Mercurial > gemma

annotate pkg/config/config.go @ 5490:5f47eeea988d logging

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Use own logging package.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Mon, 20 Sep 2021 17:45:39 +0200
parents 0919946f624b
children 1222b777f51f
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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, 2019 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 // * Bernhard E. Reiter <bernhard.reiter@intevation.de>
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14
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714787accd26 Fetch database connection string parts from configuration.
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15 package config
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17 import (
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18 "crypto/sha256"
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19 "fmt"
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20 lg "log"
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21 "sync"
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22 "time"
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23
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24 homedir "github.com/mitchellh/go-homedir"
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26 "github.com/spf13/cobra"
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27 "github.com/spf13/viper"
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29 "gemma.intevation.de/gemma/pkg/common"
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30 "gemma.intevation.de/gemma/pkg/log"
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31 )
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32
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33 // This is not part of the persistent config.
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34 var configFile string
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35
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36 // DBHost is the hostname of the database.
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37 func DBHost() string { return viper.GetString("db-host") }
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39 // DBPort is the port of the database.
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40 func DBPort() uint { return uint(viper.GetInt32("db-port")) }
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42 // DBName is the name of the database.
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43 func DBName() string { return viper.GetString("db-name") }
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45 // DBUser is the name of the user to connect to the database.
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46 func DBUser() string { return viper.GetString("db-user") }
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48 // DBPassword is the password to connect to the database.
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49 func DBPassword() string { return viper.GetString("db-password") }
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51 // DBSSLMode selects the SSL mode to encrypt the connection to the database.
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52 func DBSSLMode() string { return viper.GetString("db-ssl") }
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54 // SessionStore is the path to the session store.
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55 // If empty the session store is kept in memory only.
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56 func SessionStore() string { return viper.GetString("sessions") }
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58 // Web is the root folder of the served web content.
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59 func Web() string { return viper.GetString("web") }
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61 // WebHost is the host to bind the web server to.
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62 func WebHost() string { return viper.GetString("host") }
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64 // WebPort is the port to bind the web server to.
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65 func WebPort() uint { return uint(viper.GetInt32("port")) }
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67 // MailHost is the server of the SMTP server.
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68 func MailHost() string { return viper.GetString("mail-host") }
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70 // MailPort is the port of the SMTP server.
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71 func MailPort() uint { return uint(viper.GetInt32("mail-port")) }
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73 // MailUser is the user to connect to the SMTP server.
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74 func MailUser() string { return viper.GetString("mail-user") }
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76 // MailPassword is the password of the user to connect to the SMTP server.
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77 func MailPassword() string { return viper.GetString("mail-password") }
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79 // MailFrom is the sender in the 'from' header in mails send.
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80 func MailFrom() string { return viper.GetString("mail-from") }
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82 // MailHelo is the helo message send to the SMTP server.
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83 func MailHelo() string { return viper.GetString("mail-helo") }
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85 // AllowedOrigins is a list of allowed host for CORS headers.
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86 func AllowedOrigins() []string { return viper.GetStringSlice("allowed-origins") }
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88 // GeoServerURL is the URL of the GeoServer used by gemma to serve map data.
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89 func GeoServerURL() string { return viper.GetString("geoserver-url") }
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91 // GeoServerUser is the adminstrative user to connect to the GeoServer.
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92 func GeoServerUser() string { return viper.GetString("geoserver-user") }
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94 // GeoServerPassword is the password of the adminstrative user
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95 // to connect to the GeoServer.
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96 func GeoServerPassword() string { return viper.GetString("geoserver-password") }
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98 // GeoServerClean is a flag to indicate that the GeoServer setup for
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99 // gemma should be freshly created at boot time.
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100 // This is useful in case of gemma update.
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101 // If false the only missing parts are added to the GeoServer setup.
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102 // This should be the default mode when running gemma after an update
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103 // as it reduces the pressure on the GeoServer and enables faster
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104 // rebooting.
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105 func GeoServerClean() bool { return viper.GetBool("geoserver-clean") }
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106
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107 // GeoServerStartupSQL can be used to add SQL commands to GeoServers database
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108 // session start script. See
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109 // https://docs.geoserver.org/stable/en/user/data/database/sqlsession.html
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110 // Note that the commands will be executed as the user configured as 'db-user'.
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111 func GeoServerStartupSQL() string {
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112 return viper.GetString("geoserver-startup-sql")
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113 }
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114
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115 // TmpDir is the path where to store temporary files.
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116 // If left empty the system default for temporary files is used.
