Mercurial > gemma

annotate pkg/controllers/system.go @ 854:83c271cb2344

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Reverted fcb38cedc680 (More tightened color model.) The get request did no longer work: HTTP/1.1 500 Internal Server Error Content-Type: text/plain; charset=utf-8 X-Content-Type-Options: nosniff Date: Fri, 28 Sep 2018 11:47:14 GMT Content-Length: 65 error: sql: Scan error on column index 3: Unexpected type string
author Sascha Wilde <wilde@intevation.de>
date Fri, 28 Sep 2018 13:54:57 +0200
parents fcb38cedc680
children a244b18cb916
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1 package controllers
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2
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3 import (
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4 "database/sql"
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5 "fmt"
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6 "io/ioutil"
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7 "net/http"
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8 "strings"
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9
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10 "gemma.intevation.de/gemma/pkg/models"
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11 "github.com/gorilla/mux"
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12 )
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13
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14 const (
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15 getFeatureColourSQL = `SELECT r,g,b,a
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16 FROM systemconf.feature_colours
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17 WHERE feature_name = $1 AND style_attr = $2`
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18 setFeatureColourSQL = `UPDATE systemconf.feature_colours
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19 SET (r, g, b, a) = ($3, $4, $5, $6)
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20 WHERE feature_name = $1 AND style_attr = $2`
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21 )
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22
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23 // System status end points
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24
722
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25 func showSystemLog(
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26 _ interface{}, req *http.Request,
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27 _ *sql.Conn,
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28 ) (jr JSONResult, err error) {
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29
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30 serviceName := mux.Vars(req)["service"]
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31 fileName := mux.Vars(req)["file"]
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32
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33 // The following check is currently most likely unnecessary as I wasn't
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34 // able to inject a verbatim '/' via the middleware, but better be on
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35 // the safe site...
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36 if strings.Contains(fileName, "/") {
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37 err = JSONError{http.StatusBadRequest,
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38 "error: no slashes allowed in file name"}
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39 return
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40 }
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41
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42 var path string
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43
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44 switch serviceName {
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45 case "apache2", "postgresql":
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46 path = "/var/log/" + serviceName + "/" + fileName
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47 default:
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48 err = JSONError{http.StatusBadRequest,
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49 "error: invalid service: " + serviceName}
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50 return
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51 }
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52
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53 var txt []byte
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54
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55 if txt, err = ioutil.ReadFile(path); err != nil {
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56 return
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57 }
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58
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59 jr = JSONResult{
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60 Result: struct {
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61 Path string `json:"path"`
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62 Content string `json:"content"`
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63 }{path, string(txt)},
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64 }
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65 return
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66 }
840
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67
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68 // Map/Feature style end points
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69
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70 func getFeatureStyle(
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71 _ interface{},
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72 req *http.Request,
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73 db *sql.Conn,
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74 ) (jr JSONResult, err error) {
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75
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76 feature := mux.Vars(req)["feature"]
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77 attr := mux.Vars(req)["attr"]
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78
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79 c := models.Colour{}
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80 err = db.QueryRowContext(
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81 req.Context(),
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82 getFeatureColourSQL,
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83 feature, attr,
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84 ).Scan(&c.R, &c.G, &c.B, &c.A)
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85
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86 switch {
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87 case err == sql.ErrNoRows:
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88 err = JSONError{
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89 Code: http.StatusNotFound,
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90 Message: "Requestes style not found.",
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91 }
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92 return
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93 case err != nil:
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94 return
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95 }
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96
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97 jr.Result = &struct {
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98 Colour models.Colour `json:"colour"`
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99 Code string `json:"code"`
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100 }{c, fmt.Sprintf("rgba(%d, %d, %d, %g)", c.R, c.G, c.B, c.A)}
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101 return
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102 }
846
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103
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104 func setFeatureStyle(
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105 input interface{},
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106 req *http.Request,
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107 db *sql.Conn,
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108 ) (jr JSONResult, err error) {
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109
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110 feature := mux.Vars(req)["feature"]
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111 attr := mux.Vars(req)["attr"]
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112
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113 c := input.(*models.Colour)
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114 if !c.IsValid() {
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115 err = JSONError{http.StatusBadRequest, "error: invalid colours"}
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116 return
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117 }
846
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118
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119 var res sql.Result
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120 res, err = db.ExecContext(
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121 req.Context(),
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122 setFeatureColourSQL,
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123 feature, attr,
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124 c.R, c.G, c.B, c.A)
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125
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126 if err != nil {
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127 return
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128 }
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129
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130 if n, err2 := res.RowsAffected(); err2 == nil && n == 0 {
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131 err = JSONError{
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132 Code: http.StatusNotFound,
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133 Message: "Requestes style not found.",
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134 }
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135 return
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136 }
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137
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138 jr = JSONResult{
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139 Code: http.StatusCreated,
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140 Result: struct {
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141 Result string `json:"result"`
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142 }{"success"},
6902032757e4 Added end point to set style (colour) information for feature.
Sascha Wilde <wilde@intevation.de>
parents: 840
diff changeset
143 }
6902032757e4 Added end point to set style (colour) information for feature.
Sascha Wilde <wilde@intevation.de>
parents: 840
diff changeset
144 return
6902032757e4 Added end point to set style (colour) information for feature.
Sascha Wilde <wilde@intevation.de>
parents: 840
diff changeset
145 }