Mercurial > gemma

annotate controllers/pwreset.go @ 339:33b59c848771

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Factored out some miscellaneous code into own package.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 05 Aug 2018 15:35:29 +0200
parents 394fafeb4052
children ac23905e64b1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 package controllers
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
3 import (
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
4 "bytes"
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 "database/sql"
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
6 "encoding/hex"
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7 "log"
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8 "net/http"
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
9 "os/exec"
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10 "strings"
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
11 "text/template"
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
12 "time"
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13
339
33b59c848771 Factored out some miscellaneous code into own package.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 332
diff changeset
14 "github.com/gorilla/mux"
33b59c848771 Factored out some miscellaneous code into own package.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 332
diff changeset
15
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16 "gemma.intevation.de/gemma/auth"
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 "gemma.intevation.de/gemma/config"
339
33b59c848771 Factored out some miscellaneous code into own package.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 332
diff changeset
18 "gemma.intevation.de/gemma/misc"
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 )
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
21 const (
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
22 insertRequestSQL = `INSERT INTO pw_reset.password_reset_requests
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
23 (hash, username) VALUES ($1, $2)`
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
24
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
25 countRequestsSQL = `SELECT count(*) FROM pw_reset.password_reset_requests`
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
26
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
27 countRequestsUserSQL = `SELECT count(*) FROM pw_reset.password_reset_requests
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
28 WHERE username = $1`
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
29
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
30 deleteRequestSQL = `DELETE FROM pw_reset.password_reset_requests
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
31 WHERE hash = $1`
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
32
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
33 findRequestSQL = `SELECT lu.email_address, lu.username
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
34 FROM pw_reset.password_reset_requests prr
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
35 JOIN pw_reset.list_users lu on prr.username = lu.username
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
36 WHERE prr.hash = $1`
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
37
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
38 cleanupRequestsSQL = `DELETE FROM pw_reset.password_reset_requests
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
39 WHERE issued < $1`
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
40
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
41 userExistsSQL = `SELECT email_address
319
ac760b0f22a9 Add special role for password reset
Tom Gottfried <tom@intevation.de>
parents: 317
diff changeset
42 FROM pw_reset.list_users WHERE username = $1`
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
43
319
ac760b0f22a9 Add special role for password reset
Tom Gottfried <tom@intevation.de>
parents: 317
diff changeset
44 updatePasswordSQL = `UPDATE pw_reset.list_users
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
45 SET pw = $1 WHERE username = $2`
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
46 )
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
47
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
48 const (
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
49 hashLength = 16
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
50 passwordLength = 20
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
51 passwordResetValid = 12 * time.Hour
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
52 maxPasswordResets = 1000
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
53 maxPasswordRequestsPerUser = 5
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
54 cleanupPause = 15 * time.Minute
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
55 )
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
56
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
57 var (
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
58 passwordResetRequestMailTmpl = template.Must(
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
59 template.New("request").Parse(`You have requested a password change
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
60 for your account {{ .User }} on
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
61 {{ .HTTPS }}://{{ .Server }}
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
62
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
63 Please follow this link to get to the page where you can change your password.
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
64
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
65 {{ .HTTPS }}://{{ .Server }}/api/users/passwordreset/{{ .Hash }}
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
66
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
67 The link is only valid for 12 hours.
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
68
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
69 Best regards
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
70 Your service team`))
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
71
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
72 passwordResetMailTmpl = template.Must(
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
73 template.New("reset").Parse(`Your password for your account {{ .User }} on
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
74 {{ .HTTPS }}://{{ .Server }}
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
75
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
76 has been changed to
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
77 {{ .Password }}
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
78
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
79 Change it as soon as possible.
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
80
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
81 Best regards
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
82 Your service team`))
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
83 )
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
84
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
85 func asServiceUser(fn func(*sql.DB) error) error {
332
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 322
diff changeset
86 db, err := auth.OpenDB(config.ServiceUser(), config.ServicePassword())
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
87 if err == nil {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
88 defer db.Close()
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
89 err = fn(db)
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
90 }
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
91 return err
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
92 }
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
93
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
94 func init() {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
95 go removeOutdated()
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
96 }
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
97
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
98 func removeOutdated() {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
99 for {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
100 time.Sleep(cleanupPause)
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
101 err := asServiceUser(func(db *sql.DB) error {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
102 good := time.Now().Add(-passwordResetValid)
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
103 _, err := db.Exec(cleanupRequestsSQL, good)
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
104 return err
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
105 })
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
106 if err != nil {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
107 log.Printf("error: %v\n", err)
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
108 }
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
109 }
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
110 }
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
111
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
112 func requestMessageBody(https, user, hash, server string) string {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
113 var content = struct {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
114 User string
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
115 HTTPS string
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
116 Server string
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
117 Hash string
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
118 }{
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
119 User: user,
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
120 HTTPS: https,
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
121 Server: server,
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
122 Hash: hash,
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
123 }
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
124 var buf bytes.Buffer
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
125 if err := passwordResetRequestMailTmpl.Execute(&buf, &content); err != nil {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
126 log.Printf("error: %v\n", err)
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
127 }
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
128 return buf.String()
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
129 }
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
130
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
131 func changedMessageBody(https, user, password, server string) string {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
132 var content = struct {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
133 User string
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
134 HTTPS string
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
135 Server string
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
136 Password string
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
137 }{
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
138 User: user,
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
139 HTTPS: https,
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
140 Server: server,
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
141 Password: password,
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
142 }
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
143 var buf bytes.Buffer
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
144 if err := passwordResetMailTmpl.Execute(&buf, &content); err != nil {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
145 log.Printf("error: %v\n", err)
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
146 }
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
147 return buf.String()
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
148 }
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
149
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
150 func useHTTPS(req *http.Request) string {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
151 if strings.ToLower(req.URL.Scheme) == "https" {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
152 return "https"
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
153 }
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
154 return "http"
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
155 }
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
156
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
157 func generateHash() string {
339
33b59c848771 Factored out some miscellaneous code into own package.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 332
diff changeset
158 return hex.EncodeToString(misc.GenerateRandomKey(hashLength))
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
159 }
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
160
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
161 func generateNewPassword() string {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
162 // First try pwgen
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
163 out, err := exec.Command("pwgen", "-y", "20", "1").Output()
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
164 if err == nil {
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
165 return strings.TrimSpace(string(out))
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
166 }
317
5cb18bedb3a9 Simplified internal password generator.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 316
diff changeset
167 // Use internal generator.