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117 func TmpDir() string { return viper.GetString("tmp-dir") }
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118
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119 // PublishedConfig is a name of a JSON file where extra configuration is stored
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120 // to be served to to the web client.
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121 func PublishedConfig() string { return viper.GetString("published-config") }
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122
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123 // SOAPTimeout is the timeout till a SOAP request is canceled.
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124 func SOAPTimeout() time.Duration { return viper.GetDuration("soap-timeout") }
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125
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126 // ReportPath is a path where report templates are stored.
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127 func ReportPath() string { return viper.GetString("report-path") }
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128
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129 // LogFile is the path to the log file.
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130 func LogFile() string { return viper.GetString("log-file") }
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131
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132 // LogLevel is the log level of the application.
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133 func LogLevel() log.LogLevel { return log.ParseLogLevel(viper.GetString("log-level")) }
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134
408
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135 var (
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136 proxyKeyOnce sync.Once
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137 proxyKey []byte
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138 proxyPrefixOnce sync.Once
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139 proxyPrefix string
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140 externalURLOnce sync.Once
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141 externalURL string
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142 sessionTimeoutOnce sync.Once
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143 sessionTimeout time.Duration
408
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144 )
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145
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146 // ProxyKey is a crytographic key to sign the URLs generated by the proxy.
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147 // Use this to ensure that only known URLs are reachable over the proxy.
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148 // If left blank a random key is generated a gemma boot time.
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149 // Setting this value in the configuration will allow browsing proxy
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150 // generated URL across gemma reboot.
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151 // Use a strong secret key here (like pwgen -s 20).
408
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152 func ProxyKey() []byte {
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153 fetchKey := func() {
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154 if proxyKey == nil {
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155 key := []byte(viper.GetString("proxy-key"))
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156 if len(key) == 0 {
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157 key = common.GenerateRandomKey(64)
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158 }
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159 hash := sha256.New()
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160 hash.Write(key)
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161 proxyKey = hash.Sum(nil)
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162 }
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163 }
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164 proxyKeyOnce.Do(fetchKey)
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165 return proxyKey
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166 }
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167
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168 // ProxyPrefix is the prefix used in generated URLs by the proxy.
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169 // You may need to set this if you run gemma behind a proxy
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170 // on a specific domain.
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171 func ProxyPrefix() string {
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172 fetchPrefix := func() {
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173 if proxyPrefix == "" {
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174 if proxyPrefix = viper.GetString("proxy-prefix"); proxyPrefix == "" {
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175 proxyPrefix = fmt.Sprintf("http://%s:%d", WebHost(), WebPort())
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176 }
408
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177 }
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178 }
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179 proxyPrefixOnce.Do(fetchPrefix)
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180 return proxyPrefix
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181 }
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182
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183 // ExternalURL is the URL to find this server from the outside.
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184 func ExternalURL() string {
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185 fetchExternal := func() {
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186 if externalURL == "" {
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187 if externalURL = viper.GetString("external-url"); externalURL == "" {
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188 externalURL = fmt.Sprintf("http://%s:%d", WebHost(), WebPort())
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189 }
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190 }
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191 }
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192 externalURLOnce.Do(fetchExternal)
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193 return externalURL
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194 }
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195
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196 // SessionTimeout is the duration until a session expires if not renewed
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197 func SessionTimeout() time.Duration {
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198 fetchTimeout := func() {
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199 if sessionTimeout == 0 {
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200 sessionTimeout = viper.GetDuration("session-timeout")
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201 if sessionTimeout <= 0 {
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202 lg.Println("warn: non-positive session-timeout configured.")
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203 }
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204 }
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205 }
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206 sessionTimeoutOnce.Do(fetchTimeout)
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207 return sessionTimeout
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208 }
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209
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210 // SchemaDirs are the root directories where to find schema files.
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211 func SchemaDirs() string { return viper.GetString("schema-dirs") }
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212
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213 // RootCmd is cobra command to be bound th the cobra/viper infrastructure.
332
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214 var RootCmd = &cobra.Command{
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215 Use: "gemma",
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216 Short: "gemma is a server for waterway monitoring and management",
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217 }
119
29e56c342c9f Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
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diff changeset
218
385
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219 var allowedOrigins = []string{
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220 // TODO: Fill me!
