aboutsummaryrefslogtreecommitdiffstats
path: root/src/dcm/pkg/module/userpermissions.go
blob: cf961a6520febbb9d82f3cb1247b76eccffa16f5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
/*
* Copyright 2020 Intel Corporation, 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 module

import (
    pkgerrors "github.com/pkg/errors"
)

// UserPermission contains the parameters needed for a user permission
type UserPermission struct {
    UserPermissionName      string          `json:"name"`
    APIGroups               []string        `json:"apiGroups"`
    Resources               []string        `json:"resources"`
    Verbs                   []string        `json:"verbs"`
}

// UserPermissionKey is the key structure that is used in the database
type UserPermissionKey struct {
    Project                 string      `json:"project"`
    LogicalCloudName        string      `json:"logical-cloud-name"`
    UserPermissionName      string      `json:"upname"`
}

// UserPermissionManager is an interface that exposes the connection
// functionality
type UserPermissionManager interface {
    CreateUserPerm(project, logicalCloud string, c UserPermission) (UserPermission, error)
    GetUserPerm(project, logicalCloud, name string) (UserPermission, error)
    GetAllUserPerms(project, logicalCloud string) ([]UserPermission, error)
    DeleteUserPerm(project, logicalCloud, name string) error
    UpdateUserPerm(project, logicalCloud, name string, c UserPermission) (UserPermission, error)
}

// UserPermissionClient implements the UserPermissionManager
// It will also be used to maintain some localized state
type UserPermissionClient struct {
    storeName   string
    tagMeta     string
    util        Utility
}

// UserPermissionClient returns an instance of the UserPermissionClient
// which implements the UserPermissionManager
func NewUserPermissionClient() *UserPermissionClient {
    service := DBService{}
    return &UserPermissionClient{
        storeName:  "orchestrator",
        tagMeta:    "userpermission",
        util:       service,
    }
}

// Create entry for the User Permission resource in the database
func (v *UserPermissionClient) CreateUserPerm(project, logicalCloud string, c UserPermission) (UserPermission, error) {

    //Construct key consisting of name
    key := UserPermissionKey {
        Project:            project,
        LogicalCloudName:   logicalCloud,
        UserPermissionName: c.UserPermissionName,
    }

    //Check if project exists
    err := v.util.CheckProject(project)
    if err != nil {
        return UserPermission{}, pkgerrors.New("Unable to find the project")
    }
    //check if logical cloud exists
    err = v.util.CheckLogicalCloud(project, logicalCloud)
    if err != nil {
        return UserPermission{}, pkgerrors.New("Unable to find the logical cloud")
    }

    //Check if this User Permission already exists
    _, err = v.GetUserPerm(project, logicalCloud, c.UserPermissionName)
    if err == nil {
        return UserPermission{}, pkgerrors.New("User Permission already exists")
    }

    err = v.util.DBInsert(v.storeName, key, nil, v.tagMeta, c)
    if err != nil {
        return UserPermission{}, pkgerrors.Wrap(err, "Creating DB Entry")
    }

    return c, nil
}

// Get returns User Permission for corresponding name
func (v *UserPermissionClient) GetUserPerm(project, logicalCloud, userPermName string) (UserPermission, error) {

    //Construct the composite key to select the entry
    key := UserPermissionKey{
        Project:            project,
        LogicalCloudName:   logicalCloud,
        UserPermissionName: userPermName,
    }

    value, err := v.util.DBFind(v.storeName, key, v.tagMeta)
    if err != nil {
        return UserPermission{}, pkgerrors.Wrap(err, "Get User Permission")
    }

    //value is a byte array
    if value != nil {
        up := UserPermission{}
        err = v.util.DBUnmarshal(value[0], &up)
        if err != nil {
            return UserPermission{}, pkgerrors.Wrap(err, "Unmarshaling value")
        }
        return up, nil
    }

    return UserPermission{}, pkgerrors.New("Error getting User Permission")
}

// GetAll lists all user permissions
func (v *UserPermissionClient) GetAllUserPerms(project, logicalCloud string) ([]UserPermission, error) {
    //Construct the composite key to select the entry
    key := UserPermissionKey {
        Project:            project,
        LogicalCloudName:   logicalCloud,
        UserPermissionName: "",
    }
    var resp  []UserPermission
    values, err := v.util.DBFind(v.storeName, key, v.tagMeta)
    if err != nil {
        return []UserPermission{}, pkgerrors.Wrap(err, "Get All User Permissions")
    }

    for _, value := range values {
        up := UserPermission{}
        err = v.util.DBUnmarshal(value, &up)
        if err != nil {
            return []UserPermission{}, pkgerrors.Wrap(err, "Unmarshaling value")
        }
        resp = append(resp, up)
    }
    return resp, nil
}
// Delete the User Permission entry from database
func (v *UserPermissionClient) DeleteUserPerm(project, logicalCloud, userPermName string) error {
    //Construct the composite key to select the entry
    key := UserPermissionKey{
        Project:            project,
        LogicalCloudName:   logicalCloud,
        UserPermissionName: userPermName,
    }
    err := v.util.DBRemove(v.storeName, key)
        if err != nil {
                return pkgerrors.Wrap(err, "Delete User Permission")
        }
        return nil
}

// Update an entry for the User Permission in the database
func (v *UserPermissionClient) UpdateUserPerm(project, logicalCloud, userPermName string, c UserPermission) (
    UserPermission, error) {

    key := UserPermissionKey{
        Project:            project,
        LogicalCloudName:   logicalCloud,
        UserPermissionName: userPermName,
    }
    //Check for URL name and json permission name mismatch
    if c.UserPermissionName != userPermName {
        return UserPermission{}, pkgerrors.New("Update Error - Permission name mismatch")
    }
    //Check if this User Permission exists
    _, err := v.GetUserPerm(project, logicalCloud, userPermName)
    if err != nil {
        return UserPermission{}, pkgerrors.New(
            "Update Error - User Permission doesn't exist")
    }
    err = v.util.DBInsert(v.storeName, key, nil, v.tagMeta, c)
    if err != nil {
        return UserPermission{}, pkgerrors.Wrap(err, "Updating DB Entry")
    }
    return c, nil
}