Created
January 2, 2011 22:20
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Get IP of user in node.js and CloudFlare-compatible
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| function getIP(req) { | |
| var ip_address = (req.connection.remoteAddress ? req.connection.remoteAddress : req.remoteAddress); | |
| //check for cloudflare | |
| try { | |
| if (req.headers['cf-connecting-ip']) { | |
| var ipParts = ip_address.split("."); | |
| var cloudFlare = false; | |
| switch (parseInt(ipParts[0])) { | |
| case 204: | |
| //(204.93.177.0 - 204.93.177.255) | |
| //(204.93.240.0 - 204.93.240.255) | |
| if (parseInt(ipParts[1]) == 93 && (parseInt(ipParts[2]) == 240 || parseInt(ipParts[2]) == 177)) { | |
| cloudFlare = true; | |
| } | |
| break | |
| case 199: | |
| //(199.27.128.0 - 199.27.135.255) | |
| if (parseInt(ipParts[1]) == 27 && (parseInt(ipParts[2]) < 136 || parseInt(ipParts[2]) > 127)) { | |
| cloudFlare = true; | |
| } | |
| break | |
| case 173: | |
| //(173.245.48.0 - 173.245.63.255) | |
| if (parseInt(ipParts[1]) == 245 && (parseInt(ipParts[2]) < 64 || parseInt(ipParts[2]) > 47)) { | |
| cloudFlare = true; | |
| } | |
| break | |
| } | |
| if (cloudFlare) { | |
| ip_address = req.headers['cf-connecting-ip']; | |
| } | |
| } | |
| } catch (e) {} | |
| return ip_address; | |
| } |
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Nice for the time but outdated now. I wrote a newer one. https://github.com/keverw/node_CloudFlare