339
33b59c848771 Factored out some miscellaneous code into own package.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 332
diff changeset
168 return misc.RandomString(20)
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
169 }
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
170
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
171 func passwordResetRequest(
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
172 input interface{},
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
173 req *http.Request,
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
174 _ *sql.DB,
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
175 ) (jr JSONResult, err error) {
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
176
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
177 user := input.(*PWResetUser)
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
178
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
179 if user.User == "" {
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
180 err = JSONError{http.StatusBadRequest, "Invalid user name"}
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
181 return
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
182 }
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
183
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
184 var hash, email string
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
185
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
186 if err = asServiceUser(func(db *sql.DB) error {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
187
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
188 var count int64
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
189 if err := db.QueryRow(countRequestsSQL).Scan(&count); err != nil {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
190 return err
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
191 }
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
192
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
193 // Limit total number of password requests.
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
194 if count >= maxPasswordResets {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
195 return JSONError{
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
196 Code: http.StatusServiceUnavailable,
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
197 Message: "Too much password reset request",
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
198 }
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
199 }
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
200
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
201 err := db.QueryRow(userExistsSQL, user.User).Scan(&email)
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
202
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
203 switch {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
204 case err == sql.ErrNoRows:
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
205 return JSONError{http.StatusNotFound, "User does not exist."}
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
206 case err != nil:
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
207 return err
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
208 }
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
209
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
210 if err := db.QueryRow(countRequestsUserSQL, user.User).Scan(&count); err != nil {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
211 return err
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
212 }
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
213
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
214 // Limit requests per user
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
215 if count >= maxPasswordRequestsPerUser {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
216 return JSONError{
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
217 Code: http.StatusServiceUnavailable,
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
218 Message: "Too much password reset requests for user",
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
219 }
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
220 }
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
221
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
222 hash = generateHash()
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
223 _, err = db.Exec(insertRequestSQL, hash, user.User)
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
224 return err
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
225 }); err == nil {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
226 body := requestMessageBody(useHTTPS(req), user.User, hash, req.Host)
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
227
339
33b59c848771 Factored out some miscellaneous code into own package.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 332
diff changeset
228 if err = misc.SendMail(email, "Password Reset Link", body); err == nil {
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
229 jr.Result = &struct {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
230 SendTo string `json:"send-to"`
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
231 }{email}
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
232 }
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
233 }
302
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
234 return
0777aa6de45b Password reset. Part I
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
235 }
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
236
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
237 func passwordReset(
316
423d0f1d8ee0 JSON input is not used when doing a password reset.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 315
diff changeset
238 _ interface{},
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
239 req *http.Request,
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
240 _ *sql.DB,
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
241 ) (jr JSONResult, err error) {
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
242
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
243 hash := mux.Vars(req)["hash"]
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
244 if _, err = hex.DecodeString(hash); err != nil {
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
245 err = JSONError{http.StatusBadRequest, "Invalid hash"}
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
246 return
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
247 }
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
248
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
249 var email, user, password string
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
250
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
251 if err = asServiceUser(func(db *sql.DB) error {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
252 err := db.QueryRow(findRequestSQL, hash).Scan(&email, &user)
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
253 switch {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
254 case err == sql.ErrNoRows:
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
255 return JSONError{http.StatusNotFound, "No such hash"}
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
256 case err != nil:
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
257 return err
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
258 }
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
259 password = generateNewPassword()
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
260 res, err := db.Exec(updatePasswordSQL, password, user)
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
261 if err != nil {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
262 return err
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
263 }
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
264 if n, err2 := res.RowsAffected(); err2 == nil && n == 0 {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
265 return JSONError{http.StatusNotFound, "User not found"}
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
266 }
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
267 _, err = db.Exec(deleteRequestSQL, hash)
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
268 return err
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
269 }); err == nil {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
270 body := changedMessageBody(useHTTPS(req), user, password, req.Host)
339
33b59c848771 Factored out some miscellaneous code into own package.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 332
diff changeset
271 if err = misc.SendMail(email, "Password Reset Done", body); err == nil {
321
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
272 jr.Result = &struct {
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
273 SendTo string `json:"send-to"`
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
274 }{email}
974a5e4c0055 Persist password reset requests in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 319
diff changeset
275 }
310
4bee4ba6dc58 Password reset: Part III
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 304
diff changeset
276 }
304
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
277 return
69e291f26bbd Password reset: Part II.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
278 }