1 files changed, 491 insertions, 0 deletions

diff --git a/vendor/github.com/minio/minio-go/v7/pkg/lifecycle/lifecycle.go b/vendor/github.com/minio/minio-go/v7/pkg/lifecycle/lifecycle.go
new file mode 100644
index 0000000..c52f78c
--- /dev/null
+++ b/vendor/github.com/minio/minio-go/v7/pkg/lifecycle/lifecycle.go
@@ -0,0 +1,491 @@
+/*
+ * MinIO Go Library for Amazon S3 Compatible Cloud Storage
+ * Copyright 2020 MinIO, Inc.
+ *
+ * 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 lifecycle contains all the lifecycle related data types and marshallers.
+package lifecycle
+
+import (
+        "encoding/json"
+        "encoding/xml"
+        "errors"
+        "time"
+)
+
+var errMissingStorageClass = errors.New("storage-class cannot be empty")
+
+// AbortIncompleteMultipartUpload structure, not supported yet on MinIO
+type AbortIncompleteMultipartUpload struct {
+        XMLName             xml.Name       `xml:"AbortIncompleteMultipartUpload,omitempty"  json:"-"`
+        DaysAfterInitiation ExpirationDays `xml:"DaysAfterInitiation,omitempty" json:"DaysAfterInitiation,omitempty"`
+}
+
+// IsDaysNull returns true if days field is null
+func (n AbortIncompleteMultipartUpload) IsDaysNull() bool {
+        return n.DaysAfterInitiation == ExpirationDays(0)
+}
+
+// MarshalXML if days after initiation is set to non-zero value
+func (n AbortIncompleteMultipartUpload) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+        if n.IsDaysNull() {
+                return nil
+        }
+        type abortIncompleteMultipartUploadWrapper AbortIncompleteMultipartUpload
+        return e.EncodeElement(abortIncompleteMultipartUploadWrapper(n), start)
+}
+
+// NoncurrentVersionExpiration - Specifies when noncurrent object versions expire.
+// Upon expiration, server permanently deletes the noncurrent object versions.
+// Set this lifecycle configuration action on a bucket that has versioning enabled
+// (or suspended) to request server delete noncurrent object versions at a
+// specific period in the object's lifetime.
+type NoncurrentVersionExpiration struct {
+        XMLName                 xml.Name       `xml:"NoncurrentVersionExpiration" json:"-"`
+        NoncurrentDays          ExpirationDays `xml:"NoncurrentDays,omitempty" json:"NoncurrentDays,omitempty"`
+        NewerNoncurrentVersions int            `xml:"NewerNoncurrentVersions,omitempty" json:"NewerNoncurrentVersions,omitempty"`
+}
+
+// MarshalXML if n is non-empty, i.e has a non-zero NoncurrentDays or NewerNoncurrentVersions.
+func (n NoncurrentVersionExpiration) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+        if n.isNull() {
+                return nil
+        }
+        type noncurrentVersionExpirationWrapper NoncurrentVersionExpiration
+        return e.EncodeElement(noncurrentVersionExpirationWrapper(n), start)
+}
+
+// IsDaysNull returns true if days field is null
+func (n NoncurrentVersionExpiration) IsDaysNull() bool {
+        return n.NoncurrentDays == ExpirationDays(0)
+}
+
+func (n NoncurrentVersionExpiration) isNull() bool {
+        return n.IsDaysNull() && n.NewerNoncurrentVersions == 0
+}
+
+// NoncurrentVersionTransition structure, set this action to request server to
+// transition noncurrent object versions to different set storage classes
+// at a specific period in the object's lifetime.
