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annotate pkg/controllers/wpimports.go @ 2073:e6dccc7a3ea1

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Waterway profiles import: Added upload route.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 30 Jan 2019 17:23:22 +0100
parents
children dacf79a0658e
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2073
e6dccc7a3ea1 Waterway profiles import: Added upload route.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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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 "bufio"
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18 "io"
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19 "io/ioutil"
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20 "log"
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21 "net/http"
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22 "os"
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23 "path/filepath"
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24 "time"
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25
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26 "gemma.intevation.de/gemma/pkg/auth"
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27 "gemma.intevation.de/gemma/pkg/common"
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28 "gemma.intevation.de/gemma/pkg/config"
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29 "gemma.intevation.de/gemma/pkg/imports"
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30 )
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31
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32 const (
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33 maxWaterwayProfilesSize = 25 * 1024 * 1024
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34 waterwayProfilesName = "wp"
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35 )
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36
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37 func storeWaterwayProfiles(req *http.Request) (string, error) {
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38
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39 // Check for direct upload.
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40 f, _, err := req.FormFile(waterwayProfilesName)
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41 if err != nil {
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42 return "", err
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43 }
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44 defer f.Close()
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45
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46 dir, err := ioutil.TempDir(config.TmpDir(), waterwayProfilesName)
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47 if err != nil {
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48 return "", err
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49 }
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50
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51 o, err := os.Create(filepath.Join(dir, "wp.csv"))
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52 if err != nil {
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53 os.RemoveAll(dir)
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54 return "", err
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55 }
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56
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57 out := bufio.NewWriter(o)
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58
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59 if _, err = io.Copy(out, io.LimitReader(f, maxWaterwayProfilesSize)); err != nil {
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60 o.Close()
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61 os.RemoveAll(dir)
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62 return "", err
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63 }
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64
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65 if err = out.Flush(); err != nil {
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66 o.Close()
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67 os.RemoveAll(dir)
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68 return "", err
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69 }
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70
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71 return dir, nil
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72 }
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73 func importWaterwayProfiles(rw http.ResponseWriter, req *http.Request) {
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74
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75 dir, err := storeWaterwayProfiles(req)
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76 if err != nil {
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77 log.Printf("error: %v\n", err)
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78 http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError)
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79 return
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80 }
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81
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82 wp := &imports.WaterwayProfiles{Dir: dir}
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83
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84 serialized, err := common.ToJSONString(wp)
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85 if err != nil {
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86 log.Printf("error: %v\n", err)
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87 http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError)
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88 return
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89 }
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90
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91 session, _ := auth.GetSession(req)
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92
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93 sendEmail := req.FormValue("email") != ""
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94
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95 jobID, err := imports.AddJob(
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96 imports.AGMJobKind,
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97 time.Time{}, // due
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98 nil, // trys
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99 nil, // wait retry
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100 session.User,
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101 sendEmail,
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102 serialized)
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103
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104 if err != nil {
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105 log.Printf("error: %v\n", err)
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106 http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError)
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107 return
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108 }
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109
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110 log.Printf("info: added import #%d to queue\n", jobID)
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111
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112 result := struct {
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113 ID int64 `json:"id"`
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114 }{
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115 ID: jobID,
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116 }
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117 SendJSON(rw, http.StatusCreated, &result)
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118 }