/usr/share/gocode/src/github.com/ctdk/goiardi/util/validations.go is in golang-github-ctdk-goiardi-dev 0.11.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2013-2016, 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 util
import (
"fmt"
"github.com/ctdk/goiardi/config"
"github.com/ctdk/goiardi/filestore"
"github.com/tideland/golib/logger"
"net/http"
"regexp"
"strconv"
"strings"
)
/* Validations for different types and input. */
func ValidateName(name string) bool {
m, _ := regexp.MatchString("[^A-Za-z0-9_.-]", name)
return !m
}
func ValidateUserName(name string) bool {
m, _ := regexp.MatchString("[^a-z0-9_.-]", name)
return !m
}
func ValidateDBagName(name string) bool {
m, _ := regexp.MatchString("[^A-Za-z0-9_.:-]", name)
return !m
}
func ValidateEnvName(name string) bool {
m, _ := regexp.MatchString("[^A-Za-z0-9_-]", name)
return !m
}
func ValidateAsString(str interface{}) (string, Gerror) {
switch str := str.(type) {
case string:
return str, nil
case nil:
err := Errorf("Field 'name' missing")
return "", err
default:
err := Errorf("Field 'name' invalid")
return "", err
}
}
func ValidateAsBool(b interface{}) (bool, Gerror) {
switch b := b.(type) {
case bool:
return b, nil
default:
err := Errorf("Invalid bool")
return false, err
}
}
func ValidateAsFieldString(str interface{}) (string, Gerror) {
switch str := str.(type) {
case string:
return str, nil
case nil:
err := Errorf("Field 'name' nil")
return "", err
default:
err := Errorf("Field 'name' missing")
return "", err
}
}
func ValidateAsVersion(ver interface{}) (string, Gerror) {
switch ver := ver.(type) {
case string:
validVer := regexp.MustCompile(`^(\d+)\.(\d+)(\.?)(\d+)?$`)
inspectVer := validVer.FindStringSubmatch(ver)
if inspectVer != nil && ver != "0.0" {
nums := []int{1, 2, 4}
for _, n := range nums {
/* #4 might not exist, but 1 and 2 must.
* The regexp doesn't match if they
* don't. */
if n > len(inspectVer) || inspectVer[n] == "" && n == 4 {
break
}
v, err := strconv.ParseInt(inspectVer[n], 10, 64)
if err != nil {
verr := Errorf(err.Error())
return "", verr
}
if v < 0 {
verr := Errorf("Invalid version number")
return "", verr
}
}
} else {
verr := Errorf("Invalid version number")
return "", verr
}
return ver, nil
case nil:
return "0.0.0", nil
default:
err := Errorf("Invalid version number")
return "", err
}
}
func ValidateAttributes(key string, attrs interface{}) (map[string]interface{}, Gerror) {
switch attrs := attrs.(type) {
case map[string]interface{}:
return attrs, nil
case nil:
/* Separate to do more validations above */
nilAttrs := make(map[string]interface{})
return nilAttrs, nil
default:
err := Errorf("Field '%s' is not a hash", key)
return nil, err
}
}
func ValidateCookbookDivision(dname string, div interface{}) ([]map[string]interface{}, Gerror) {
switch div := div.(type) {
case []interface{}:
var d []map[string]interface{}
err := Errorf("Invalid element in array value of '%s'.", dname)
for _, v := range div {
switch v := v.(type) {
case map[string]interface{}:
if len(v) < 4 {
return nil, err
}
/* validate existence of file
* in sandbox */
chksum, cherr := ValidateAsString(v["checksum"])
if cherr == nil {
var itemURL string
var uploaded bool
var ferr error
if config.Config.UseS3Upload {
uploaded, ferr = CheckForObject("default", chksum)
if ferr != nil {
uploaded = false
logger.Errorf(ferr.Error())
} else if uploaded {
itemURL, _ = S3GetURL("default", chksum)
}
} else {
if _, ferr = filestore.Get(chksum); ferr == nil {
uploaded = true
itemURL = CustomURL(fmt.Sprintf("/file_store/%s", chksum))
}
}
var merr Gerror
if !uploaded {
/* This is nuts. */
if dname == "recipes" {
merr = Errorf("Manifest has a checksum that hasn't been uploaded.")