+type NoncurrentVersionTransition struct {
+        XMLName                 xml.Name       `xml:"NoncurrentVersionTransition,omitempty"  json:"-"`
+        StorageClass            string         `xml:"StorageClass,omitempty" json:"StorageClass,omitempty"`
+        NoncurrentDays          ExpirationDays `xml:"NoncurrentDays" json:"NoncurrentDays"`
+        NewerNoncurrentVersions int            `xml:"NewerNoncurrentVersions,omitempty" json:"NewerNoncurrentVersions,omitempty"`
+}
+
+// IsDaysNull returns true if days field is null
+func (n NoncurrentVersionTransition) IsDaysNull() bool {
+        return n.NoncurrentDays == ExpirationDays(0)
+}
+
+// IsStorageClassEmpty returns true if storage class field is empty
+func (n NoncurrentVersionTransition) IsStorageClassEmpty() bool {
+        return n.StorageClass == ""
+}
+
+func (n NoncurrentVersionTransition) isNull() bool {
+        return n.StorageClass == ""
+}
+
+// UnmarshalJSON implements NoncurrentVersionTransition JSONify
+func (n *NoncurrentVersionTransition) UnmarshalJSON(b []byte) error {
+        type noncurrentVersionTransition NoncurrentVersionTransition
+        var nt noncurrentVersionTransition
+        err := json.Unmarshal(b, &nt)
+        if err != nil {
+                return err
+        }
+
+        if nt.StorageClass == "" {
+                return errMissingStorageClass
+        }
+        *n = NoncurrentVersionTransition(nt)
+        return nil
+}
+
+// MarshalXML is extended to leave out
+// <NoncurrentVersionTransition></NoncurrentVersionTransition> tags
+func (n NoncurrentVersionTransition) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+        if n.isNull() {
+                return nil
+        }
+        type noncurrentVersionTransitionWrapper NoncurrentVersionTransition
+        return e.EncodeElement(noncurrentVersionTransitionWrapper(n), start)
+}
+
+// Tag structure key/value pair representing an object tag to apply lifecycle configuration
+type Tag struct {
+        XMLName xml.Name `xml:"Tag,omitempty" json:"-"`
+        Key     string   `xml:"Key,omitempty" json:"Key,omitempty"`
+        Value   string   `xml:"Value,omitempty" json:"Value,omitempty"`
+}
+
+// IsEmpty returns whether this tag is empty or not.
+func (tag Tag) IsEmpty() bool {
+        return tag.Key == ""
+}
+
+// Transition structure - transition details of lifecycle configuration
+type Transition struct {
+        XMLName      xml.Name       `xml:"Transition" json:"-"`
+        Date         ExpirationDate `xml:"Date,omitempty" json:"Date,omitempty"`
+        StorageClass string         `xml:"StorageClass,omitempty" json:"StorageClass,omitempty"`
+        Days         ExpirationDays `xml:"Days" json:"Days"`
+}
+
+// UnmarshalJSON returns an error if storage-class is empty.
+func (t *Transition) UnmarshalJSON(b []byte) error {
+        type transition Transition
+        var tr transition
+        err := json.Unmarshal(b, &tr)
+        if err != nil {
+                return err
+        }
+
+        if tr.StorageClass == "" {
+                return errMissingStorageClass
+        }
+        *t = Transition(tr)
+        return nil
+}
+
+// MarshalJSON customizes json encoding by omitting empty values
+func (t Transition) MarshalJSON() ([]byte, error) {
+        if t.IsNull() {
+                return nil, nil
+        }
+        type transition struct {
+                Date         *ExpirationDate `json:"Date,omitempty"`
+                StorageClass string          `json:"StorageClass,omitempty"`
+                Days         *ExpirationDays `json:"Days"`
+        }
+
+        newt := transition{
+                StorageClass: t.StorageClass,
+        }
+
+        if !t.IsDateNull() {
+                newt.Date = &t.Date
+        } else {
+                newt.Days = &t.Days
+        }
+        return json.Marshal(newt)
+}
+
+// IsDaysNull returns true if days field is null
+func (t Transition) IsDaysNull() bool {
+        return t.Days == ExpirationDays(0)
+}
+
+// IsDateNull returns true if date field is null
+func (t Transition) IsDateNull() bool {
+        return t.Date.Time.IsZero()
+}
+
+// IsNull returns true if no storage-class is set.
