Mercurial > gemma

annotate pkg/controllers/report.go @ 5490:5f47eeea988d logging

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Use own logging package.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 20 Sep 2021 17:45:39 +0200
parents 699048c86848
children bbc257dd9abf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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) 2021 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
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14 package controllers
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15
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16 import (
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17 "database/sql"
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18 "fmt"
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19 "net/http"
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20 "os"
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21 "path/filepath"
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22 "sort"
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23 "strings"
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24
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25 "gemma.intevation.de/gemma/pkg/config"
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26 "gemma.intevation.de/gemma/pkg/middleware"
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27 "gemma.intevation.de/gemma/pkg/xlsx"
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28
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29 "gemma.intevation.de/gemma/pkg/log"
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30 mw "gemma.intevation.de/gemma/pkg/middleware"
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31
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32 "github.com/gorilla/mux"
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33 "github.com/xuri/excelize/v2"
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34 )
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35
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36 func listReports(req *http.Request) (jr mw.JSONResult, err error) {
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37 path := config.ReportPath()
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38 if path == "" {
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39 err = mw.JSONError{
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40 Code: http.StatusNotFound,
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41 Message: http.StatusText(http.StatusNotFound),
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42 }
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43 return
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44 }
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45
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46 // This would be easier with Go 1.16+.
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47
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48 dir, err := os.Open(path)
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49 if err != nil {
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50 log.Errorf("%v\n", err)
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51 err = mw.JSONError{
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52 Code: http.StatusInternalServerError,
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53 Message: "Listing report templates failed.",
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54 }
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55 return
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56 }
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57 defer dir.Close()
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58 files, err := dir.Readdirnames(-1)
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59 if err != nil {
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60 log.Errorf("%v\n", err)
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61 err = mw.JSONError{
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62 Code: http.StatusInternalServerError,
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63 Message: "Listing report templates failed.",
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64 }
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65 return
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66 }
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67
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68 pairs := map[string]int{}
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69
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70 all:
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71 for _, file := range files {
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72 var mask int
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73 switch {
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74 case strings.HasSuffix(file, ".xlsx"):
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75 mask = 1
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76 case strings.HasSuffix(file, ".yaml"):
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77 mask = 2
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78 default:
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79 continue all
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80 }
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81 basename := filepath.Base(file)
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82 name := strings.TrimSuffix(basename, filepath.Ext(basename))
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83 pairs[name] |= mask
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84 }
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85
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86 var reports []string
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87 for name, mask := range pairs {
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88 if mask == 3 {
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89 reports = append(reports, name)
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90 }
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91 }
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92 sort.Strings(reports)
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93
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94 out := struct {
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95 Reports []string `json:"reports"`
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96 }{
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97 Reports: reports,
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98 }
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99 jr = mw.JSONResult{Result: out}
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100 return
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101 }
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102
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103 func report(rw http.ResponseWriter, req *http.Request) {
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104
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105 path := config.ReportPath()
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106 if path == "" {
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107 http.NotFound(rw, req)
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108 return
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109 }
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110
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111 if stat, err := os.Stat(path); err != nil {
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112 if os.IsNotExist(err) {
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113 log.Errorf("report dir '%s' does not exists.\n", path)
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114 http.NotFound(rw, req)
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115 } else {
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116 log.Errorf("%v\n", err)
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117 http.Error(rw, "Error: "+err.Error(), http.StatusInternalServerError)
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118 }
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119 return
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120 } else if !stat.Mode().IsDir() {
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121 log.Errorf("report dir '%s' is not a directory.\n", path)
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122 http.NotFound(rw, req)
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123 return
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124 }
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125
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126 vars := mux.Vars(req)
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127 name := vars["name"]
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128
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129 xlsxFilename := filepath.Join(path, name+".xlsx")
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130 yamlFilename := filepath.Join(path, name+".yaml")
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131
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132 for _, check := range []string{xlsxFilename, yamlFilename} {
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133 if _, err := os.Stat(check); err != nil {
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134 if os.IsNotExist(err) {
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135 http.NotFound(rw, req)
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136 } else {
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137 log.Errorf("%v\n", err)
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138 http.Error(rw, "Error: "+err.Error(), http.StatusInternalServerError)
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139 }
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140 return
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141 }
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142 }
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143
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144 template, err := excelize.OpenFile(xlsxFilename)
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145 if err != nil {
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146 log.Errorf("%v\n", err)
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147 http.Error(rw, "Error: "+err.Error(), http.StatusInternalServerError)
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148 return
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149 }
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150
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151 action, err := xlsx.ActionFromFile(yamlFilename)
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152 if err != nil {
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153 http.Error(rw, "Error: "+err.Error(), http.StatusInternalServerError)
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154 log.Errorf("%v\n", err)
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155 return
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156 }
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157
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158 ctx := req.Context()
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159 conn := middleware.GetDBConn(req)
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160
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161 tx, err := conn.BeginTx(ctx, &sql.TxOptions{ReadOnly: true})
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162 defer tx.Rollback()
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163
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164 if err := action.Execute(ctx, tx, template); err != nil {
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165 log.Errorf("%v\n", err)
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166 http.Error(rw, "Error: "+err.Error(), http.StatusInternalServerError)
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167 return
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168 }
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169 rw.Header().Set(
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170 "Content-Disposition",
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171 fmt.Sprintf("attachment; filename=%s.xlsx", name))
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172 rw.Header().Set(
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173 "Content-Type",
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174 "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
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175
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176 if _, err := template.WriteTo(rw); err != nil {
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177 log.Errorf("%v\n", err)
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178 }
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179 }