mirror of
https://github.com/ceph/ceph-csi.git
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07b05616a0
Bumps [k8s.io/kubernetes](https://github.com/kubernetes/kubernetes) from 1.26.2 to 1.27.2. - [Release notes](https://github.com/kubernetes/kubernetes/releases) - [Commits](https://github.com/kubernetes/kubernetes/compare/v1.26.2...v1.27.2) --- updated-dependencies: - dependency-name: k8s.io/kubernetes dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>
344 lines
11 KiB
Go
344 lines
11 KiB
Go
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cel
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import (
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"strconv"
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"strings"
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"time"
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"github.com/google/cel-go/checker"
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"github.com/google/cel-go/common/overloads"
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"github.com/google/cel-go/common/types"
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"github.com/google/cel-go/common/types/ref"
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"github.com/google/cel-go/interpreter/functions"
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)
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// Library provides a collection of EnvOption and ProgramOption values used to configure a CEL
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// environment for a particular use case or with a related set of functionality.
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//
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// Note, the ProgramOption values provided by a library are expected to be static and not vary
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// between calls to Env.Program(). If there is a need for such dynamic configuration, prefer to
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// configure these options outside the Library and within the Env.Program() call directly.
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type Library interface {
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// CompileOptions returns a collection of functional options for configuring the Parse / Check
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// environment.
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CompileOptions() []EnvOption
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// ProgramOptions returns a collection of functional options which should be included in every
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// Program generated from the Env.Program() call.
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ProgramOptions() []ProgramOption
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}
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// Lib creates an EnvOption out of a Library, allowing libraries to be provided as functional args,
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// and to be linked to each other.
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func Lib(l Library) EnvOption {
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return func(e *Env) (*Env, error) {
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var err error
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for _, opt := range l.CompileOptions() {
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e, err = opt(e)
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if err != nil {
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return nil, err
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}
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}
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e.progOpts = append(e.progOpts, l.ProgramOptions()...)
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return e, nil
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}
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}
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// StdLib returns an EnvOption for the standard library of CEL functions and macros.
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func StdLib() EnvOption {
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return Lib(stdLibrary{})
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}
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// stdLibrary implements the Library interface and provides functional options for the core CEL
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// features documented in the specification.
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type stdLibrary struct{}
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// EnvOptions returns options for the standard CEL function declarations and macros.
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func (stdLibrary) CompileOptions() []EnvOption {
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return []EnvOption{
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Declarations(checker.StandardDeclarations()...),
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Macros(StandardMacros...),
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}
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}
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// ProgramOptions returns function implementations for the standard CEL functions.
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func (stdLibrary) ProgramOptions() []ProgramOption {
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return []ProgramOption{
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Functions(functions.StandardOverloads()...),
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}
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}
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type timeUTCLibrary struct{}
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func (timeUTCLibrary) CompileOptions() []EnvOption {
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return timeOverloadDeclarations
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}
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func (timeUTCLibrary) ProgramOptions() []ProgramOption {
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return []ProgramOption{}
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}
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// Declarations and functions which enable using UTC on time.Time inputs when the timezone is unspecified
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// in the CEL expression.