+func (t Transition) IsNull() bool {
+        return t.StorageClass == ""
+}
+
+// MarshalXML is transition is non null
+func (t Transition) MarshalXML(en *xml.Encoder, startElement xml.StartElement) error {
+        if t.IsNull() {
+                return nil
+        }
+        type transitionWrapper Transition
+        return en.EncodeElement(transitionWrapper(t), startElement)
+}
+
+// And And Rule for LifecycleTag, to be used in LifecycleRuleFilter
+type And struct {
+        XMLName               xml.Name `xml:"And" json:"-"`
+        Prefix                string   `xml:"Prefix" json:"Prefix,omitempty"`
+        Tags                  []Tag    `xml:"Tag" json:"Tags,omitempty"`
+        ObjectSizeLessThan    int64    `xml:"ObjectSizeLessThan,omitempty" json:"ObjectSizeLessThan,omitempty"`
+        ObjectSizeGreaterThan int64    `xml:"ObjectSizeGreaterThan,omitempty" json:"ObjectSizeGreaterThan,omitempty"`
+}
+
+// IsEmpty returns true if Tags field is null
+func (a And) IsEmpty() bool {
+        return len(a.Tags) == 0 && a.Prefix == "" &&
+                a.ObjectSizeLessThan == 0 && a.ObjectSizeGreaterThan == 0
+}
+
+// Filter will be used in selecting rule(s) for lifecycle configuration
+type Filter struct {
+        XMLName               xml.Name `xml:"Filter" json:"-"`
+        And                   And      `xml:"And,omitempty" json:"And,omitempty"`
+        Prefix                string   `xml:"Prefix,omitempty" json:"Prefix,omitempty"`
+        Tag                   Tag      `xml:"Tag,omitempty" json:"Tag,omitempty"`
+        ObjectSizeLessThan    int64    `xml:"ObjectSizeLessThan,omitempty" json:"ObjectSizeLessThan,omitempty"`
+        ObjectSizeGreaterThan int64    `xml:"ObjectSizeGreaterThan,omitempty" json:"ObjectSizeGreaterThan,omitempty"`
+}
+
+// IsNull returns true if all Filter fields are empty.
+func (f Filter) IsNull() bool {
+        return f.Tag.IsEmpty() && f.And.IsEmpty() && f.Prefix == "" &&
+                f.ObjectSizeLessThan == 0 && f.ObjectSizeGreaterThan == 0
+}
+
+// MarshalJSON customizes json encoding by removing empty values.
+func (f Filter) MarshalJSON() ([]byte, error) {
+        type filter struct {
+                And                   *And   `json:"And,omitempty"`
+                Prefix                string `json:"Prefix,omitempty"`
+                Tag                   *Tag   `json:"Tag,omitempty"`
+                ObjectSizeLessThan    int64  `json:"ObjectSizeLessThan,omitempty"`
+                ObjectSizeGreaterThan int64  `json:"ObjectSizeGreaterThan,omitempty"`
+        }
+
+        newf := filter{
+                Prefix: f.Prefix,
+        }
+        if !f.Tag.IsEmpty() {
+                newf.Tag = &f.Tag
+        }
+        if !f.And.IsEmpty() {
+                newf.And = &f.And
+        }
+        newf.ObjectSizeLessThan = f.ObjectSizeLessThan
+        newf.ObjectSizeGreaterThan = f.ObjectSizeGreaterThan
+        return json.Marshal(newf)
+}
+
+// MarshalXML - produces the xml representation of the Filter struct
+// only one of Prefix, And and Tag should be present in the output.
+func (f Filter) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+        if err := e.EncodeToken(start); err != nil {
+                return err
+        }
+
+        switch {
+        case !f.And.IsEmpty():
+                if err := e.EncodeElement(f.And, xml.StartElement{Name: xml.Name{Local: "And"}}); err != nil {
+                        return err
+                }
+        case !f.Tag.IsEmpty():
+                if err := e.EncodeElement(f.Tag, xml.StartElement{Name: xml.Name{Local: "Tag"}}); err != nil {
+                        return err
+                }
+        default:
+                if f.ObjectSizeLessThan > 0 {
+                        if err := e.EncodeElement(f.ObjectSizeLessThan, xml.StartElement{Name: xml.Name{Local: "ObjectSizeLessThan"}}); err != nil {
+                                return err
+                        }
+                        break
+                }
+                if f.ObjectSizeGreaterThan > 0 {
+                        if err := e.EncodeElement(f.ObjectSizeGreaterThan, xml.StartElement{Name: xml.Name{Local: "ObjectSizeGreaterThan"}}); err != nil {
+                                return err
+                        }
+                        break
+                }
+                // Print empty Prefix field only when everything else is empty
+                if err := e.EncodeElement(f.Prefix, xml.StartElement{Name: xml.Name{Local: "Prefix"}}); err != nil {
+                        return err
+                }
+        }
+
+        return e.EncodeToken(xml.EndElement{Name: start.Name})
+}
+
+// ExpirationDays is a type alias to unmarshal Days in Expiration
+type ExpirationDays int
+
+// MarshalXML encodes number of days to expire if it is non-zero and
+// encodes empty string otherwise
+func (eDays ExpirationDays) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
+        if eDays == 0 {
+                return nil
+        }
+        return e.EncodeElement(int(eDays), startElement)
+}
+
+// ExpirationDate is a embedded type containing time.Time to unmarshal
+// Date in Expiration
+type ExpirationDate struct {
+        time.Time
+}
+
+// MarshalXML encodes expiration date if it is non-zero and encodes
+// empty string otherwise
+func (eDate ExpirationDate) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
+        if eDate.Time.IsZero() {
+                return nil
+        }
+        return e.EncodeElement(eDate.Format(time.RFC3339), startElement)
+}
+
+// ExpireDeleteMarker represents value of ExpiredObjectDeleteMarker field in Expiration XML element.
