annotate pkg/controllers/srimports.go @ 3302:ec6163c6687d

'Historicise' gauges on import Gauge data sets will be updated or a new version will be inserted depending on temporal validity and a timestamp marking the last update in the RIS-Index of a data set. The trigger on date_info is removed because the value is actually an attribut coming from the RIS-Index. Gauge measurements and predictions are associated to the version with matching temporal validity. Bottlenecks are always associated to the actual version of the gauge, although this might change as soon as bottlenecks are 'historicised', too.
author Tom Gottfried <tom@intevation.de>
date Thu, 16 May 2019 18:41:43 +0200
parents 5222bfe5b4af
children 479da494bc09
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rev   line source
1017
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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
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14 package controllers
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15
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16 import (
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17 "archive/zip"
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18 "database/sql"
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19 "encoding/hex"
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20 "fmt"
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21 "log"
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22 "net/http"
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23 "os"
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24 "path/filepath"
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25 "strconv"
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26 "sync"
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27 "time"
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28
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29 "github.com/gorilla/mux"
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30
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31 "gemma.intevation.de/gemma/pkg/auth"
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32 "gemma.intevation.de/gemma/pkg/common"
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33 "gemma.intevation.de/gemma/pkg/config"
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34 "gemma.intevation.de/gemma/pkg/imports"
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35 "gemma.intevation.de/gemma/pkg/misc"
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36 "gemma.intevation.de/gemma/pkg/models"
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37 )
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38
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39 const (
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40 soundingResultName = "soundingresult"
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41 maxSoundingResultSize = 25 * 1024 * 1024
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42 )
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43
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44 func fetchSoundingResult(req *http.Request) (string, error) {
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45
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46 // Check first if we have a token.
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47 if token := req.FormValue("token"); token != "" {
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48 if _, err := hex.DecodeString(token); err != nil {
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49 return "", err
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50 }
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51 dir := config.TmpDir()
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52 if dir == "" {
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53 dir = os.TempDir()
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54 }
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55 // XXX: This should hopefully be race-free enough.
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56 now := time.Now().Format("2006-15-04-05")
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57 dst := filepath.Join(dir, soundingResultName+"-"+token+"-"+now)
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58 if err := misc.UnmakeTempFile(token, dst); err != nil {
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59 return "", err
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60 }
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61 return dst, nil
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62 }
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63
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64 return misc.StoreUploadedFile(
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65 req,
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66 soundingResultName,
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67 "sr.zip",
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68 maxSoundingResultSize,
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69 )
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70 }
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71
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72 func fetchSoundingResultMetaOverrides(sr *imports.SoundingResult, req *http.Request) error {
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73
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74 if v := req.FormValue("epsg"); v != "" {
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75 epsg, err := strconv.ParseUint(v, 10, 32)
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76 if err != nil {
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77 return err
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78 }
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79 srid := uint(epsg)
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80 sr.EPSG = &srid
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81 }
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82
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83 if v := req.FormValue("date"); v != "" {
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84 date, err := time.Parse(common.DateFormat, v)
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85 if err != nil {
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86 return err
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87 }
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88 sr.Date = &models.Date{Time: date}
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89 }
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90
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91 if v := req.FormValue("depth-reference"); v != "" {
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92 sr.DepthReference = &v
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93 }
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94
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95 if v := req.FormValue("bottleneck"); v != "" {
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96 sr.Bottleneck = &v
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97 }
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98
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99 return nil
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100 }
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101
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102 func importSoundingResult(rw http.ResponseWriter, req *http.Request) {
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103
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104 sr := new(imports.SoundingResult)
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105
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106 if err := fetchSoundingResultMetaOverrides(sr, req); err != nil {
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107 log.Printf("error: %v\n", err)
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108 http.Error(rw, "error: "+err.Error(), http.StatusBadRequest)
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109 return
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110 }
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111
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112 dir, err := fetchSoundingResult(req)
978
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113 if err != nil {
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114 log.Printf("error: %v\n", err)
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115 http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError)
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116 return
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117 }
1239
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118 sr.Dir = dir
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119
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120 serialized, err := common.ToJSONString(sr)
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121 if err != nil {
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122 log.Printf("error: %v\n", err)
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123 http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError)
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124 return
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125 }
978
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126
979
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127 session, _ := auth.GetSession(req)
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128
2995
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129 sendEmail := req.FormValue("send-email") != ""
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130
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131 jobID, err := imports.AddJob(
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132 imports.SRJobKind,
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133 time.Time{}, // due
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134 nil, // trys
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135 nil, // retry wait
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136 session.User,
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137 sendEmail,
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diff changeset
138 serialized)
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139
998
75e65599ea52 Persist job queue in database. WIP.