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var (
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utcTZ = types.String("UTC")
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timeOverloadDeclarations = []EnvOption{
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Function(overloads.TimeGetHours,
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MemberOverload(overloads.DurationToHours, []*Type{DurationType}, IntType,
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UnaryBinding(func(dur ref.Val) ref.Val {
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d := dur.(types.Duration)
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return types.Int(d.Hours())
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}))),
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Function(overloads.TimeGetMinutes,
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MemberOverload(overloads.DurationToMinutes, []*Type{DurationType}, IntType,
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UnaryBinding(func(dur ref.Val) ref.Val {
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d := dur.(types.Duration)
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return types.Int(d.Minutes())
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}))),
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Function(overloads.TimeGetSeconds,
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MemberOverload(overloads.DurationToSeconds, []*Type{DurationType}, IntType,
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UnaryBinding(func(dur ref.Val) ref.Val {
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d := dur.(types.Duration)
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return types.Int(d.Seconds())
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}))),
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Function(overloads.TimeGetMilliseconds,
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MemberOverload(overloads.DurationToMilliseconds, []*Type{DurationType}, IntType,
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UnaryBinding(func(dur ref.Val) ref.Val {
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d := dur.(types.Duration)
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return types.Int(d.Milliseconds())
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}))),
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Function(overloads.TimeGetFullYear,
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MemberOverload(overloads.TimestampToYear, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetFullYear(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToYearWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetFullYear),
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),
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),
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Function(overloads.TimeGetMonth,
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MemberOverload(overloads.TimestampToMonth, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetMonth(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToMonthWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetMonth),
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),
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),
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Function(overloads.TimeGetDayOfYear,
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MemberOverload(overloads.TimestampToDayOfYear, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetDayOfYear(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToDayOfYearWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(func(ts, tz ref.Val) ref.Val {
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return timestampGetDayOfYear(ts, tz)
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}),
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),
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),
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Function(overloads.TimeGetDayOfMonth,
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MemberOverload(overloads.TimestampToDayOfMonthZeroBased, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetDayOfMonthZeroBased(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToDayOfMonthZeroBasedWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetDayOfMonthZeroBased),
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),
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),
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Function(overloads.TimeGetDate,
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MemberOverload(overloads.TimestampToDayOfMonthOneBased, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetDayOfMonthOneBased(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToDayOfMonthOneBasedWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetDayOfMonthOneBased),
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),
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),
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Function(overloads.TimeGetDayOfWeek,
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MemberOverload(overloads.TimestampToDayOfWeek, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetDayOfWeek(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToDayOfWeekWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetDayOfWeek),
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),
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),
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Function(overloads.TimeGetHours,
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MemberOverload(overloads.TimestampToHours, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetHours(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToHoursWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetHours),
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),
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),
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Function(overloads.TimeGetMinutes,
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MemberOverload(overloads.TimestampToMinutes, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetMinutes(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToMinutesWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetMinutes),
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),
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),
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Function(overloads.TimeGetSeconds,
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MemberOverload(overloads.TimestampToSeconds, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetSeconds(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToSecondsWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetSeconds),
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),
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),
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Function(overloads.TimeGetMilliseconds,
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MemberOverload(overloads.TimestampToMilliseconds, []*Type{TimestampType}, IntType,
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UnaryBinding(func(ts ref.Val) ref.Val {
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return timestampGetMilliseconds(ts, utcTZ)
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}),
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),
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MemberOverload(overloads.TimestampToMillisecondsWithTz, []*Type{TimestampType, StringType}, IntType,
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BinaryBinding(timestampGetMilliseconds),
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),
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),
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}
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)
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func timestampGetFullYear(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.Year())
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}
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func timestampGetMonth(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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// CEL spec indicates that the month should be 0-based, but the Time value
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// for Month() is 1-based.
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return types.Int(t.Month() - 1)
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}
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func timestampGetDayOfYear(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.YearDay() - 1)
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}
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func timestampGetDayOfMonthZeroBased(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.Day() - 1)
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}
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func timestampGetDayOfMonthOneBased(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.Day())
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}
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func timestampGetDayOfWeek(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.Weekday())
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}
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func timestampGetHours(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.Hour())
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}
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func timestampGetMinutes(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.Minute())
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}
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func timestampGetSeconds(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.Second())
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}
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func timestampGetMilliseconds(ts, tz ref.Val) ref.Val {
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t, err := inTimeZone(ts, tz)
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if err != nil {
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return types.NewErr(err.Error())
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}
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return types.Int(t.Nanosecond() / 1000000)
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}
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func inTimeZone(ts, tz ref.Val) (time.Time, error) {
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t := ts.(types.Timestamp)
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val := string(tz.(types.String))
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ind := strings.Index(val, ":")
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if ind == -1 {
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loc, err := time.LoadLocation(val)
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if err != nil {
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return time.Time{}, err
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}
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return t.In(loc), nil
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}
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// If the input is not the name of a timezone (for example, 'US/Central'), it should be a numerical offset from UTC
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// in the format ^(+|-)(0[0-9]|1[0-4]):[0-5][0-9]$. The numerical input is parsed in terms of hours and minutes.
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hr, err := strconv.Atoi(string(val[0:ind]))
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if err != nil {
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return time.Time{}, err
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}
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min, err := strconv.Atoi(string(val[ind+1:]))
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if err != nil {
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return time.Time{}, err
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}
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var offset int
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if string(val[0]) == "-" {
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offset = hr*60 - min
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} else {
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offset = hr*60 + min
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}
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secondsEastOfUTC := int((time.Duration(offset) * time.Minute).Seconds())
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timezone := time.FixedZone("", secondsEastOfUTC)
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return t.In(timezone), nil
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}
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