+type ExpireDeleteMarker ExpirationBoolean
+
+// IsEnabled returns true if the auto delete-marker expiration is enabled
+func (e ExpireDeleteMarker) IsEnabled() bool {
+        return bool(e)
+}
+
+// ExpirationBoolean represents an XML version of 'bool' type
+type ExpirationBoolean bool
+
+// MarshalXML encodes delete marker boolean into an XML form.
+func (b ExpirationBoolean) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {
+        if !b {
+                return nil
+        }
+        type booleanWrapper ExpirationBoolean
+        return e.EncodeElement(booleanWrapper(b), startElement)
+}
+
+// IsEnabled returns true if the expiration boolean is enabled
+func (b ExpirationBoolean) IsEnabled() bool {
+        return bool(b)
+}
+
+// Expiration structure - expiration details of lifecycle configuration
+type Expiration struct {
+        XMLName      xml.Name           `xml:"Expiration,omitempty" json:"-"`
+        Date         ExpirationDate     `xml:"Date,omitempty" json:"Date,omitempty"`
+        Days         ExpirationDays     `xml:"Days,omitempty" json:"Days,omitempty"`
+        DeleteMarker ExpireDeleteMarker `xml:"ExpiredObjectDeleteMarker,omitempty" json:"ExpiredObjectDeleteMarker,omitempty"`
+        DeleteAll    ExpirationBoolean  `xml:"ExpiredObjectAllVersions,omitempty" json:"ExpiredObjectAllVersions,omitempty"`
+}
+
+// MarshalJSON customizes json encoding by removing empty day/date specification.
+func (e Expiration) MarshalJSON() ([]byte, error) {
+        type expiration struct {
+                Date         *ExpirationDate    `json:"Date,omitempty"`
+                Days         *ExpirationDays    `json:"Days,omitempty"`
+                DeleteMarker ExpireDeleteMarker `json:"ExpiredObjectDeleteMarker,omitempty"`
+                DeleteAll    ExpirationBoolean  `json:"ExpiredObjectAllVersions,omitempty"`
+        }
+
+        newexp := expiration{
+                DeleteMarker: e.DeleteMarker,
+                DeleteAll:    e.DeleteAll,
+        }
+        if !e.IsDaysNull() {
+                newexp.Days = &e.Days
+        }
+        if !e.IsDateNull() {
+                newexp.Date = &e.Date
+        }
+        return json.Marshal(newexp)
+}
+
+// IsDaysNull returns true if days field is null
+func (e Expiration) IsDaysNull() bool {
+        return e.Days == ExpirationDays(0)
+}
+
+// IsDateNull returns true if date field is null
+func (e Expiration) IsDateNull() bool {
+        return e.Date.Time.IsZero()
+}
+
+// IsDeleteMarkerExpirationEnabled returns true if the auto-expiration of delete marker is enabled
+func (e Expiration) IsDeleteMarkerExpirationEnabled() bool {
+        return e.DeleteMarker.IsEnabled()
+}
+
+// IsNull returns true if both date and days fields are null
+func (e Expiration) IsNull() bool {
+        return e.IsDaysNull() && e.IsDateNull() && !e.IsDeleteMarkerExpirationEnabled()
+}
+
+// MarshalXML is expiration is non null
+func (e Expiration) MarshalXML(en *xml.Encoder, startElement xml.StartElement) error {
+        if e.IsNull() {
+                return nil
+        }
+        type expirationWrapper Expiration
+        return en.EncodeElement(expirationWrapper(e), startElement)
+}
+
+// MarshalJSON customizes json encoding by omitting empty values
+func (r Rule) MarshalJSON() ([]byte, error) {
+        type rule struct {
+                AbortIncompleteMultipartUpload *AbortIncompleteMultipartUpload `json:"AbortIncompleteMultipartUpload,omitempty"`
+                Expiration                     *Expiration                     `json:"Expiration,omitempty"`
+                ID                             string                          `json:"ID"`
