, required string ipAddress) output=false hint="I determine if the given IP address range contains the given IP address. Supports IPv4 & IPv6." { | |
| try { | |
| local.network = createobject("java", "inet.ipaddr.IPAddressString").init(arguments.ipRange).getAddress(); | |
| local.ip = createobject("java", "inet.ipaddr.IPAddressString").init(arguments.ipAddress).getAddress(); | |
| return javacast("boolean", local.network.contains(local.ip)); | |
| } catch (any error){} | |
| return javacast("boolean", false); | |
| } | |
| </cfscript> |
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