} else {
merr = Errorf("Manifest has checksum %s but it hasn't yet been uploaded", chksum)
}
return nil, merr
}
v["url"] = itemURL
d = append(d, v)
}
default:
return nil, err
}
}
return d, nil
case nil:
/* This the way? */
// d := make([]map[string]interface{}, 0)
return nil, nil
default:
err := Errorf("Field '%s' invalid", dname)
return nil, err
}
}
func ValidateNumVersions(nr string) Gerror {
/* Just see if it fits the bill for what we want. */
if nr != "all" && nr != "" {
validNr := regexp.MustCompile(`^\d+`)
m := validNr.MatchString(nr)
if !m {
err := Errorf("Invalid num_versions")
return err
}
n, nerr := strconv.Atoi(nr)
if nerr != nil {
err := Errorf(nerr.Error())
return err
}
if n < 0 {
err := Errorf("Invalid num_versions")
return err
}
} else if nr == "" {
err := Errorf("Invalid num_versions")
return err
}
return nil
}
func ValidateCookbookMetadata(mdata interface{}) (map[string]interface{}, Gerror) {
switch mdata := mdata.(type) {
case map[string]interface{}:
if len(mdata) == 0 {
/* This error message would make more sense as
* "Metadata empty" if the metadata is, you
* know, totally empty, but the spec wants
* "Field 'metadata.version' missing." Since
* it's easier to just check the length before
* doing a for loop, check the length first
* before inspecting each map key. We have to
* give it the error message it wants first
* however. */
err := Errorf("Field 'metadata.version' missing")
return nil, err
}
/* If metadata does have a length, loop through and
* check the various elements. Some metadata fields are
* supposed to be strings, some are supposed to be
* hashes. Versions is it's own special thing, of
* course, and needs checked seperately. Do that first.
*/
if mv, mvok := mdata["version"]; mvok {
switch mv := mv.(type) {
case string:
if _, merr := ValidateAsVersion(mv); merr != nil {
merr := Errorf("Field 'metadata.version' invalid")
return nil, merr
}
case nil:
default:
err := Errorf("Field 'metadata.version' invalid")
return nil, err
}
} else {
err := Errorf("Field 'metadata.version' missing")
return nil, err
}
/* String checks. Check equality of name and version
* elsewhere. */
strchk := []string{"maintainer", "name", "description", "maintainer_email", "long_description", "license"}
for _, v := range strchk {
err := Errorf("Field 'metadata.%s' invalid", v)
switch sv := mdata[v].(type) {
case string:
if v == "name" && !ValidateName(sv) {
return nil, err
}
_ = sv // no-op
case nil:
if v == "long_description" {
mdata[v] = ""
}
default:
return nil, err
}
}
/* hash checks */
hashchk := []string{"platforms", "dependencies", "recommendations", "suggestions", "conflicting", "replacing", "groupings"}
for _, v := range hashchk {
err := Errorf("Field 'metadata.%s' invalid", v)
switch hv := mdata[v].(type) {
case map[string]interface{}:
for _, j := range hv {
switch s := j.(type) {
case string:
if _, serr := ValidateAsConstraint(s); serr != nil {
if _, serr = ValidateAsVersion(s); serr != nil {
cerr := Errorf("Invalid value '%s' for metadata.%s", s, v)
return nil, cerr
}
}
case map[string]interface{}:
if v != "groupings" {
err := Errorf("Invalid value '{[]}' for metadata.%s", v)
return nil, err
}
default:
fakeout := fmt.Sprintf("%v", s)
if fakeout == "map[]" {
fakeout = "{[]}"
}