+                RuleFilter                     *Filter                         `json:"Filter,omitempty"`
+                NoncurrentVersionExpiration    *NoncurrentVersionExpiration    `json:"NoncurrentVersionExpiration,omitempty"`
+                NoncurrentVersionTransition    *NoncurrentVersionTransition    `json:"NoncurrentVersionTransition,omitempty"`
+                Prefix                         string                          `json:"Prefix,omitempty"`
+                Status                         string                          `json:"Status"`
+                Transition                     *Transition                     `json:"Transition,omitempty"`
+        }
+        newr := rule{
+                Prefix: r.Prefix,
+                Status: r.Status,
+                ID:     r.ID,
+        }
+
+        if !r.RuleFilter.IsNull() {
+                newr.RuleFilter = &r.RuleFilter
+        }
+        if !r.AbortIncompleteMultipartUpload.IsDaysNull() {
+                newr.AbortIncompleteMultipartUpload = &r.AbortIncompleteMultipartUpload
+        }
+        if !r.Expiration.IsNull() {
+                newr.Expiration = &r.Expiration
+        }
+        if !r.Transition.IsNull() {
+                newr.Transition = &r.Transition
+        }
+        if !r.NoncurrentVersionExpiration.isNull() {
+                newr.NoncurrentVersionExpiration = &r.NoncurrentVersionExpiration
+        }
+        if !r.NoncurrentVersionTransition.isNull() {
+                newr.NoncurrentVersionTransition = &r.NoncurrentVersionTransition
+        }
+
+        return json.Marshal(newr)
+}
+
+// Rule represents a single rule in lifecycle configuration
+type Rule struct {
+        XMLName                        xml.Name                       `xml:"Rule,omitempty" json:"-"`
+        AbortIncompleteMultipartUpload AbortIncompleteMultipartUpload `xml:"AbortIncompleteMultipartUpload,omitempty" json:"AbortIncompleteMultipartUpload,omitempty"`
+        Expiration                     Expiration                     `xml:"Expiration,omitempty" json:"Expiration,omitempty"`
+        ID                             string                         `xml:"ID" json:"ID"`
+        RuleFilter                     Filter                         `xml:"Filter,omitempty" json:"Filter,omitempty"`
+        NoncurrentVersionExpiration    NoncurrentVersionExpiration    `xml:"NoncurrentVersionExpiration,omitempty"  json:"NoncurrentVersionExpiration,omitempty"`
+        NoncurrentVersionTransition    NoncurrentVersionTransition    `xml:"NoncurrentVersionTransition,omitempty" json:"NoncurrentVersionTransition,omitempty"`
+        Prefix                         string                         `xml:"Prefix,omitempty" json:"Prefix,omitempty"`
+        Status                         string                         `xml:"Status" json:"Status"`
+        Transition                     Transition                     `xml:"Transition,omitempty" json:"Transition,omitempty"`
+}
+
+// Configuration is a collection of Rule objects.
+type Configuration struct {
+        XMLName xml.Name `xml:"LifecycleConfiguration,omitempty" json:"-"`
+        Rules   []Rule   `xml:"Rule"`
+}
+
+// Empty check if lifecycle configuration is empty
+func (c *Configuration) Empty() bool {
+        if c == nil {
+                return true
+        }
+        return len(c.Rules) == 0
+}
+
+// NewConfiguration initializes a fresh lifecycle configuration
+// for manipulation, such as setting and removing lifecycle rules
+// and filters.
+func NewConfiguration() *Configuration {
+        return &Configuration{}
+}