acme-dns/api.go
2016-11-23 22:12:42 +02:00

100 lines
2.9 KiB
Go

package main
import (
"errors"
"fmt"
"github.com/kataras/iris"
)
func GetHandlerMap() map[string]func(*iris.Context) {
return map[string]func(*iris.Context){
"/register": WebRegisterGet,
}
}
func PostHandlerMap() map[string]func(*iris.Context) {
return map[string]func(*iris.Context){
"/register": WebRegisterPost,
"/update": WebUpdatePost,
}
}
func (a AuthMiddleware) Serve(ctx *iris.Context) {
usernameStr := ctx.RequestHeader("X-Api-User")
password := ctx.RequestHeader("X-Api-Key")
username, err := GetValidUsername(usernameStr)
if err == nil && ValidKey(password) {
au, err := DB.GetByUsername(username)
if err == nil && CorrectPassword(password, au.Password) {
log.Debugf("Accepted authentication from [%s]", usernameStr)
ctx.Next()
return
}
// To protect against timed side channel (never gonna give you up)
CorrectPassword(password, "$2a$10$8JEFVNYYhLoBysjAxe2yBuXrkDojBQBkVpXEQgyQyjn43SvJ4vL36")
}
ctx.JSON(iris.StatusUnauthorized, iris.Map{"error": "unauthorized"})
}
func WebRegisterPost(ctx *iris.Context) {
// Create new user
nu, err := DB.Register()
var regJSON iris.Map
var regStatus int
if err != nil {
errstr := fmt.Sprintf("%v", err)
regJSON = iris.Map{"username": "", "password": "", "domain": "", "error": errstr}
regStatus = iris.StatusInternalServerError
} else {
regJSON = iris.Map{"username": nu.Username, "password": nu.Password, "fulldomain": nu.Subdomain + "." + DNSConf.General.Domain, "subdomain": nu.Subdomain}
regStatus = iris.StatusCreated
}
log.Debugf("Successful registration, created user [%s]", nu.Username)
ctx.JSON(regStatus, regJSON)
}
func WebRegisterGet(ctx *iris.Context) {
// This is placeholder for now
WebRegisterPost(ctx)
}
func WebUpdatePost(ctx *iris.Context) {
// User auth done in middleware
a := ACMETxt{}
userStr := ctx.RequestHeader("X-API-User")
username, err := GetValidUsername(userStr)
if err != nil {
log.Warningf("Error while getting username [%s]. This should never happen because of auth middlware.", userStr)
WebUpdatePostError(ctx, err, iris.StatusUnauthorized)
return
}
if err := ctx.ReadJSON(&a); err != nil {
// Handle bad post data
log.Warningf("Could not unmarshal: [%v]", err)
WebUpdatePostError(ctx, err, iris.StatusBadRequest)
return
}
a.Username = username
// Do update
if ValidSubdomain(a.Subdomain) && ValidTXT(a.Value) {
err := DB.Update(a)
if err != nil {
log.Warningf("Error trying to update [%v]", err)
WebUpdatePostError(ctx, errors.New("internal error"), iris.StatusInternalServerError)
return
}
ctx.JSON(iris.StatusOK, iris.Map{"txt": a.Value})
} else {
log.Warningf("Bad data, subdomain: [%s], txt: [%s]", a.Subdomain, a.Value)
WebUpdatePostError(ctx, errors.New("bad data"), iris.StatusBadRequest)
return
}
}
func WebUpdatePostError(ctx *iris.Context, err error, status int) {
errStr := fmt.Sprintf("%v", err)
updJSON := iris.Map{"error": errStr}
ctx.JSON(status, updJSON)
}