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Merge pull request #592 from fairDataSociety/groups
create and open group
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| package acl | ||
|
|
||
| type ACL interface { | ||
| CreateGroup(groupName, ownerAddress string) error | ||
| AddMember(groupName, ownerAddress, memberAddress string, permission uint8) error | ||
| RemoveMember(groupName, ownerAddress, memberAddress string) error | ||
| RemoveGroup(groupName, ownerAddress string) error | ||
| GetGroupMembers(groupName, ownerAddress string) (map[string]uint8, error) | ||
| UpdatePermission(groupName, ownerAddress, memberAddress string, permission uint8) error | ||
| GetPermission(groupName, ownerAddress, memberAddress string) (uint8, error) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| package acl | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "io" | ||
| "sync" | ||
|
|
||
| "github.com/fairdatasociety/fairOS-dfs/pkg/blockstore" | ||
| "github.com/fairdatasociety/fairOS-dfs/pkg/feed" | ||
| f "github.com/fairdatasociety/fairOS-dfs/pkg/file" | ||
| "github.com/fairdatasociety/fairOS-dfs/pkg/logging" | ||
| "github.com/fairdatasociety/fairOS-dfs/pkg/utils" | ||
| ) | ||
|
|
||
| const ( | ||
| NoPermission uint8 = 0 | ||
| PermissionRead uint8 = 1 | ||
| PermissionWrite uint8 = 2 | ||
| PermissionExecute uint8 = 4 | ||
| ) | ||
|
|
||
| type ACL struct { | ||
| c blockstore.Client | ||
| logger logging.Logger | ||
| f *feed.API | ||
| lock sync.Mutex | ||
| listMap map[string]map[string]uint8 | ||
| } | ||
|
|
||
| func (a *ACL) GetGroupMembers(groupName, ownerAddress string) (map[string]uint8, error) { | ||
| err := a.loadPermissions(groupName, ownerAddress) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| a.lock.Lock() | ||
| defer a.lock.Unlock() | ||
| return a.listMap[groupName], nil | ||
| } | ||
|
|
||
| func (a *ACL) UpdatePermission(groupName, ownerAddress, memberAddress string, permission uint8) error { | ||
| a.lock.Lock() | ||
| a.listMap[groupName][memberAddress] = permission | ||
| a.lock.Unlock() | ||
|
|
||
| return a.storePermissions(groupName, ownerAddress) | ||
| } | ||
|
|
||
| func (a *ACL) GetPermission(groupName, ownerAddress, memberAddress string) (uint8, error) { | ||
| err := a.loadPermissions(groupName, ownerAddress) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| a.lock.Lock() | ||
| defer a.lock.Unlock() | ||
|
|
||
| return a.listMap[groupName][memberAddress], nil | ||
| } | ||
|
|
||
| func (a *ACL) CreateGroup(groupName, ownerAddress string) error { | ||
| return a.storePermissions(groupName, ownerAddress) | ||
| } | ||
|
|
||
| func (a *ACL) AddMember(groupName, ownerAddress, memberAddress string, permission uint8) error { | ||
| a.lock.Lock() | ||
| a.listMap[groupName][memberAddress] = permission | ||
| a.lock.Unlock() | ||
| return a.storePermissions(groupName, ownerAddress) | ||
| } | ||
|
|
||
| func (a *ACL) RemoveMember(groupName, ownerAddress, memberAddress string) error { | ||
| a.lock.Lock() | ||
| delete(a.listMap[groupName], memberAddress) | ||
| a.lock.Unlock() | ||
| return a.storePermissions(groupName, ownerAddress) | ||
| } | ||
|
|
||
| func (a *ACL) RemoveGroup(groupName, ownerAddress string) error { | ||
| a.lock.Lock() | ||
| delete(a.listMap, groupName) | ||
| a.lock.Unlock() | ||
| return a.storePermissions(groupName, ownerAddress) | ||
| } | ||
|
|
||
| func NewACL(c blockstore.Client, f *feed.API, logger logging.Logger) *ACL { | ||
| return &ACL{ | ||
| c: c, | ||
| f: f, | ||
| logger: logger, | ||
| listMap: map[string]map[string]uint8{}, | ||
| } | ||
| } | ||
|
|
||
| func (a *ACL) loadPermissions(group, ownerAddress string) error { | ||
| f2 := f.NewFile("", a.c, a.f, utils.HexToAddress(ownerAddress), nil, a.logger) | ||
| topicString := utils.CombinePathAndFile(ownerAddress, group) | ||
| r, _, err := f2.Download(topicString, "") | ||
| if err != nil { // skipcq: TCV-001 | ||
| return err | ||
| } | ||
| permissions := map[string]uint8{} | ||
| data, err := io.ReadAll(r) | ||
| if err != nil { // skipcq: TCV-001 | ||
| return err | ||
| } | ||
|
|
||
| if len(data) == 0 { | ||
| a.listMap[group] = permissions | ||
| return nil | ||
| } | ||
|
|
||
| err = json.Unmarshal(data, &permissions) | ||
| if err != nil { // skipcq: TCV-001 | ||
| return err | ||
| } | ||
|
|
||
| a.lock.Lock() | ||
| defer a.lock.Unlock() | ||
| a.listMap[group] = permissions | ||
| return nil | ||
| } | ||
|
|
||
| func (a *ACL) storePermissions(group, ownerAddress string) error { | ||
| a.lock.Lock() | ||
| defer a.lock.Unlock() | ||
| permissions := map[string]uint8{} | ||
| if _, ok := a.listMap[group]; ok { | ||
| permissions = a.listMap[group] | ||
| } else { | ||
| permissions[ownerAddress] = PermissionWrite | ||
| a.listMap[group] = permissions | ||
| } | ||
| data, err := json.Marshal(&permissions) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| f2 := f.NewFile("", a.c, a.f, utils.HexToAddress(ownerAddress), nil, a.logger) | ||
| topicString := utils.CombinePathAndFile(ownerAddress, group) | ||
| return f2.Upload(bytes.NewReader(data), topicString, int64(len(data)), f.MinBlockSize, 0, "/", "gzip", "") | ||
| } |
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