auth
2015-05-17
Parent:6f473576c6ae
auth/session_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 "time"
6 "code.secondbit.org/uuid.hg"
8 "github.com/lib/pq"
9 "github.com/secondbit/pan"
10 )
12 func (s Session) GetSQLTableName() string {
13 return "sessions"
14 }
16 func (p *postgres) createSessionSQL(session Session) *pan.Query {
17 fields, values := pan.GetFields(session)
18 query := pan.New(pan.POSTGRES, "INSERT INTO "+pan.GetTableName(session))
19 query.Include("(" + pan.QueryList(fields) + ")")
20 query.Include("VALUES")
21 query.Include("("+pan.VariableList(len(values))+")", values...)
22 return query.FlushExpressions(" ")
23 }
25 func (p *postgres) createSession(session Session) error {
26 query := p.createSessionSQL(session)
27 _, err := p.db.Exec(query.String(), query.Args...)
28 if e, ok := err.(*pq.Error); ok && e.Constraint == "sessions_pkey" {
29 err = ErrSessionAlreadyExists
30 }
31 return err
32 }
34 func (p *postgres) getSessionSQL(id string) *pan.Query {
35 var session Session
36 fields, _ := pan.GetFields(session)
37 query := pan.New(pan.POSTGRES, "SELECT "+pan.QueryList(fields)+" FROM "+pan.GetTableName(session))
38 query.IncludeWhere()
39 query.Include(pan.GetUnquotedColumn(session, "ID")+" = ?", id)
40 return query.FlushExpressions(" ")
41 }
43 func (p *postgres) getSession(id string) (Session, error) {
44 query := p.getSessionSQL(id)
45 rows, err := p.db.Query(query.String(), query.Args...)
46 if err != nil {
47 return Session{}, err
48 }
49 var session Session
50 var found bool
51 for rows.Next() {
52 err := pan.Unmarshal(rows, &session)
53 if err != nil {
54 return session, err
55 }
56 found = true
57 }
58 if err = rows.Err(); err != nil {
59 return session, err
60 }
61 if !found {
62 return session, ErrSessionNotFound
63 }
64 return session, nil
65 }
67 func (p *postgres) terminateSessionSQL(id string) *pan.Query {
68 var session Session
69 query := pan.New(pan.POSTGRES, "UPDATE "+pan.GetTableName(session)+" SET")
70 query.Include(pan.GetUnquotedColumn(session, "Active")+" = ?", false)
71 query.IncludeWhere()
72 query.Include(pan.GetUnquotedColumn(session, "ID")+" = ?", id)
73 return query.FlushExpressions(" ")
74 }
76 func (p *postgres) terminateSession(id string) error {
77 query := p.terminateSessionSQL(id)
78 res, err := p.db.Exec(query.String(), query.Args...)
79 if err != nil {
80 return err
81 }
82 rows, err := res.RowsAffected()
83 if err != nil {
84 return err
85 }
86 if rows < 1 {
87 return ErrSessionNotFound
88 }
89 return nil
90 }
92 func (p *postgres) terminateSessionsByProfileSQL(profile uuid.ID) *pan.Query {
93 var session Session
94 query := pan.New(pan.POSTGRES, "UPDATE "+pan.GetTableName(session)+" SET")
95 query.Include(pan.GetUnquotedColumn(session, "Active")+" = ?", false)
96 query.IncludeWhere()
97 query.Include(pan.GetUnquotedColumn(session, "ProfileID")+" = ?", profile)
98 return query.FlushExpressions(" ")
99 }
101 func (p *postgres) terminateSessionsByProfile(profile uuid.ID) error {
102 query := p.terminateSessionsByProfileSQL(profile)
103 res, err := p.db.Exec(query.String(), query.Args...)
104 if err != nil {
105 return err
106 }
107 rows, err := res.RowsAffected()
108 if err != nil {
109 return err
110 }
111 if rows < 1 {
112 return ErrProfileNotFound
113 }
114 return nil
115 }
117 func (p *postgres) removeSessionSQL(id string) *pan.Query {
118 var session Session
119 query := pan.New(pan.POSTGRES, "DELETE FROM "+pan.GetTableName(session))
120 query.IncludeWhere()
121 query.Include(pan.GetUnquotedColumn(session, "ID")+" = ?", id)
122 return query.FlushExpressions(" ")
123 }
125 func (p *postgres) removeSession(id string) error {
126 query := p.removeSessionSQL(id)
127 res, err := p.db.Exec(query.String(), query.Args...)
128 if err != nil {
129 return err
130 }
131 rows, err := res.RowsAffected()
132 if err != nil {
133 return err
134 }
135 if rows < 1 {
136 return ErrSessionNotFound
137 }
138 return nil
139 }
141 func (p *postgres) listSessionsSQL(profile uuid.ID, before time.Time, num int64) *pan.Query {
142 var session Session
143 fields, _ := pan.GetFields(session)
144 query := pan.New(pan.POSTGRES, "SELECT "+pan.QueryList(fields)+" FROM "+pan.GetTableName(session))
145 query.IncludeWhere()
146 query.Include(pan.GetUnquotedColumn(session, "ProfileID")+" = ?", profile)
147 if !before.IsZero() {
148 query.Include(pan.GetUnquotedColumn(session, "Created")+" < ?", before)
149 }
150 query.FlushExpressions(" AND ")
151 if num > 0 {
152 query.IncludeLimit(num)
153 }
154 return query.FlushExpressions(" ")
155 }
157 func (p *postgres) listSessions(profile uuid.ID, before time.Time, num int64) ([]Session, error) {
158 query := p.listSessionsSQL(profile, before, num)
159 rows, err := p.db.Query(query.String(), query.Args...)
160 if err != nil {
161 return []Session{}, err
162 }
163 var sessions []Session
164 for rows.Next() {
165 var session Session
166 err := pan.Unmarshal(rows, &session)
167 if err != nil {
168 return sessions, err
169 }
170 sessions = append(sessions, session)
171 }
172 if err = rows.Err(); err != nil {
173 return sessions, err
174 }
175 return sessions, nil
176 }