diff options
author | HuabingZhao <zhao.huabing@zte.com.cn> | 2017-09-04 19:33:48 +0800 |
---|---|---|
committer | HuabingZhao <zhao.huabing@zte.com.cn> | 2017-09-04 19:34:03 +0800 |
commit | c4a34b2fe6f7317bf17fa478a734e5bdab30c278 (patch) | |
tree | 8b65034b069a657f2531137b389a0c1d4919b79a /src/kube2msb/vendor/k8s.io/kubernetes/pkg/util/validation/validation.go | |
parent | cc0c6e3ed8fc6c9fd96ef843b866070f52537185 (diff) |
Use maven to build kube2msb
Issue-Id: OOM-61
Change-Id: Ic7e733c95e28b75b66535b343ae22c893db24531
Signed-off-by: HuabingZhao <zhao.huabing@zte.com.cn>
Diffstat (limited to 'src/kube2msb/vendor/k8s.io/kubernetes/pkg/util/validation/validation.go')
-rw-r--r-- | src/kube2msb/vendor/k8s.io/kubernetes/pkg/util/validation/validation.go | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/src/kube2msb/vendor/k8s.io/kubernetes/pkg/util/validation/validation.go b/src/kube2msb/vendor/k8s.io/kubernetes/pkg/util/validation/validation.go new file mode 100644 index 0000000..6e6a027 --- /dev/null +++ b/src/kube2msb/vendor/k8s.io/kubernetes/pkg/util/validation/validation.go @@ -0,0 +1,306 @@ +/* +Copyright 2014 The Kubernetes Authors. + +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 validation + +import ( + "fmt" + "math" + "net" + "regexp" + "strings" +) + +const qnameCharFmt string = "[A-Za-z0-9]" +const qnameExtCharFmt string = "[-A-Za-z0-9_.]" +const qualifiedNameFmt string = "(" + qnameCharFmt + qnameExtCharFmt + "*)?" + qnameCharFmt +const qualifiedNameMaxLength int = 63 + +var qualifiedNameRegexp = regexp.MustCompile("^" + qualifiedNameFmt + "$") + +// IsQualifiedName tests whether the value passed is what Kubernetes calls a +// "qualified name". This is a format used in various places throughout the +// system. If the value is not valid, a list of error strings is returned. +// Otherwise an empty list (or nil) is returned. +func IsQualifiedName(value string) []string { + var errs []string + parts := strings.Split(value, "/") + var name string + switch len(parts) { + case 1: + name = parts[0] + case 2: + var prefix string + prefix, name = parts[0], parts[1] + if len(prefix) == 0 { + errs = append(errs, "prefix part "+EmptyError()) + } else if msgs := IsDNS1123Subdomain(prefix); len(msgs) != 0 { + errs = append(errs, prefixEach(msgs, "prefix part ")...) + } + default: + return append(errs, RegexError(qualifiedNameFmt, "MyName", "my.name", "123-abc")+ + " with an optional DNS subdomain prefix and '/' (e.g. 'example.com/MyName'") + } + + if len(name) == 0 { + errs = append(errs, "name part "+EmptyError()) + } else if len(name) > qualifiedNameMaxLength { + errs = append(errs, "name part "+MaxLenError(qualifiedNameMaxLength)) + } + if !qualifiedNameRegexp.MatchString(name) { + errs = append(errs, "name part "+RegexError(qualifiedNameFmt, "MyName", "my.name", "123-abc")) + } + return errs +} + +const labelValueFmt string = "(" + qualifiedNameFmt + ")?" +const LabelValueMaxLength int = 63 + +var labelValueRegexp = regexp.MustCompile("^" + labelValueFmt + "$") + +// IsValidLabelValue tests whether the value passed is a valid label value. If +// the value is not valid, a list of error strings is returned. Otherwise an +// empty list (or nil) is returned. +func IsValidLabelValue(value string) []string { + var errs []string + if len(value) > LabelValueMaxLength { + errs = append(errs, MaxLenError(LabelValueMaxLength)) + } + if !labelValueRegexp.MatchString(value) { + errs = append(errs, RegexError(labelValueFmt, "MyValue", "my_value", "12345")) + } + return