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lists.go
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lists.go
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/* List handling stuff - a bit general, used by a few handlers */
/*
* Copyright (c) 2013-2014, Jeremy Bingham (<jbingham@gmail.com>)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"fmt"
"net/http"
"encoding/json"
"github.com/ctdk/goiardi/node"
"github.com/ctdk/goiardi/actor"
"github.com/ctdk/goiardi/role"
"github.com/ctdk/goiardi/util"
"strings"
)
func list_handler(w http.ResponseWriter, r *http.Request){
w.Header().Set("Content-Type", "application/json")
path_array := SplitPath(r.URL.Path)
op := path_array[0]
var list_data map[string]string
switch op {
case "nodes":
list_data = node_handling(w, r)
case "clients", "users":
list_data = actor_handling(w, r, op)
case "roles":
list_data = role_handling(w, r)
default:
list_data = make(map[string]string)
list_data["huh"] = "not valid"
}
if list_data != nil {
enc := json.NewEncoder(w)
if err := enc.Encode(&list_data); err != nil {
JsonErrorReport(w, r, err.Error(), http.StatusInternalServerError)
}
}
}
func node_handling(w http.ResponseWriter, r *http.Request) map[string]string {
/* We're dealing with nodes, then. */
node_response := make(map[string]string)
switch r.Method {
case "GET":
node_list := node.GetList()
for _, k := range node_list {
item_url := fmt.Sprintf("/nodes/%s", k)
node_response[k] = util.CustomURL(item_url)
}
case "POST":
node_data, jerr := ParseObjJson(r.Body)
if jerr != nil {
JsonErrorReport(w, r, jerr.Error(), http.StatusBadRequest)
return nil
}
node_name, sterr := util.ValidateAsString(node_data["name"])
if sterr != nil {
JsonErrorReport(w, r, sterr.Error(), http.StatusBadRequest)
return nil
}
chef_node, _ := node.Get(node_name)
if chef_node != nil {
httperr := fmt.Errorf("Node already exists")
JsonErrorReport(w, r, httperr.Error(), http.StatusConflict)
return nil
}
var nerr util.Gerror
chef_node, nerr = node.NewFromJson(node_data)
if nerr != nil {
JsonErrorReport(w, r, nerr.Error(), nerr.Status())
return nil
}
chef_node.Save()
node_response["uri"] = util.ObjURL(chef_node)
w.WriteHeader(http.StatusCreated)
default:
JsonErrorReport(w, r, "Method not allowed for nodes", http.StatusMethodNotAllowed)
return nil
}
return node_response
}
func actor_handling(w http.ResponseWriter, r *http.Request, op string) map[string]string {
client_response := make(map[string]string)
chef_type := strings.TrimSuffix(op, "s")
switch r.Method {
case "GET":
client_list := actor.GetList()
for _, k := range client_list {
/* Make sure it's a client and not a user. */
client_chk, _ := actor.Get(k)
if client_chk.ChefType == chef_type {
item_url := fmt.Sprintf("/%s/%s", op, k)
client_response[k] = util.CustomURL(item_url)
}
}
case "POST":
client_data, jerr := ParseObjJson(r.Body)
if jerr != nil {
JsonErrorReport(w, r, jerr.Error(), http.StatusBadRequest)
return nil
}
client_name, sterr := util.ValidateAsString(client_data["name"])
if sterr != nil || client_name == "" {
err := fmt.Errorf("Field 'name' missing")
JsonErrorReport(w, r, err.Error(), http.StatusBadRequest)
return nil
}
chef_client, err := actor.NewFromJson(client_data, chef_type)
if err != nil {
JsonErrorReport(w, r, err.Error(), err.Status())
return nil
}
if public_key, pkok := client_data["public_key"]; !pkok {
var perr error
if client_response["private_key"], perr = chef_client.GenerateKeys(); perr != nil {
JsonErrorReport(w, r, perr.Error(), http.StatusInternalServerError)
return nil
}
} else {
switch public_key := public_key.(type) {
case string:
// TODO: validate public keys
// when the time comes
chef_client.PublicKey = public_key
case nil:
var perr error
if client_response["private_key"], perr = chef_client.GenerateKeys(); perr != nil {
JsonErrorReport(w, r, perr.Error(), http.StatusInternalServerError)
return nil
}
default:
JsonErrorReport(w, r, "Bad public key", http.StatusBadRequest)
return nil
}
}
/* If we make it here, we want the public key in the
* response. I think. */
client_response["public_key"] = chef_client.PublicKey
chef_client.Save()
client_response["uri"] = util.ObjURL(chef_client)
w.WriteHeader(http.StatusCreated)
default:
JsonErrorReport(w, r, "Method not allowed for clients or users", http.StatusMethodNotAllowed)
return nil
}
return client_response
}
func role_handling(w http.ResponseWriter, r *http.Request) map[string]string {
role_response := make(map[string]string)
switch r.Method {
case "GET":
role_list := role.GetList()
for _, k := range role_list {
item_url := fmt.Sprintf("/roles/%s", k)
role_response[k] = util.CustomURL(item_url)
}
case "POST":
role_data, jerr := ParseObjJson(r.Body)
if jerr != nil {
JsonErrorReport(w, r, jerr.Error(), http.StatusBadRequest)
return nil
}
if _, ok := role_data["name"].(string); !ok {
JsonErrorReport(w, r, "Role name missing", http.StatusBadRequest)
return nil
}
chef_role, _ := role.Get(role_data["name"].(string))
if chef_role != nil {
httperr := fmt.Errorf("Role already exists")
JsonErrorReport(w, r, httperr.Error(), http.StatusConflict)
return nil
}
var nerr util.Gerror
chef_role, nerr = role.NewFromJson(role_data)
if nerr != nil {
JsonErrorReport(w, r, nerr.Error(), nerr.Status())
return nil
}
chef_role.Save()
role_response["uri"] = util.ObjURL(chef_role)
w.WriteHeader(http.StatusCreated)
default:
JsonErrorReport(w, r, "Method not allowed for roles", http.StatusMethodNotAllowed)
return nil
}
return role_response
}