Mercurial > gemma

annotate controllers/user.go @ 253:322c3d0e05ef

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The column in sys_admin.list_users is called rolname not rolename.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 27 Jul 2018 12:12:48 +0200
parents deabc2712634
children de6fdb316b8f
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63dd5216eee4 Refactored gemma server to be more REST-like.
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1 package controllers
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2
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3 import (
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4 "database/sql"
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5 "database/sql/driver"
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6 "encoding/json"
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7 "errors"
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8 "net/http"
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9 "regexp"
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10 "strings"
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11
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12 "github.com/gorilla/mux"
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13
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14 "gemma.intevation.de/gemma/auth"
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15 )
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16
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17 type (
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18 Email string
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19 Country string
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20 Role string
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21
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22 BoundingBox struct {
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23 X1 float64 `json:"x1"`
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24 Y1 float64 `json:"y1"`
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25 X2 float64 `json:"x2"`
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26 Y2 float64 `json:"y2"`
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27 }
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28
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29 User struct {
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30 User string `json:"user"`
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31 Role Role `json:"role"`
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32 Password string `json:"password,omitempty"`
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33 Email Email `json:"email"`
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34 Country Country `json:"country"`
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35 Extent *BoundingBox `json:"extent"`
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36 }
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37 )
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38
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39 const (
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40 createUserSQL = `SELECT sys_admin.create_user($1, $2, $3, $4, NULL, $5)`
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41 createUserExtentSQL = `SELECT sys_admin.create_user($1, $2, $3, $4,
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42 ST_MakeBox2D(ST_Point($5, $6), ST_Point($7, $8)), $9)`
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43
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44 updateUserSQL = `SELECT sys_admin.update_user($1, $2, $3, $4, $5, NULL, $6)`
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45 updateUserExtentSQL = `SELECT sys_admin.update_user($1, $2, $3, $4, $5,
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46 ST_MakeBox2D(ST_Point($6, $7), ST_Point($8, $9)), $10)`
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47
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48 deleteUserSQL = `SELECT sys_admin.delete_user($1)`
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49
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50 listUsersSQL = `SELECT
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51 rolname,
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52 username,
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53 country,
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54 email_address,
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55 ST_XMin(map_extent), ST_YMin(map_extent),
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56 ST_XMax(map_extent), ST_YMax(map_extent)
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57 FROM sys_admin.list_users`
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58 )
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59
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60 var errNoString = errors.New("Not a string")
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61
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62 var (
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63 // https://stackoverflow.com/questions/201323/how-to-validate-an-email-address-using-a-regular-expression
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64 emailRe = regexp.MustCompile(
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65 `(?:[a-z0-9!#$%&'*+/=?^_` + "`" +
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66 `{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_` + "`" +
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67 `{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]` +
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68 `|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")` +
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69 `@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?` +
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70 `|\[(?:(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9]))\.){3}` +
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71 `(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9])|[a-z0-9-]*[a-z0-9]` +
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72 `:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]` +
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73 `|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])`)
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74 errNoEmailAddress = errors.New("Not a valid email address")
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75 )
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76
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77 func (e *Email) UnmarshalJSON(data []byte) error {
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78 var s string
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79 if err := json.Unmarshal(data, &s); err != nil {
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80 return err
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81 }
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82 if !emailRe.MatchString(s) {
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83 return errNoEmailAddress
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84 }
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85 *e = Email(s)
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86 return nil
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87 }
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88
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89 func (e Email) Value() (driver.Value, error) {
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90 return string(e), nil
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91 }
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92
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93 func (e *Email) Scan(src interface{}) (err error) {
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94 if s, ok := src.(string); ok {
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95 *e = Email(s)
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96 } else {
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97 err = errNoString
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98 }
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99 return
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100 }
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101
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102 var (
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103 validCountries = []string{