errs +} + +const dns1123LabelFmt string = "[a-z0-9]([-a-z0-9]*[a-z0-9])?" +const DNS1123LabelMaxLength int = 63 + +var dns1123LabelRegexp = regexp.MustCompile("^" + dns1123LabelFmt + "$") + +// IsDNS1123Label tests for a string that conforms to the definition of a label in +// DNS (RFC 1123). +func IsDNS1123Label(value string) []string { + var errs []string + if len(value) > DNS1123LabelMaxLength { + errs = append(errs, MaxLenError(DNS1123LabelMaxLength)) + } + if !dns1123LabelRegexp.MatchString(value) { + errs = append(errs, RegexError(dns1123LabelFmt, "my-name", "123-abc")) + } + return errs +} + +const dns1123SubdomainFmt string = dns1123LabelFmt + "(\\." + dns1123LabelFmt + ")*" +const DNS1123SubdomainMaxLength int = 253 + +var dns1123SubdomainRegexp = regexp.MustCompile("^" + dns1123SubdomainFmt + "$") + +// IsDNS1123Subdomain tests for a string that conforms to the definition of a +// subdomain in DNS (RFC 1123). +func IsDNS1123Subdomain(value string) []string { + var errs []string + if len(value) > DNS1123SubdomainMaxLength { + errs = append(errs, MaxLenError(DNS1123SubdomainMaxLength)) + } + if !dns1123SubdomainRegexp.MatchString(value) { + errs = append(errs, RegexError(dns1123SubdomainFmt, "example.com")) + } + return errs +} + +const dns952LabelFmt string = "[a-z]([-a-z0-9]*[a-z0-9])?" +const DNS952LabelMaxLength int = 24 + +var dns952LabelRegexp = regexp.MustCompile("^" + dns952LabelFmt + "$") + +// IsDNS952Label tests for a string that conforms to the definition of a label in +// DNS (RFC 952). +func IsDNS952Label(value string) []string { + var errs []string + if len(value) > DNS952LabelMaxLength { + errs = append(errs, MaxLenError(DNS952LabelMaxLength)) + } + if !dns952LabelRegexp.MatchString(value) { + errs = append(errs, RegexError(dns952LabelFmt, "my-name", "abc-123")) + } + return errs +} + +const cIdentifierFmt string = "[A-Za-z_][A-Za-z0-9_]*" + +var cIdentifierRegexp = regexp.MustCompile("^" + cIdentifierFmt + "$") + +// IsCIdentifier tests for a string that conforms the definition of an identifier +// in C. This checks the format, but not the length. +func IsCIdentifier(value string) []string { + if !cIdentifierRegexp.MatchString(value) { + return []string{RegexError(cIdentifierFmt, "my_name", "MY_NAME", "MyName")} + } + return nil +} + +// IsValidPortNum tests that the argument is a valid, non-zero port number. +func IsValidPortNum(port int) []string { + if 1 <= port && port <= 65535 { + return nil + } + return []string{InclusiveRangeError(1, 65535)} +} + +// Now in libcontainer UID/GID limits is 0 ~ 1<<31 - 1 +// TODO: once we have a type for UID/GID we should make these that type. +const ( + minUserID = 0 + maxUserID = math.MaxInt32 + minGroupID = 0 + maxGroupID = math.MaxInt32 +) + +// IsValidGroupId tests that the argument is a valid Unix GID. +func IsValidGroupId(gid int64) []string { + if minGroupID <= gid && gid <= maxGroupID { + return nil + } + return []string{InclusiveRangeError(minGroupID, maxGroupID)} +} + +// IsValidUserId tests that the argument is a valid Unix UID. +func IsValidUserId(uid int64) []string { + if minUserID <= uid && uid <= maxUserID { + return nil + } + return []string{InclusiveRangeError(minUserID, maxUserID)} +} + +var portNameCharsetRegex = regexp.MustCompile("^[-a-z0-9]+$") +var portNameOneLetterRegexp = regexp.MustCompile("[a-z]") + +// IsValidPortName check that the argument is valid syntax. It must be +// non-empty and no more than 15 characters long. It may