Mercurial > gemma
annotate pkg/config/config.go @ 615:4ffdb922db44
Document adding of external OGC services.
author | Tom Gottfried <tom@intevation.de> |
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date | Mon, 10 Sep 2018 19:12:24 +0200 |
parents | 7e45aaec7081 |
children | da526b58c9c4 |
rev | line source |
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Fetch database connection string parts from configuration.
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1 package config |
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3 import ( |
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4 "crypto/sha256" |
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5 "fmt" |
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6 "log" |
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7 "sync" |
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8 |
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9 homedir "github.com/mitchellh/go-homedir" |
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10 "github.com/spf13/cobra" |
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11 "github.com/spf13/viper" |
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13 "gemma.intevation.de/gemma/pkg/common" |
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14 ) |
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16 // This is not part of the persistent config. |
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17 var configFile string |
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18 |
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19 func ConfigFile() string { return configFile } |
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21 func DBHost() string { return viper.GetString("db-host") } |
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22 func DBPort() uint { return uint(viper.GetInt32("db-port")) } |
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23 func DBName() string { return viper.GetString("db-name") } |
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24 func DBUser() string { return viper.GetString("db-user") } |
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25 func DBPassword() string { return viper.GetString("db-password") } |
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26 func DBSSLMode() string { return viper.GetString("db-ssl") } |
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28 func SessionStore() string { return viper.GetString("sessions") } |
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30 func Web() string { return viper.GetString("web") } |
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31 func WebHost() string { return viper.GetString("host") } |
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32 func WebPort() uint { return uint(viper.GetInt32("port")) } |
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34 func MailHost() string { return viper.GetString("mail-host") } |
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35 func MailPort() uint { return uint(viper.GetInt32("mail-port")) } |
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36 func MailUser() string { return viper.GetString("mail-user") } |
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37 func MailPassword() string { return viper.GetString("mail-password") } |
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38 func MailFrom() string { return viper.GetString("mail-from") } |
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39 func MailHelo() string { return viper.GetString("mail-helo") } |
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40 |
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41 func AllowedOrigins() []string { return viper.GetStringSlice("allowed-origins") } |
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42 |
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43 func Proxies(key string) map[string]interface{} { return viper.GetStringMap(key) } |
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45 func GeoServerURL() string { return viper.GetString("geoserver-url") } |
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46 func GeoServerUser() string { return viper.GetString("geoserver-user") } |
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47 func GeoServerPassword() string { return viper.GetString("geoserver-password") } |
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49 var ( |
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50 proxyKeyOnce sync.Once |
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51 proxyKey []byte |
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52 |
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53 proxyPrefixOnce sync.Once |
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54 proxyPrefix string |
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55 ) |
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56 |
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57 func ProxyKey() []byte { |
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58 fetchKey := func() { |
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59 if proxyKey == nil { |
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60 key := []byte(viper.GetString("proxy-key")) |
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61 if len(key) == 0 { |
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62 key = common.GenerateRandomKey(64) |
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63 } |
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64 hash := sha256.New() |
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65 hash.Write(key) |
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66 proxyKey = hash.Sum(nil) |
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67 } |
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68 } |
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69 proxyKeyOnce.Do(fetchKey) |
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70 return proxyKey |
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71 } |
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72 |
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73 func ProxyPrefix() string { |
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74 fetchPrefix := func() { |
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75 if proxyPrefix == "" { |
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76 proxyPrefix = fmt.Sprintf("http://%s:%d", WebHost(), WebPort()) |
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77 } |
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78 } |
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79 proxyPrefixOnce.Do(fetchPrefix) |
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80 return proxyPrefix |
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81 } |
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82 |
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83 var RootCmd = &cobra.Command{ |
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84 Use: "gemma", |
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85 Short: "gemma is a server for waterway monitoring and management", |
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86 } |
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87 |
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88 var allowedOrigins = []string{ |
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89 // TODO: Fill me! |
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90 } |
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91 |
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92 func init() { |