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140 if err != nil {
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141 log.Printf("error: %v\n", err)
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142 http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError)
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diff changeset
143 return
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144 }
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145
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8f23ec811afb Fixed and harmonized wording in importer queue a bit.
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parents: 998
diff changeset
146 log.Printf("info: added import #%d to queue\n", jobID)
979
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diff changeset
147
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diff changeset
148 result := struct {
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diff changeset
149 ID int64 `json:"id"`
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diff changeset
150 }{
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diff changeset
151 ID: jobID,
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diff changeset
152 }
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diff changeset
153 SendJSON(rw, http.StatusCreated, &result)
978
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154 }
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155
1226
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diff changeset
156 func loadMeta(f *zip.File) (*models.SoundingResultMeta, error) {
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diff changeset
157 r, err := f.Open()
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158 if err != nil {
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diff changeset
159 return nil, err
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160 }
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diff changeset
161 defer r.Close()
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162 var m models.SoundingResultMeta
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163 return &m, m.Decode(r)
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164 }
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165
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diff changeset
166 func uploadSoundingResult(
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167 _ interface{},
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diff changeset
168 req *http.Request,
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169 conn *sql.Conn,
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170 ) (jr JSONResult, err error) {
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171
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172 var dir string
2194
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diff changeset
173 if dir, err = misc.StoreUploadedFile(
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diff changeset
174 req,
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diff changeset
175 soundingResultName,
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diff changeset
176 "sr.zip",
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diff changeset
177 maxSoundingResultSize,
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diff changeset
178 ); err != nil {
1224
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diff changeset
179 return
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diff changeset
180 }
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181
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diff changeset
182 srFile := filepath.Join(dir, "sr.zip")
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diff changeset
183
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diff changeset
184 var zr *zip.ReadCloser
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diff changeset
185 if zr, err = zip.OpenReader(srFile); err != nil {
4d7c44f7044e Factored out som zip lookup code to be reusable in sounding result upload controller.
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parents: 1224
diff changeset
186 return
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diff changeset
187 }
1226
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diff changeset
188 var once sync.Once
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diff changeset
189 closeOnce := func() { zr.Close() }
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diff changeset
190 defer once.Do(closeOnce)
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diff changeset
191
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diff changeset
192 var messages []string
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diff changeset
193
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diff changeset
194 var result struct {
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737e1acea1f1 If there are no XYZ files in the ZIP we cant help the user.
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diff changeset
195 Token string `json:"token,omitempty"`
1226
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diff changeset
196 Meta interface{} `json:"meta,omitempty"`
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diff changeset
197 Messages []string `json:"messages,omitempty"`
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diff changeset
198 }
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diff changeset
199
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diff changeset
200 find := func(ext string) *zip.File { return common.FindInZIP(zr, ext) }
5874cedd7f91 Sounding result import: Accept *.txt files for XYZ data, too.
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parents: 1328
diff changeset
201
5874cedd7f91 Sounding result import: Accept *.txt files for XYZ data, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1328
diff changeset
202 noXYZ := find(".xyz") == nil && find(".txt") == nil
5874cedd7f91 Sounding result import: Accept *.txt files for XYZ data, too.