contain only [-a-z0-9] +// and must contain at least one letter [a-z]. It must not start or end with a +// hyphen, nor contain adjacent hyphens. +// +// Note: We only allow lower-case characters, even though RFC 6335 is case +// insensitive. +func IsValidPortName(port string) []string { + var errs []string + if len(port) > 15 { + errs = append(errs, MaxLenError(15)) + } + if !portNameCharsetRegex.MatchString(port) { + errs = append(errs, "must contain only alpha-numeric characters (a-z, 0-9), and hyphens (-)") + } + if !portNameOneLetterRegexp.MatchString(port) { + errs = append(errs, "must contain at least one letter (a-z)") + } + if strings.Contains(port, "--") { + errs = append(errs, "must not contain consecutive hyphens") + } + if len(port) > 0 && (port[0] == '-' || port[len(port)-1] == '-') { + errs = append(errs, "must not begin or end with a hyphen") + } + return errs +} + +// IsValidIP tests that the argument is a valid IP address. +func IsValidIP(value string) []string { + if net.ParseIP(value) == nil { + return []string{"must be a valid IP address, (e.g. 10.9.8.7)"} + } + return nil +} + +const percentFmt string = "[0-9]+%" + +var percentRegexp = regexp.MustCompile("^" + percentFmt + "$") + +func IsValidPercent(percent string) []string { + if !percentRegexp.MatchString(percent) { + return []string{RegexError(percentFmt, "1%", "93%")} + } + return nil +} + +const httpHeaderNameFmt string = "[-A-Za-z0-9]+" + +var httpHeaderNameRegexp = regexp.MustCompile("^" + httpHeaderNameFmt + "$") + +// IsHTTPHeaderName checks that a string conforms to the Go HTTP library's +// definition of a valid header field name (a stricter subset than RFC7230). +func IsHTTPHeaderName(value string) []string { + if !httpHeaderNameRegexp.MatchString(value) { + return []string{RegexError(httpHeaderNameFmt, "X-Header-Name")} + } + return nil +} + +const configMapKeyFmt = "\\.?" + dns1123SubdomainFmt + +var configMapKeyRegexp = regexp.MustCompile("^" + configMapKeyFmt + "$") + +// IsConfigMapKey tests for a string that conforms to the definition of a +// subdomain in DNS (RFC 1123), except that a leading dot is allowed +func IsConfigMapKey(value string) []string { + var errs []string + if len(value) > DNS1123SubdomainMaxLength { + errs = append(errs, MaxLenError(DNS1123SubdomainMaxLength)) + } + if !configMapKeyRegexp.MatchString(value) { + errs = append(errs, RegexError(configMapKeyFmt, "key.name")) + } + return errs +} + +// MaxLenError returns a string explanation of a "string too long" validation +// failure. +func MaxLenError(length int) string { + return fmt.Sprintf("must be no more than %d characters", length) +} + +// RegexError returns a string explanation of a regex validation failure. +func RegexError(fmt string, examples ...string) string { + s := "must match the regex " + fmt + if len(examples) == 0 { + return s + } + s += " (e.g. " + for i := range examples { + if i > 0 { + s += " or " + } + s += "'" + examples[i] + "'" + } + return s + ")" +} + +// EmptyError returns a string explanation of a "must not be empty" validation +// failure. +func EmptyError() string { + return "must be non-empty" +} + +func prefixEach(msgs []string, prefix string) []string { + for i := range msgs { + msgs[i] = prefix + msgs[i] + } + return msgs +} + +// InclusiveRangeError returns a string explanation of a numeric "must be +// between" validation failure. +func InclusiveRangeError(lo, hi int) string { + return fmt.Sprintf(`must be between %d and %d, inclusive`, lo, hi) +} |