auth
2015-05-17
Parent:581c60f8dd23
auth/token_postgres.go
Make client use our auth(n/z) scheme. Our auth(n/z) scheme can be loosely defined as "encrypted tokens that nginx transforms into headers" and "scopes for bypassing ACL". Our Go client, which is what we'll be using to have services communicate with each other, follows this paradigm now by auto-injecting the headers we'll need to identify ourselves. This will work behind our firewall, but will be useless for the rest of the world, which will need to go through the nginx bastion that can strip the headers and replace them with the headers appropriate to the token attached to the request. This did involve setting a static client ID as the client for our email_verification listener. Ideally, this would cause Client registration (using that ID) when the listener starts up, ignoring ErrClientAlreadyExists. I don't want to have to write the code that will allow us to bypass the Client ACL properly right now, though, so we're just going to have to remember to manually create that Client. Or not. I don't think it will do any harm (outside the OAuth flow) to be using a Client ID that doesn't actually point to a Client. I just think it'd be good for record-keeping purposes.
1 package auth
3 import (
4 "code.secondbit.org/uuid.hg"
6 "github.com/lib/pq"
7 "github.com/secondbit/pan"
8 )
10 func (t Token) GetSQLTableName() string {
11 return "tokens"
12 }
14 func (p *postgres) getTokenSQL(token string, refresh bool) *pan.Query {
15 var t Token
16 fields, _ := pan.GetFields(t)
17 query := pan.New(pan.POSTGRES, "SELECT "+pan.QueryList(fields)+" FROM "+pan.GetTableName(t))
18 query.IncludeWhere()
19 if !refresh {
20 query.Include(pan.GetUnquotedColumn(t, "AccessToken")+" = ?", token)
21 } else {
22 query.Include(pan.GetUnquotedColumn(t, "RefreshToken")+" = ?", token)
23 }
24 return query.FlushExpressions(" ")
25 }
27 func (p *postgres) getToken(token string, refresh bool) (Token, error) {
28 query := p.getTokenSQL(token, refresh)
29 rows, err := p.db.Query(query.String(), query.Args...)
30 if err != nil {
31 return Token{}, err
32 }
33 var t Token
34 var found bool
35 for rows.Next() {
36 err := pan.Unmarshal(rows, &t)
37 if err != nil {
38 return t, err
39 }
40 found = true
41 }
42 if err = rows.Err(); err != nil {
43 return t, err
44 }
45 if !found {
46 return t, ErrTokenNotFound
47 }
48 return t, nil
49 }
51 func (p *postgres) saveTokenSQL(token Token) *pan.Query {
52 fields, values := pan.GetFields(token)
53 query := pan.New(pan.POSTGRES, "INSERT INTO "+pan.GetTableName(token))
54 query.Include("(" + pan.QueryList(fields) + ")")
55 query.Include("VALUES")
56 query.Include("("+pan.VariableList(len(values))+")", values...)
57 return query.FlushExpressions(" ")
58 }
60 func (p *postgres) saveToken(token Token) error {
61 query := p.saveTokenSQL(token)
62 _, err := p.db.Exec(query.String(), query.Args...)
63 if e, ok := err.(*pq.Error); ok && e.Constraint == "tokens_pkey" {
64 err = ErrTokenAlreadyExists
65 }
66 if err != nil || len(token.Scopes) < 1 {
67 return err
68 }
69 return err
70 }
72 func (p *postgres) revokeTokenSQL(token string) *pan.Query {
73 var t Token
74 query := pan.New(pan.POSTGRES, "UPDATE "+pan.GetTableName(t)+" SET ")
75 query.Include(pan.GetUnquotedColumn(t, "Revoked")+" = ?", true)
76 query.IncludeWhere()
77 query.Include(pan.GetUnquotedColumn(t, "RefreshToken")+" = ?", token)
78 return query.FlushExpressions(" ")
79 }
81 func (p *postgres) revokeToken(token string) error {
82 query := p.revokeTokenSQL(token)
83 res, err := p.db.Exec(query.String(), query.Args...)
84 if err != nil {
85 return err
86 }
87 rows, err := res.RowsAffected()
88 if err != nil {
89 return err
90 }
91 if rows == 0 {
92 return ErrTokenNotFound
93 }
94 return nil
95 }
97 func (p *postgres) revokeTokensByProfileIDSQL(profileID uuid.ID) *pan.Query {
98 var t Token
99 query := pan.New(pan.POSTGRES, "UPDATE "+pan.GetTableName(t)+" SET ")
100 query.Include(pan.GetUnquotedColumn(t, "Revoked")+" = ?", true)
101 query.IncludeWhere()
102 query.Include(pan.GetUnquotedColumn(t, "ProfileID")+" = ?", profileID)
103 return query.FlushExpressions(" ")
104 }
106 func (p *postgres) revokeTokensByProfileID(profileID uuid.ID) error {
107 query := p.revokeTokensByProfileIDSQL(profileID)
108 res, err := p.db.Exec(query.String(), query.Args...)
109 if err != nil {
110 return err
111 }
112 rows, err := res.RowsAffected()
113 if err != nil {
114 return err
115 }
116 if rows == 0 {
117 return ErrProfileNotFound
118 }
119 return nil
120 }
122 func (p *postgres) revokeTokensByClientIDSQL(clientID uuid.ID) *pan.Query {
123 var t Token
124 query := pan.New(pan.POSTGRES, "UPDATE "+pan.GetTableName(t)+" SET ")
125 query.Include(pan.GetUnquotedColumn(t, "Revoked")+" = ?", true)
126 query.IncludeWhere()
127 query.Include(pan.GetUnquotedColumn(t, "ClientID")+" = ?", clientID)
128 return query.FlushExpressions(" ")
129 }
131 func (p *postgres) revokeTokensByClientID(clientID uuid.ID) error {
132 query := p.revokeTokensByClientIDSQL(clientID)
133 res, err := p.db.Exec(query.String(), query.Args...)
134 if err != nil {
135 return err
136 }
137 rows, err := res.RowsAffected()
138 if err != nil {
139 return err
140 }
141 if rows == 0 {
142 return ErrClientNotFound
143 }
144 return nil
145 }
147 func (p *postgres) getTokensByProfileIDSQL(profileID uuid.ID, num, offset int) *pan.Query {
148 var token Token
149 fields, _ := pan.GetFields(token)
150 query := pan.New(pan.POSTGRES, "SELECT "+pan.QueryList(fields)+" FROM "+pan.GetTableName(token))
151 query.IncludeWhere()
152 query.Include(pan.GetUnquotedColumn(token, "ProfileID")+" = ?", profileID)
153 query.IncludeLimit(int64(num))
154 query.IncludeOffset(int64(offset))
155 return query.FlushExpressions(" ")
156 }
158 func (p *postgres) getTokensByProfileID(profileID uuid.ID, num, offset int) ([]Token, error) {
159 query := p.getTokensByProfileIDSQL(profileID, num, offset)
160 rows, err := p.db.Query(query.String(), query.Args...)
161 if err != nil {
162 return []Token{}, err
163 }
164 var tokens []Token
165 var tokenIDs []string
166 for rows.Next() {
167 var token Token
168 err = pan.Unmarshal(rows, &token)
169 if err != nil {
170 return tokens, err
171 }
172 tokens = append(tokens, token)
173 tokenIDs = append(tokenIDs, token.AccessToken)
174 }
175 if err = rows.Err(); err != nil {
176 return tokens, err
177 }
178 return tokens, nil
179 }