3 files changed, 70 insertions, 0 deletions
diff --git a/util/lib/geo/Makefile b/util/lib/geo/Makefile
new file mode 100644
index 00000000..d13cd471
--- /dev/null
+++ b/util/lib/geo/Makefile
@@ -0,0 +1,15 @@
+all: node_modules GeoLiteCity.dat
+
+node_modules: package.json
+	npm install
+	@touch -r $< $@
+
+GeoLiteCity.dat:
+	@test -e GeoLiteCity.dat && ln -s GeoLiteCity.dat $@ || { \
+		echo 'No GeoIP City database found.'; \
+		echo 'You can get one from http://dev.maxmind.com/geoip/geolite:'; \
+		echo '  wget -N http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz'; \
+		echo '  gunzip GeoLiteCity.dat.gz'; \
+		exit 23; \
+	}
+
diff --git a/util/lib/geo/index.js b/util/lib/geo/index.js
new file mode 100644
index 00000000..0763b1a4
--- /dev/null
+++ b/util/lib/geo/index.js
@@ -0,0 +1,48 @@
+function slurp (stream, callback) {
+  var data = []
+  stream.on('data', function (chunk) {
+    data.push(chunk)
+  })
+  stream.on('end', function () {
+    callback(null, Buffer.concat(data))
+  })
+  stream.resume()
+}
+
+
+var path = require('path')
+var city_dat = path.join(__dirname, 'GeoLiteCity.dat')
+
+var geoip = require('geoip')
+var city = new geoip.City(city_dat)
+
+slurp(process.stdin, function (err, data) {
+  var lines = data.toString().split('\n')
+  // remove last, empty element (caused by the [mandatory] final \n)
+  if (lines.length > 1 && lines[lines.length - 1] === '') {
+    lines.pop()
+  }
+  var name = 0, addr = 1
+  lines
+    .map(function (line) { return line.split(' ') })
+    .forEach(function (host) {
+      //city.lookup(host[addr], function (err, loc) {
+      //  if (err) {
+      //    console.error('#', host[name], err.message)
+      //  } else {
+      //    console.log(host[name] + ': ' + loc.longitude + ',' + loc.latitude)
+      //  }
+      //})
+      var loc = city.lookupSync(host[addr])
+      //if (!loc) { console.error('#', host[name]) }
+      if (loc) {
+        var a = loc.latitude
+        var b = loc.longitude
+        //var c = loc.altitude
+        //var geo = 'geo:' + [a,b,c].join(',')
+        var geo = 'geo:' + [a,b].join(',')
+
+        console.log(host[name], geo)
+      }
+    })
+})
diff --git a/util/lib/geo/package.json b/util/lib/geo/package.json
new file mode 100644
index 00000000..ad449a62
--- /dev/null
+++ b/util/lib/geo/package.json
@@ -0,0 +1,7 @@
+{
+  "name": "geo",
+  "version": "0.0.0",
+  "dependencies": {
+    "geoip": "*"
+  }
+}