err := Errorf("Invalid value '%s' for metadata.%s", fakeout, v)
return nil, err
}
}
case nil:
if v == "dependencies" {
mdata[v] = make(map[string]interface{})
}
default:
return nil, err
}
}
return mdata, nil
default:
err := Errorf("bad metadata: chng msg")
return nil, err
}
}
func ValidateAsConstraint(t interface{}) (bool, Gerror) {
err := Errorf("Invalid constraint")
switch t := t.(type) {
case string:
cr := regexp.MustCompile(`^([<>=~]{1,2}) (.*)`)
cItem := cr.FindStringSubmatch(t)
if cItem != nil {
ver := cItem[2]
if _, verr := ValidateAsVersion(ver); verr != nil {
return false, verr
}
return true, nil
}
return false, err
default:
return false, err
}
}
func ValidateRunList(rl interface{}) ([]string, Gerror) {
switch rl := rl.(type) {
case []string:
for i, r := range rl {
j, err := validateRLItem(r)
if err != nil {
return nil, err
}
if j == "" {
err := Errorf("Field 'run_list' is not a valid run list")
return nil, err
}
rl[i] = j
}
/* Remove dupes */
result := []string{}
found := map[string]bool{}
for _, u := range rl {
if _, ok := found[u]; !ok {
result = append(result, u)
found[u] = true
}
}
return result, nil
case nil:
/* separate to do more validations above */
var nilRl []string
return nilRl, nil
default:
err := Errorf("Not a proper runlist []string")
return nil, err
}
}
func validateRLItem(item string) (string, Gerror) {
/* There's a few places this might be used. */
err := Errorf("Field 'run_list' is not a valid run list")
if item == "" {
return "", err
}
/* first checks */
validRl := regexp.MustCompile("[^A-Za-z0-9_\\[\\]@\\.:-]")
m := validRl.MatchString(item)
if m {
return "", err
}
inspectRegexp := regexp.MustCompile(`^(\w+)\[(.*?)\]$`)
inspectItem := inspectRegexp.FindStringSubmatch(item)
if inspectItem != nil {
rlType := inspectItem[1]
rlItem := inspectItem[2]
if rlType == "role" {
if !validateRoleName(rlItem) {
return "", err
}
} else if rlType == "recipe" {
if !validateRecipeName(rlItem) {
return "", err
}
} else {
return "", err
}
} else {
if validateRecipeName(item) {
item = fmt.Sprintf("recipe[%s]", item)
} else {
return "", err
}
}
return item, nil
}
func validateRoleName(name string) bool {
validRole := regexp.MustCompile("[^A-Za-z0-9_-]")
m := validRole.MatchString(name)
return !m
}
func validateRecipeName(name string) bool {
firstValid := regexp.MustCompile("[^A-Za-z0-9_@\\.:-]")
m := firstValid.MatchString(name)
if m {
return false
}
/* If we have a version */
if strings.Index(name, "@") != -1 {
h := strings.Split(name, "@")
name = h[0]
version := h[1]
validVer := regexp.MustCompile(`^\d+\.\d+(\.\d+)?$`)
if !validVer.MatchString(version) {
return false
}
}
return true
}
// CheckAdminPlusValidator checks that client/user json is not trying to set
// admin and validator at the same time. This has to be checked separately to
// make chef-pedent happy.
func CheckAdminPlusValidator(jsonActor map[string]interface{}) Gerror {
var ab, vb bool
if adminVal, ok := jsonActor["admin"]; ok {
ab, _ = ValidateAsBool(adminVal)
}
if validatorVal, ok := jsonActor["validator"]; ok {
vb, _ = ValidateAsBool(validatorVal)
}
if ab && vb {
err := Errorf("Client can be either an admin or a validator, but not both.")
err.SetStatus(http.StatusBadRequest)
return err
}
return nil
}
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