Mercurial > gemma
annotate pkg/models/extservices.go @ 5457:fb3e127bccb4 uiimprovements
fixed linting errors
author | Thomas Junk <thomas.junk@intevation.de> |
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date | Thu, 15 Jul 2021 10:11:49 +0200 |
parents | cabf4789e02b |
children | 5f47eeea988d |
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 |
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14 package models |
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15 |
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16 import ( |
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17 "context" |
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18 "database/sql" |
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19 "log" |
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20 "sort" |
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21 "sync" |
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22 |
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23 "gemma.intevation.de/gemma/pkg/auth" |
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24 ) |
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25 |
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26 type ExtEntry struct { |
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27 Name string `json:"name"` |
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28 URL string `json:"url"` |
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29 WFS bool `json:"wfs"` |
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30 } |
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31 |
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32 type ExtServices struct { |
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33 mu sync.Mutex |
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34 entries []ExtEntry |
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35 } |
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36 |
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37 var ExternalServices = &ExtServices{} |
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38 |
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39 const selectExternalServices = `SELECT local_name, remote_url, is_wfs |
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40 FROM sys_admin.external_services ORDER BY local_name` |
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41 |
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42 func (es *ExtServices) Find(name string) (string, bool) { |
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43 es.mu.Lock() |
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44 defer es.mu.Unlock() |
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45 |
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46 if es.entries == nil { |
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47 if err := es.load(); err != nil { |
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48 log.Printf("error: %v\n", err) |
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49 return "", false |
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50 } |
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51 } |
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52 n := sort.Search(len(es.entries), func(i int) bool { |
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53 return es.entries[i].Name >= name |
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54 }) |
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55 if n == len(es.entries) || es.entries[n].Name != name { |
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56 return "", false |
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57 } |
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58 return es.entries[n].URL, true |
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59 } |
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60 |
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61 func (es *ExtServices) load() error { |
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62 // make empty slice to prevent retry if slice is empty. |
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63 es.entries = []ExtEntry{} |
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64 return auth.RunAs(context.Background(), "sys_admin", |
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65 func(conn *sql.Conn) error { |
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66 rows, err := conn.QueryContext( |
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67 context.Background(), selectExternalServices) |
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68 if err != nil { |
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69 return err |
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70 } |
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71 defer rows.Close() |
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72 for rows.Next() { |
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73 var entry ExtEntry |
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74 if err := rows.Scan( |
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75 &entry.Name, |
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76 &entry.URL, |
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77 &entry.WFS, |
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78 ); err != nil { |
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79 return err |
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80 } |
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81 es.entries = append(es.entries, entry) |
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82 } |
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83 return rows.Err() |
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84 }) |
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85 } |
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86 |
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87 func (es *ExtServices) Invalidate() { |
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88 es.mu.Lock() |
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89 es.entries = nil |
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90 es.mu.Unlock() |
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91 } |
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92 |
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93 func ExternalAll(ExtEntry) bool { return true } |
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94 func ExternalWMS(entry ExtEntry) bool { return !entry.WFS } |
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95 func ExternalWFS(entry ExtEntry) bool { return entry.WFS } |
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96 |
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97 func (es *ExtServices) Filter(accept func(ExtEntry) bool) []ExtEntry { |
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98 es.mu.Lock() |
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99 defer es.mu.Unlock() |
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100 if es.entries == nil { |
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101 if err := es.load(); err != nil { |
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102 log.Printf("error: %v\n", err) |
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103 return nil |
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104 } |
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105 } |
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106 ee := make([]ExtEntry, 0, len(es.entries)) |
659c04feb2dc
Made use of sorted slice in external proxied services symmetric to published services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
442
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107 for _, e := range es.entries { |
659c04feb2dc
Made use of sorted slice in external proxied services symmetric to published services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
442
diff
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108 if accept(e) { |
659c04feb2dc
Made use of sorted slice in external proxied services symmetric to published services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
442
diff
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109 ee = append(ee, e) |
659c04feb2dc
Made use of sorted slice in external proxied services symmetric to published services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
442
diff
changeset
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110 } |
659c04feb2dc
Made use of sorted slice in external proxied services symmetric to published services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
442
diff
changeset
|
111 } |
659c04feb2dc
Made use of sorted slice in external proxied services symmetric to published services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
442
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changeset
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112 return ee |
659c04feb2dc
Made use of sorted slice in external proxied services symmetric to published services.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
442
diff
changeset
|
113 } |