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parents: 1328
diff changeset
203 if noXYZ {
5874cedd7f91 Sounding result import: Accept *.txt files for XYZ data, too.
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parents: 1328
diff changeset
204 messages = append(messages, "no .xyz or .txt file found.")
1226
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diff changeset
205 }
1225
4d7c44f7044e Factored out som zip lookup code to be reusable in sounding result upload controller.
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parents: 1224
diff changeset
206
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parents: 1328
diff changeset
207 if mj := find("meta.json"); mj == nil {
1226
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parents: 1225
diff changeset
208 messages = append(messages, "no 'meta.json' file found.")
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parents: 1225
diff changeset
209 } else {
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parents: 1225
diff changeset
210 if meta, err := loadMeta(mj); err != nil {
2e65e8ddacab Finished the sounding result upload controller to temp uploads.
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parents: 1225
diff changeset
211 messages = append(messages,
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parents: 1225
diff changeset
212 fmt.Sprintf("'meta.json' found but invalid: %v", err))
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parents: 1225
diff changeset
213 } else {
1328
d753ce6cf588 To make golint happier made context.Context to be the first argument in all calls.
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parents: 1321
diff changeset
214 errs := meta.Validate(req.Context(), conn)
1226
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diff changeset
215 for _, err := range errs {
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parents: 1225
diff changeset
216 messages = append(messages,
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parents: 1225
diff changeset
217 fmt.Sprintf("invalid 'meta.json': %v", err))
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parents: 1225
diff changeset
218 }
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parents: 1225
diff changeset
219 result.Meta = meta
2e65e8ddacab Finished the sounding result upload controller to temp uploads.
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parents: 1225
diff changeset
220 }
2e65e8ddacab Finished the sounding result upload controller to temp uploads.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1225
diff changeset
221 }
2e65e8ddacab Finished the sounding result upload controller to temp uploads.
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parents: 1225
diff changeset
222 once.Do(closeOnce)
1224
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diff changeset
223
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parents: 1226
diff changeset
224 code := http.StatusCreated
737e1acea1f1 If there are no XYZ files in the ZIP we cant help the user.
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diff changeset
225
737e1acea1f1 If there are no XYZ files in the ZIP we cant help the user.
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parents: 1226
diff changeset
226 // If there are no XYZ data we cant help the user anyway.
737e1acea1f1 If there are no XYZ files in the ZIP we cant help the user.
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parents: 1226
diff changeset
227 if noXYZ {
1228
17131f0f9fcb Added endpoint to explicitly delete a temp upload.
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parents: 1227
diff changeset
228 code = http.StatusBadRequest
1227
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parents: 1226
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229 if err2 := os.RemoveAll(dir); err2 != nil {
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230 log.Printf("error: %v\n", err2)
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231 }
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232 } else if result.Token, err = misc.MakeTempFile(dir); err != nil {
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233 if err2 := os.RemoveAll(dir); err2 != nil {
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234 log.Printf("error: %v\n", err2)
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235 }
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236 return
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237 }
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238
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239 result.Messages = messages
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240
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241 jr = JSONResult{
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242 Code: code,
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243 Result: &result,
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244 }
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245 return
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246 }
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247
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248 func deleteSoundingUpload(rw http.ResponseWriter, req *http.Request) {
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249 token := mux.Vars(req)["token"]
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250 if _, err := hex.DecodeString(token); err != nil {
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251 http.Error(rw, "Invalid token", http.StatusBadRequest)
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252 return
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253 }
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254 if err := misc.DeleteTempFile(token); err != nil {
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255 http.Error(rw, fmt.Sprintf("error: %v", err), http.StatusInternalServerError)
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256 return
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257 }
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258 result := struct {
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259 Message string `json:"message"`
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260 }{
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261 Message: fmt.Sprintf("Token %s deleted.", token),
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262 }
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263 SendJSON(rw, http.StatusOK, &result)
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264 }