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FAB-17744 Signed-off-by: Will Lahti <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,182 @@ | ||
| /* | ||
| Copyright IBM Corp. All Rights Reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package configtx | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| cb "github.com/hyperledger/fabric-protos-go/common" | ||
| ) | ||
|
|
||
| // ChannelGroup encapsulates the parts of the config that control channels. | ||
| // This type implements retrieval of the various channel config values. | ||
| type ChannelGroup struct { | ||
| channelGroup *cb.ConfigGroup | ||
| } | ||
|
|
||
| // UpdatedChannelGroup is a ChannelGroup that can be modified in order to | ||
| // generate a config update. | ||
| type UpdatedChannelGroup struct { | ||
| *ChannelGroup | ||
| } | ||
|
|
||
| // Channel returns the channel group from the original config. | ||
| func (o *OriginalConfig) Channel() *ChannelGroup { | ||
| return &ChannelGroup{channelGroup: o.ChannelGroup} | ||
| } | ||
|
|
||
| // Channel returns the channel group from the updated config. | ||
| func (u *UpdatedConfig) Channel() *UpdatedChannelGroup { | ||
| return &UpdatedChannelGroup{ChannelGroup: &ChannelGroup{channelGroup: u.ChannelGroup}} | ||
| } | ||
|
|
||
| // Configuration returns a channel configuration value from a config transaction. | ||
| func (c *ChannelGroup) Configuration() (Channel, error) { | ||
| var ( | ||
| err error | ||
| consortium string | ||
| application Application | ||
| orderer Orderer | ||
| consortiums []Consortium | ||
| capabilities []string | ||
| ) | ||
|
|
||
| if _, ok := c.channelGroup.Values[ConsortiumKey]; ok { | ||
| consortiumProto := &cb.Consortium{} | ||
| err := unmarshalConfigValueAtKey(c.channelGroup, ConsortiumKey, consortiumProto) | ||
| if err != nil { | ||
| return Channel{}, err | ||
| } | ||
| consortium = consortiumProto.Name | ||
| } | ||
|
|
||
| if applicationGroup, ok := c.channelGroup.Groups[ApplicationGroupKey]; ok { | ||
| a := &ApplicationGroup{applicationGroup: applicationGroup} | ||
| application, err = a.Configuration() | ||
| if err != nil { | ||
| return Channel{}, err | ||
| } | ||
| } | ||
|
|
||
| if ordererGroup, ok := c.channelGroup.Groups[OrdererGroupKey]; ok { | ||
| o := &OrdererGroup{ordererGroup: ordererGroup, channelGroup: c.channelGroup} | ||
| orderer, err = o.Configuration() | ||
| if err != nil { | ||
| return Channel{}, err | ||
| } | ||
| } | ||
|
|
||
| if consortiumsGroup, ok := c.channelGroup.Groups[ConsortiumsGroupKey]; ok { | ||
| c := &ConsortiumsGroup{consortiumsGroup: consortiumsGroup} | ||
| consortiums, err = c.Configuration() | ||
| if err != nil { | ||
| return Channel{}, err | ||
| } | ||
| } | ||
|
|
||
| if _, ok := c.channelGroup.Values[CapabilitiesKey]; ok { | ||
| capabilities, err = c.Capabilities() | ||
| if err != nil { | ||
| return Channel{}, err | ||
| } | ||
| } | ||
|
|
||
| policies, err := c.Policies() | ||
| if err != nil { | ||
| return Channel{}, err | ||
| } | ||
|
|
||
| return Channel{ | ||
| Consortium: consortium, | ||
| Application: application, | ||
| Orderer: orderer, | ||
| Consortiums: consortiums, | ||
| Capabilities: capabilities, | ||
| Policies: policies, | ||
| }, nil | ||
| } | ||
|
|
||
| // Configuration returns a channel configuration value from a config transaction. | ||
| func (u *UpdatedChannelGroup) Configuration() (Channel, error) { | ||
| return u.ChannelGroup.Configuration() | ||
| } | ||
|
|
||
| // Policies returns a map of policies for channel configuration. | ||
| func (c *ChannelGroup) Policies() (map[string]Policy, error) { | ||
| return getPolicies(c.channelGroup.Policies) | ||
| } | ||
|
|
||
| // Policies returns a map of policies for channel configuration. | ||
| func (u *UpdatedChannelGroup) Policies() (map[string]Policy, error) { | ||
| return u.ChannelGroup.Policies() | ||
| } | ||
|
|
||
| // SetPolicy sets the specified policy in the channel group's config policy map. | ||
| // If the policy already exist in current configuration, its value will be overwritten. | ||
| func (u *UpdatedChannelGroup) SetPolicy(modPolicy, policyName string, policy Policy) error { | ||
| return setPolicy(u.channelGroup, modPolicy, policyName, policy) | ||
| } | ||
|
|
||
| // RemovePolicy removes an existing channel level policy. | ||
| func (u *UpdatedChannelGroup) RemovePolicy(policyName string) error { | ||
| policies, err := u.Policies() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| removePolicy(u.channelGroup, policyName, policies) | ||
| return nil | ||
| } | ||
|
|
||
| // Capabilities returns a map of enabled channel capabilities | ||
| // from a config transaction's original config. | ||
| func (c *ChannelGroup) Capabilities() ([]string, error) { | ||
| capabilities, err := getCapabilities(c.channelGroup) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("retrieving channel capabilities: %v", err) | ||
| } | ||
|
|
||
| return capabilities, nil | ||
| } | ||
|
|
||
| // Capabilities returns a map of enabled channel capabilities | ||
| // from a config transaction's updated config.. | ||
| func (u *UpdatedChannelGroup) Capabilities() ([]string, error) { | ||
| return u.ChannelGroup.Capabilities() | ||
| } | ||
|
|
||
| // AddCapability adds capability to the provided channel config. | ||
| // If the provided capability already exist in current configuration, this action | ||
| // will be a no-op. | ||
| func (u *UpdatedChannelGroup) AddCapability(capability string) error { | ||
| capabilities, err := u.Capabilities() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| err = addCapability(u.channelGroup, capabilities, AdminsPolicyKey, capability) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // RemoveCapability removes capability to the provided channel config. | ||
| func (u *UpdatedChannelGroup) RemoveCapability(capability string) error { | ||
| capabilities, err := u.Capabilities() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| err = removeCapability(u.channelGroup, capabilities, AdminsPolicyKey, capability) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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