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93 cobra.OnInitialize(initConfig) |
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94 fl := RootCmd.PersistentFlags() |
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95 fl.StringVarP(&configFile, "config", "c", "", "config file (default is $HOME/.gemma.toml)") |
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96 |
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97 vbind := func(name string) { viper.BindPFlag(name, fl.Lookup(name)) } |
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98 |
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99 str := func(name, value, usage string) { |
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100 fl.String(name, value, usage) |
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101 vbind(name) |
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102 } |
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103 strP := func(name, shorthand, value, usage string) { |
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104 fl.StringP(name, shorthand, value, usage) |
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105 vbind(name) |
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106 } |
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107 ui := func(name string, value uint, usage string) { |
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108 fl.Uint(name, value, usage) |
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109 vbind(name) |
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110 } |
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111 uiP := func(name, shorthand string, value uint, usage string) { |
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112 fl.UintP(name, shorthand, value, usage) |
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113 vbind(name) |
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114 } |
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115 strSl := func(name string, value []string, usage string) { |
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116 fl.StringSlice(name, value, usage) |
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117 vbind(name) |
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118 } |
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119 |
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120 strP("db-host", "H", "localhost", "host of the database") |
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121 uiP("db-port", "P", 5432, "port of the database") |
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122 strP("db-name", "d", "gemma", "name of the database") |
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123 str("db-user", "meta_login", "Metamorphic database user") |
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124 str("db-password", "", "Metamorphic database user password") |
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125 strP("db-ssl", "S", "prefer", "SSL mode of the database") |
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126 |
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127 strP("sessions", "s", "", "path to the sessions file") |
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128 |
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129 strP("web", "w", "./web", "path to the web files") |
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130 strP("host", "o", "localhost", "host of the web app") |
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131 uiP("port", "p", 8000, "port of the web app") |
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132 |
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133 str("mail-host", "localhost", "server to send mail with") |
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134 ui("mail-port", 465, "port of server to send mail with") |
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135 str("mail-user", "gemma", "user to authenticate against mail-host.\n"+ |
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136 "Leave empty for trying to send without auth.") |
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137 str("mail-password", "", "password of user to send mail with") |
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138 str("mail-from", "noreply@localhost", "from line of mails") |
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139 str("mail-helo", "localhost", "name of server to send mail from.") |
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140 |
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141 strSl("allowed-origins", allowedOrigins, "allow access for remote origins") |
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142 |
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143 str("geoserver-url", "http://localhost:8080/geoserver", "URL to GeoServer") |
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144 str("geoserver-user", "admin", "GeoServer user") |
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145 str("geoserver-password", "geoserver", "GeoServer password") |
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146 |
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147 str("proxy-key", "", `signing key for proxy URLs. Defaults to random key.`) |
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148 str("proxy-prefix", "", `URL prefix of proxy. Defaults to "http://${web-host}:${web-port}"`) |
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149 |
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150 } |
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151 |
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152 func initConfig() { |
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153 // Don't forget to read config either from cfgFile or from home directory! |
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154 if configFile != "" { |
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155 // Use config file from the flag. |
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156 viper.SetConfigFile(configFile) |
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157 } else { |
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158 // Find home directory. |
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159 home, err := homedir.Dir() |
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160 if err != nil { |
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161 log.Fatalf("error: %v\n", err) |
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162 } |
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163 |
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164 // Search config in home directory with name ".cobra" (without extension). |
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165 viper.AddConfigPath(home) |
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166 viper.SetConfigName(".gemma") |
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167 } |
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168 if err := viper.ReadInConfig(); err != nil { |
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169 if _, ok := err.(viper.ConfigFileNotFoundError); ok && configFile == "" { |
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170 // Don't bother if not found. |
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171 return |
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172 } |
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173 log.Fatalf("Can't read config: %v\n", err) |
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174 } |
28
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175 } |