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104 "AT", "BG", "DE", "HU", "HR",
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105 "MD", "RO", "RS", "SK", "UA",
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106 }
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107 errNoValidCountry = errors.New("Not a valid country")
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108 )
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109
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110 func (c *Country) UnmarshalJSON(data []byte) error {
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111 var s string
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112 if err := json.Unmarshal(data, &s); err != nil {
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113 return err
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114 }
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115 s = strings.ToUpper(s)
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116 for _, v := range validCountries {
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117 if v == s {
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118 *c = Country(v)
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119 return nil
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120 }
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121 }
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122 return errNoValidCountry
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123 }
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124
243
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125 func (c Country) Value() (driver.Value, error) {
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126 return string(c), nil
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127 }
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128
250
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129 func (c *Country) Scan(src interface{}) (err error) {
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130 if s, ok := src.(string); ok {
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131 *c = Country(s)
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132 } else {
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133 err = errNoString
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134 }
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135 return
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136 }
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137
189
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138 var (
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139 validRoles = []string{
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140 "waterway_user",
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141 "waterway_admin",
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142 "sys_admin",
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143 }
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144 errNoValidRole = errors.New("Not a valid role")
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145 )
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146
243
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147 func (r Role) Value() (driver.Value, error) {
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148 return string(r), nil
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149 }
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150
250
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151 func (r *Role) Scan(src interface{}) (err error) {
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152 if s, ok := src.(string); ok {
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153 *r = Role(s)
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154 } else {
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155 err = errNoString
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156 }
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157 return
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158 }
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diff changeset
159
189
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160 func (r *Role) UnmarshalJSON(data []byte) error {
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161 var s string
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162 if err := json.Unmarshal(data, &s); err != nil {
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163 return err
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164 }
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165 s = strings.ToLower(s)
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166 for _, v := range validRoles {
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167 if v == s {
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168 *r = Role(v)
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169 return nil
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170 }
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171 }
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172 return errNoValidRole
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diff changeset
173 }
96bb671cdd98 Some input checking for email, roles and valid countries.
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diff changeset
174
240
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175 func deleteUser(
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176 rw http.ResponseWriter, req *http.Request,
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diff changeset
177 input interface{}, db *sql.DB,
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diff changeset
178 ) (jr JSONResult, err error) {
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diff changeset
179
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180 user := mux.Vars(req)["user"]
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diff changeset
181 if user == "" {
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diff changeset
182 err = JSONError{http.StatusBadRequest, "error: user empty"}
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diff changeset
183 return
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184 }
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diff changeset
185
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diff changeset
186 session, _ := auth.GetSession(req)
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diff changeset
187 if session.User == user {
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diff changeset
188 err = JSONError{http.StatusBadRequest, "error: cannot delete yourself"}
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diff changeset
189 return
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parents: 237
diff changeset
190 }
9012e4045da4 Implemented /user delete controller.
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parents: 237
diff changeset
191
9012e4045da4 Implemented /user delete controller.
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diff changeset
192 if _, err = db.Exec(deleteUserSQL, user); err != nil {
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parents: 237
diff changeset
193 return
9012e4045da4 Implemented /user delete controller.
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parents: 237
diff changeset
194 }
9012e4045da4 Implemented /user delete controller.
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parents: 237
diff changeset
195
9012e4045da4 Implemented /user delete controller.
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diff changeset
196 // Running in a go routine should not be necessary.
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diff changeset
197 go func() { auth.ConnPool.Logout(user) }()
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diff changeset
198
9012e4045da4 Implemented /user delete controller.
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diff changeset
199 jr = JSONResult{Code: http.StatusNoContent}
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diff changeset
200 return
9012e4045da4 Implemented /user delete controller.
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parents: 237
diff changeset
201 }
9012e4045da4 Implemented /user delete controller.
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parents: 237
diff changeset
202
237
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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diff changeset
203 func updateUser(
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diff changeset
204 rw http.ResponseWriter, req *http.Request,
240
9012e4045da4 Implemented /user delete controller.
