/usr/share/gocode/src/github.com/ctdk/goiardi/head.go is in golang-github-ctdk-goiardi-dev 0.11.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | /*
* Copyright (c) 2013-2017, Jeremy Bingham (<jeremy@goiardi.gl>)
*
* 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 (
"github.com/ctdk/goiardi/actor"
"github.com/ctdk/goiardi/gerror"
"github.com/ctdk/goiardi/util"
"github.com/tideland/golib/logger"
"net/http"
)
// Functions and types for HEAD responses for various endpoints
//
// Implements Chef RFC090 -
// (https://github.com/chef/chef-rfc/blob/master/rfc090-server-http-head.md)
//
// From the RFC:
//
// Code Reason
// ---- ------
// 200 object exists
// 401 request signature is invalid
// 403 requestor does not have READ on the object
// 404 object does not exist
//
// Obviously, the 403 bit will be a little bit different for goiardi 0.x.y vs.
// the 1.0.0 branch because of the different permissions scheme.
//
// HEAD should be present everywhere GET is, even if the HEAD request isn't
// particularly meaningful.
type headChecker interface {
actor.Actor
DoesExist(string) (bool, util.Gerror)
}
type exists func(resource string) (bool, util.Gerror)
type permChecker func(r *http.Request, resource string, obj actor.Actor) util.Gerror
// for when no perm check is actually necessary
func nilPermCheck(r *http.Request, resource string, obj actor.Actor) util.Gerror {
return nil
}
func headResponse(w http.ResponseWriter, r *http.Request, status int) {
logger.Debugf("HEAD response status %d for %s", status, r.URL.Path)
w.WriteHeader(status)
return
}
func headDefaultResponse(w http.ResponseWriter, r *http.Request) {
logger.Debugf("HEAD default response issued for %s", r.URL.Path)
w.WriteHeader(http.StatusOK)
}
func headChecking(w http.ResponseWriter, r *http.Request, obj actor.Actor, resource string, doesExist exists, permCheck permChecker) {
found, err := doesExist(resource)
if err != nil {
headResponse(w, r, err.Status())
}
err = permCheck(r, resource, obj)
if err != nil {
headResponse(w, r, err.Status())
}
if !found {
headResponse(w, r, http.StatusNotFound)
}
headResponse(w, r, http.StatusOK)
}
func headForbidden() util.Gerror {
err := gerror.StatusError("forbidden", http.StatusForbidden)
return err
}
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