auth
auth/token_postgres.go
Enable terminating sessions through the API. Add a terminateSession method to the sessionStore that sets the Active property of the Session to false. Create a Context.TerminateSession wrapper for the terminateSession method on the sessionStore. Add a Sessions property to our response type so we can return a []Session in API responses. Use the URL-safe encoding when base64 encoding our session ID and CSRFToken, so the ID can be passed in the URL and so our encodings are consistent. Add a TerminateSessionHandler function that will extract a Session ID from the request URL, authenticate the user, check that the authenticated user owns the session in question, and terminate the session. Add implementations for our new terminateSession method for the memstore and postgres types. Test both the memstore and postgres implementation of our terminateSession helper in session_test.go.
1 package auth
3 import (
4 "code.secondbit.org/uuid.hg"
6 "github.com/lib/pq"
7 "github.com/secondbit/pan"
8 )
10 type tokenScope struct {
11 Token string
12 Scope string
13 }
15 func (t tokenScope) GetSQLTableName() string {
16 return "scopes_tokens"
17 }
19 func (t Token) GetSQLTableName() string {
20 return "tokens"
21 }
23 func (p *postgres) getTokenSQL(token string, refresh bool) *pan.Query {
24 var t Token
25 fields, _ := pan.GetFields(t)
26 query := pan.New(pan.POSTGRES, "SELECT "+pan.QueryList(fields)+" FROM "+pan.GetTableName(t))
27 query.IncludeWhere()
28 if !refresh {
29 query.Include(pan.GetUnquotedColumn(t, "AccessToken")+" = ?", token)
30 } else {
31 query.Include(pan.GetUnquotedColumn(t, "RefreshToken")+" = ?", token)
32 }
33 return query.FlushExpressions(" ")
34 }
36 func (p *postgres) getToken(token string, refresh bool) (Token, error) {
37 query := p.getTokenSQL(token, refresh)
38 rows, err := p.db.Query(query.String(), query.Args...)
39 if err != nil {
40 return Token{}, err
41 }
42 var t Token
43 var found bool
44 for rows.Next() {
45 err := pan.Unmarshal(rows, &t)
46 if err != nil {
47 return t, err
48 }
49 found = true
50 }
51 if err = rows.Err(); err != nil {
52 return t, err
53 }
54 if !found {
55 return t, ErrTokenNotFound
56 }
57 query = p.getTokenScopesSQL([]string{t.AccessToken})
58 rows, err = p.db.Query(query.String(), query.Args...)
59 if err != nil {
60 return t, err
61 }
62 for rows.Next() {
63 var ts tokenScope
64 err = pan.Unmarshal(rows, &ts)
65 if err != nil {
66 return t, err
67 }
68 t.Scopes = append(t.Scopes, ts.Scope)
69 }
70 if err = rows.Err(); err != nil {
71 return t, err
72 }
73 return t, nil
74 }
76 func (p *postgres) saveTokenSQL(token Token) *pan.Query {
77 fields, values := pan.GetFields(token)
78 query := pan.New(pan.POSTGRES, "INSERT INTO "+pan.GetTableName(token))
79 query.Include("(" + pan.QueryList(fields) + ")")
80 query.Include("VALUES")
81 query.Include("("+pan.VariableList(len(values))+")", values...)
82 return query.FlushExpressions(" ")
83 }
85 func (p *postgres) saveTokenScopesSQL(ts []tokenScope) *pan.Query {
86 fields, _ := pan.GetFields(ts[0])
87 query := pan.New(pan.POSTGRES, "INSERT INTO "+pan.GetTableName(ts[0]))
88 query.Include("(" + pan.QueryList(fields) + ")")
89 query.Include("VALUES")
90 query.FlushExpressions(" ")
91 for _, t := range ts {
92 _, values := pan.GetFields(t)
93 query.Include("("+pan.VariableList(len(values))+")", values...)
94 }
95 return query.FlushExpressions(", ")
96 }
98 func (p *postgres) saveToken(token Token) error {
99 query := p.saveTokenSQL(token)
100 _, err := p.db.Exec(query.String(), query.Args...)