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parents: 237
diff changeset
205 input interface{}, db *sql.DB,
237
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parents: 235
diff changeset
206 ) (jr JSONResult, err error) {
235
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
207
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
208 user := mux.Vars(req)["user"]
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
209 if user == "" {
237
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
210 err = JSONError{http.StatusBadRequest, "error: user empty"}
235
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
211 return
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
212 }
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
213
237
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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diff changeset
214 newUser := input.(*User)
235
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
215
237
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parents: 235
diff changeset
216 if newUser.Extent == nil {
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parents: 235
diff changeset
217 _, err = db.Exec(
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
218 updateUserSQL,
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
219 user,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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diff changeset
220 newUser.Role,
237
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parents: 235
diff changeset
221 newUser.User,
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parents: 235
diff changeset
222 newUser.Password,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
223 newUser.Country,
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
224 newUser.Email,
237
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
225 )
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 235
diff changeset
226 } else {
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
227 _, err = db.Exec(
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
228 updateUserExtentSQL,
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
229 user,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
230 newUser.Role,
237
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parents: 235
diff changeset
231 newUser.User,
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
232 newUser.Password,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
233 newUser.Country,
237
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parents: 235
diff changeset
234 newUser.Extent.X1, newUser.Extent.Y1,
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
235 newUser.Extent.X2, newUser.Extent.Y2,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
236 newUser.Email,
237
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
237 )
235
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
238 }
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
239
7d1f0ffdfa41 Implemented /users update controller.
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parents: 226
diff changeset
240 if err != nil {
186
fe3a88f00b0a Experimental user creation support.
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parents:
diff changeset
241 return
fe3a88f00b0a Experimental user creation support.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
242 }
fe3a88f00b0a Experimental user creation support.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
243
237
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
244 jr = JSONResult{
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
245 Code: http.StatusCreated,
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
246 Result: struct {
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
247 Result string `json:"result"`
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
248 }{
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
249 Result: "success",
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
250 },
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 235
diff changeset
251 }
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252 return
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253 }
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254
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255 func createUser(
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256 rw http.ResponseWriter, req *http.Request,
240
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257 input interface{}, db *sql.DB,
237
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258 ) (jr JSONResult, err error) {
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259
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260 user := input.(*User)
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261
237
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262 if user.Extent == nil {
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263 _, err = db.Exec(
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264 createUserSQL,
243
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265 user.Role,
237
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266 user.User,
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267 user.Password,
243
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268 user.Country,
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269 user.Email,
237
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270 )
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271 } else {
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272 _, err = db.Exec(
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273 createUserExtentSQL,
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274 user.Role,
237
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275 user.User,
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276 user.Password,
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277 user.Country,
237
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278 user.Extent.X1, user.Extent.Y1,
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279 user.Extent.X2, user.Extent.Y2,
243
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280 user.Email,
237
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281 )
186
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282 }
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283
187
51addc0533fe More complete show case for creating users.
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284 if err != nil {
237
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285 return
186
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286 }
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287
237
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288 jr = JSONResult{
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289 Code: http.StatusCreated,
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290 Result: struct {
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291 Result string `json:"result"`
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292 }{
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293 Result: "success",
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294 },
186
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295 }
237
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296 return
186
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297 }
250
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298
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299 func listUsers(
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300 rw http.ResponseWriter, req *http.Request,
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301 input interface{}, db *sql.DB,
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302 ) (jr JSONResult, err error) {
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303
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304 var rows *sql.Rows
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305
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306 rows, err = db.Query(listUsersSQL)
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307 if err != nil {
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308 return
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309 }
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310 defer rows.Close()
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311
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312 var users []*User
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313
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314 for rows.Next() {
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315 user := &User{Extent: &BoundingBox{}}
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316 if err = rows.Scan(
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317 &user.Role,
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318 &user.User,
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319 &user.Country,
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320 &user.Email,
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321 &user.Extent.X1, &user.Extent.Y1,
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322 &user.Extent.X2, &user.Extent.Y2,
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323 ); err != nil {
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324 return
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325 }
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326 users = append(users, user)
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327 }
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328
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329 jr = JSONResult{
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330 Result: struct {
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331 Users []*User `json:"users"`
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332 }{
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333 Users: users,
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334 },
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335 }
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336 return
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337 }