Mercurial > gemma
annotate pkg/models/intservices.go @ 2006:35acb7f9ae0c
Do anything else before expectedly failing role creation
Creating roles during database setup expectedly fails in case there
already is another gemma database in the cluster. Doing it at the end
of the transaction ensures it does not hide errors in other commands
in the script.
In passing, add the default admin via the designated view to ensure it
will become a correctly set up application user.
author | Tom Gottfried <tom@intevation.de> |
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date | Thu, 24 Jan 2019 17:23:43 +0100 |
parents | cabf4789e02b |
children | dfe9cde6a20c |
rev | line source |
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1 // This is Free Software under GNU Affero General Public License v >= 3.0 |
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2 // without warranty, see README.md and license for details. |
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3 // |
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4 // SPDX-License-Identifier: AGPL-3.0-or-later |
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5 // License-Filename: LICENSES/AGPL-3.0.txt |
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6 // |
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7 // Copyright (C) 2018 by via donau |
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH |
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9 // Software engineering by Intevation GmbH |
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10 // |
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11 // Author(s): |
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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13 // * Tom Gottfried <tom.gottfried@intevation.de> |
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14 |
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15 package models |
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16 |
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17 import ( |
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18 "context" |
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19 "database/sql" |
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20 "log" |
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21 "net/http" |
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22 "sync" |
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23 |
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24 "gemma.intevation.de/gemma/pkg/auth" |
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25 "gemma.intevation.de/gemma/pkg/config" |
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26 ) |
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27 |
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28 type IntEntry struct { |
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29 Name string `json:"name"` |
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30 Style bool `json:"style"` |
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31 WMS bool `json:"wms"` |
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32 WFS bool `json:"wfs"` |
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33 } |
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34 |
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35 type IntServices struct { |
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36 entries []IntEntry |
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37 mu sync.Mutex |
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38 } |
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39 |
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40 const ( |
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41 selectServicesSQL = ` |
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42 SELECT relname, style IS NOT NULL, as_wms, as_wfs |
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43 FROM sys_admin.published_services |
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44 JOIN pg_class ON name = oid ORDER by relname` |
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45 |
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46 selectStyleSQL = ` |
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47 SELECT XMLSERIALIZE(DOCUMENT style AS text) |
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48 FROM sys_admin.published_services |
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49 JOIN pg_class ON name = oid |
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50 WHERE relname = $1` |
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51 |
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52 updateStyleSQL = ` |
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53 UPDATE sys_admin.published_services |
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54 SET style = XMLPARSE(DOCUMENT $1) |
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55 WHERE name IN (SELECT oid FROM pg_class WHERE relname = $2)` |
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56 ) |
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57 |
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58 var InternalServices = &IntServices{} |
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59 |
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60 func (e *IntEntry) LoadStyle() (string, error) { |
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61 var style string |
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62 ctx := context.Background() |
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63 err := auth.RunAs(ctx, "sys_admin", |
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64 func(conn *sql.Conn) error { |
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65 return conn.QueryRowContext( |
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66 ctx, |
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67 selectStyleSQL, |
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68 e.Name).Scan(&style) |
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69 }) |
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70 return style, err |
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71 } |
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72 |
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73 func UpdateInternalStyle(req *http.Request, name, style string) error { |
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74 return auth.RunAsSessionUser(req, func(conn *sql.Conn) error { |
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75 _, err := conn.ExecContext( |
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76 req.Context(), updateStyleSQL, |
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77 style, name) |
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78 if err == nil { |
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79 InternalServices.Invalidate() |
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80 } |
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81 return err |
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82 }) |
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83 } |
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84 |
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85 func (ps *IntServices) Find(name string) (string, bool) { |
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86 ps.mu.Lock() |
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87 defer ps.mu.Unlock() |
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88 |
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89 if ps.entries == nil { |
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90 if err := ps.load(); err != nil { |
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91 log.Printf("error: %v\n", err) |
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92 return "", false |
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93 } |
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94 } |
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95 |
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96 if ps.has(name) { |
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97 return config.GeoServerURL() + "/" + name, true |
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98 } |
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99 return "", false |
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100 } |
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101 |
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102 func (ps *IntServices) has(service string) bool { |
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103 var check func(*IntEntry) bool |
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104 switch service { |
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105 case "wms": |
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106 check = func(e *IntEntry) bool { return e.WMS } |
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107 case "wfs": |
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108 check = func(e *IntEntry) bool { return e.WFS } |
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109 default: |
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110 return false |
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111 } |
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112 for i := range ps.entries { |
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113 if check(&ps.entries[i]) { |
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114 return true |
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115 } |
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116 } |
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117 return false |
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118 } |
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119 |
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120 func (ps *IntServices) load() error { |
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121 // make empty slice to prevent retry if slice is empty. |
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122 ps.entries = []IntEntry{} |
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123 ctx := context.Background() |
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124 return auth.RunAs(ctx, "sys_admin", |
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125 func(conn *sql.Conn) error { |
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126 rows, err := conn.QueryContext( |
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127 ctx, selectServicesSQL) |
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128 if err != nil { |
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129 return err |
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130 } |
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131 defer rows.Close() |
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132 for rows.Next() { |
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133 var entry IntEntry |
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134 if err := rows.Scan( |
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135 &entry.Name, &entry.Style, |
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136 &entry.WMS, &entry.WFS, |
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137 ); err != nil { |
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138 return err |
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139 } |
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140 ps.entries = append(ps.entries, entry) |
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141 } |
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142 return rows.Err() |
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143 }) |
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144 } |
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145 |
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146 func (ps *IntServices) Invalidate() { |
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147 ps.mu.Lock() |
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148 ps.entries = nil |
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149 ps.mu.Unlock() |
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150 } |
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151 |
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152 func InternalAll(IntEntry) bool { return true } |
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153 func IntWMS(entry IntEntry) bool { return entry.WMS } |
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154 func IntWFS(entry IntEntry) bool { return entry.WFS } |
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155 func IntWithStyle(entry IntEntry) bool { return entry.Style } |
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156 |
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157 func IntByName(name string) func(IntEntry) bool { |
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158 return func(entry IntEntry) bool { return entry.Name == name } |
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159 } |
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160 |
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161 func IntAnd(accept ...func(IntEntry) bool) func(IntEntry) bool { |
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162 return func(entry IntEntry) bool { |
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163 for _, a := range accept { |
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164 if !a(entry) { |
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165 return false |
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166 } |
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167 } |
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168 return true |
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169 } |
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170 } |
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171 |
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172 func (ps *IntServices) Filter(accept func(IntEntry) bool) []IntEntry { |
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173 ps.mu.Lock() |
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174 defer ps.mu.Unlock() |
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175 if ps.entries == nil { |
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176 if err := ps.load(); err != nil { |
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177 log.Printf("error: %v\n", err) |
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178 return nil |
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179 } |
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180 } |
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181 pe := make([]IntEntry, 0, len(ps.entries)) |
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182 for _, e := range ps.entries { |
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183 if accept(e) { |
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184 pe = append(pe, e) |
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185 } |
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186 } |
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187 |
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188 return pe |
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189 } |