101 if e, ok := err.(*pq.Error); ok && e.Constraint == "tokens_pkey" {
102 err = ErrTokenAlreadyExists
103 }
104 if err != nil || len(token.Scopes) < 1 {
105 return err
106 }
107 var ts []tokenScope
108 for _, scope := range token.Scopes {
109 ts = append(ts, tokenScope{Token: token.AccessToken, Scope: scope})
110 }
111 query = p.saveTokenScopesSQL(ts)
112 _, err = p.db.Exec(query.String(), query.Args...)
113 return err
114 }
116 func (p *postgres) revokeTokenSQL(token string, refresh bool) *pan.Query {
117 var t Token
118 query := pan.New(pan.POSTGRES, "UPDATE "+pan.GetTableName(t)+" SET ")
119 query.Include(pan.GetUnquotedColumn(t, "Revoked")+" = ?", true)
120 query.IncludeWhere()
121 if !refresh {
122 query.Include(pan.GetUnquotedColumn(t, "AccessToken")+" = ?", token)
123 } else {
124 query.Include(pan.GetUnquotedColumn(t, "RefreshToken")+" = ?", token)
125 }
126 return query.FlushExpressions(" ")
127 }
129 func (p *postgres) revokeToken(token string, refresh bool) error {
130 query := p.revokeTokenSQL(token, refresh)
131 res, err := p.db.Exec(query.String(), query.Args...)
132 if err != nil {
133 return err
134 }
135 rows, err := res.RowsAffected()
136 if err != nil {
137 return err
138 }
139 if rows == 0 {
140 return ErrTokenNotFound
141 }
142 return nil
143 }
145 func (p *postgres) getTokensByProfileIDSQL(profileID uuid.ID, num, offset int) *pan.Query {
146 var token Token
147 fields, _ := pan.GetFields(token)
148 query := pan.New(pan.POSTGRES, "SELECT "+pan.QueryList(fields)+" FROM "+pan.GetTableName(token))
149 query.IncludeWhere()
150 query.Include(pan.GetUnquotedColumn(token, "ProfileID")+" = ?", profileID)
151 query.IncludeLimit(int64(num))
152 query.IncludeOffset(int64(offset))
153 return query.FlushExpressions(" ")
154 }
156 func (p *postgres) getTokenScopesSQL(tokens []string) *pan.Query {
157 var t tokenScope
158 fields, _ := pan.GetFields(t)
159 tokensI := make([]interface{}, len(tokens))
160 for pos, token := range tokens {
161 tokensI[pos] = token
162 }
163 query := pan.New(pan.POSTGRES, "SELECT "+pan.QueryList(fields)+" FROM "+pan.GetTableName(t))
164 query.IncludeWhere()
165 query.Include(pan.GetUnquotedColumn(t, "Token")+" IN ("+pan.VariableList(len(tokensI))+")", tokensI...)
166 return query.FlushExpressions(" ")
167 }
169 func (p *postgres) getTokensByProfileID(profileID uuid.ID, num, offset int) ([]Token, error) {
170 query := p.getTokensByProfileIDSQL(profileID, num, offset)
171 rows, err := p.db.Query(query.String(), query.Args...)
172 if err != nil {
173 return []Token{}, err
174 }
175 var tokens []Token
176 var tokenIDs []string
177 for rows.Next() {
178 var token Token
179 err = pan.Unmarshal(rows, &token)
180 if err != nil {
181 return tokens, err
182 }
183 tokens = append(tokens, token)
184 tokenIDs = append(tokenIDs, token.AccessToken)
185 }
186 if err = rows.Err(); err != nil {
187 return tokens, err
188 }
189 if len(tokenIDs) < 1 {
190 return tokens, nil
191 }
192 scopes := map[string][]string{}
193 query = p.getTokenScopesSQL(tokenIDs)
194 rows, err = p.db.Query(query.String(), query.Args...)
195 if err != nil {
196 return tokens, err
197 }
198 for rows.Next() {
199 var t tokenScope
200 err = pan.Unmarshal(rows, &t)
201 if err != nil {
202 return tokens, err
203 }
204 scopes[t.Token] = append(scopes[t.Token], t.Scope)
205 }
206 if err = rows.Err(); err != nil {
207 return tokens, err
208 }
209 for pos, token := range tokens {
210 token.Scopes = scopes[token.AccessToken]
211 tokens[pos] = token
212 }
213 return tokens, nil
214 }