Michael Bridgen
e8e86dadc0
* In general we'll have an IP address and a subnet mask for the weave network address; account for this in the zone DB and in the HTTP server. * Use the net.IP type rather than string, which gives us a bit more generality (in theory it'll deal with Ipv6 too) and validation (we attempt to parse the input)
40 lines
966 B
Go
40 lines
966 B
Go
package weavedns
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import (
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"fmt"
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"log"
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"net"
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"net/http"
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)
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const (
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UPDATE_PORT = 6785
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)
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func ListenHttp(db Zone) {
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http.HandleFunc("/add", func(w http.ResponseWriter, r *http.Request) {
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name := r.FormValue("name")
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addr := r.FormValue("ip")
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weave_cidr := r.FormValue("weave_cidr")
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if name != "" && addr != "" && weave_cidr != "" {
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ip := net.ParseIP(addr)
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weave_ip, subnet, err := net.ParseCIDR(weave_cidr)
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if err == nil && ip != nil {
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log.Printf("Adding %s (%s) -> %s", name, addr, weave_cidr)
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db.AddRecord(name, ip, weave_ip, subnet)
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} else if err != nil {
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log.Printf("Invalid CIDR in request: %s", weave_cidr)
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} else {
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log.Printf("Invalid IP in request: %s", addr)
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}
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} else {
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log.Printf("Invalid request: %s, %s, %s", name, addr, weave_cidr)
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}
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})
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address := fmt.Sprintf(":%d", UPDATE_PORT)
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err := http.ListenAndServe(address, nil)
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if err != nil {
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log.Fatal("Unable to create http listener: ", err)
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}
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}
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