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221 }
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222
332
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223 func init() {
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224 cobra.OnInitialize(initConfig)
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225 fl := RootCmd.PersistentFlags()
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226 fl.StringVarP(&configFile, "config", "c", "", "config file (default is $HOME/.gemma.toml)")
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227
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228 vbind := func(name string) { viper.BindPFlag(name, fl.Lookup(name)) }
302
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diff changeset
229
385
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230 str := func(name, value, usage string) {
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231 fl.String(name, value, usage)
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232 vbind(name)
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233 }
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234 strP := func(name, shorthand, value, usage string) {
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235 fl.StringP(name, shorthand, value, usage)
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parents: 338
diff changeset
236 vbind(name)
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
237 }
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
238 ui := func(name string, value uint, usage string) {
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
239 fl.Uint(name, value, usage)
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
240 vbind(name)
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
241 }
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
242 uiP := func(name, shorthand string, value uint, usage string) {
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
243 fl.UintP(name, shorthand, value, usage)
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
244 vbind(name)
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
245 }
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
246 strSl := func(name string, value []string, usage string) {
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
247 fl.StringSlice(name, value, usage)
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
248 vbind(name)
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
249 }
874
da526b58c9c4 Added a flag geoserver-clean to force deletion of the gemma workspace before configuring the GeoServer again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 517
diff changeset
250 bl := func(name string, value bool, usage string) {
da526b58c9c4 Added a flag geoserver-clean to force deletion of the gemma workspace before configuring the GeoServer again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 517
diff changeset
251 fl.Bool(name, value, usage)
da526b58c9c4 Added a flag geoserver-clean to force deletion of the gemma workspace before configuring the GeoServer again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 517
diff changeset
252 vbind(name)
da526b58c9c4 Added a flag geoserver-clean to force deletion of the gemma workspace before configuring the GeoServer again.
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parents: 517
diff changeset
253 }
3161
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3104
diff changeset
254 d := func(name string, value time.Duration, usage string) {
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3104
diff changeset
255 fl.Duration(name, value, usage)
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3104
diff changeset
256 vbind(name)
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3104
diff changeset
257 }
332
394fafeb4052 Use viper as config storage (I don't like it).
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parents: 325
diff changeset
258
517
7e45aaec7081 Consolidate configuration parameters.
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parents: 496
diff changeset
259 strP("db-host", "H", "localhost", "host of the database")
7e45aaec7081 Consolidate configuration parameters.
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parents: 496
diff changeset
260 uiP("db-port", "P", 5432, "port of the database")
7e45aaec7081 Consolidate configuration parameters.
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parents: 496
diff changeset
261 strP("db-name", "d", "gemma", "name of the database")
7e45aaec7081 Consolidate configuration parameters.
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parents: 496
diff changeset
262 str("db-user", "meta_login", "Metamorphic database user")
7e45aaec7081 Consolidate configuration parameters.
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parents: 496
diff changeset
263 str("db-password", "", "Metamorphic database user password")
7e45aaec7081 Consolidate configuration parameters.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 496
diff changeset
264 strP("db-ssl", "S", "prefer", "SSL mode of the database")
385
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
265
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parents: 338
diff changeset
266 strP("sessions", "s", "", "path to the sessions file")
3162
659549608644 Config: Fixed type of session timeout (its a duration now ... as intended).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3161
diff changeset
267 d("session-timeout", 3*time.Hour, "duration until sessions expire")
385
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
268
394
f24ed1d570c7 server: add default value for serving "web".
Bernhard Reiter <bernhard@intevation.de>
parents: 386
diff changeset
269 strP("web", "w", "./web", "path to the web files")
385
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
270 strP("host", "o", "localhost", "host of the web app")
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
271 uiP("port", "p", 8000, "port of the web app")
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parents: 338
diff changeset
272
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
273 str("mail-host", "localhost", "server to send mail with")
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
274 ui("mail-port", 465, "port of server to send mail with")
517
7e45aaec7081 Consolidate configuration parameters.
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parents: 496
diff changeset
275 str("mail-user", "gemma", "user to authenticate against mail-host.\n"+
7e45aaec7081 Consolidate configuration parameters.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 496
diff changeset
276 "Leave empty for trying to send without auth.")
385
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
277 str("mail-password", "", "password of user to send mail with")
489
8f3f7577fbe7 proxy: fix minor typo in default for --mail-from
Bernhard Reiter <bernhard@intevation.de>
parents: 449
diff changeset
278 str("mail-from", "noreply@localhost", "from line of mails")
385
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
279 str("mail-helo", "localhost", "name of server to send mail from.")
332
394fafeb4052 Use viper as config storage (I don't like it).
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parents: 325
diff changeset
280
385
3cfab707f909 Added config parameters for GeoServer.
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parents: 338
diff changeset
281 strSl("allowed-origins", allowedOrigins, "allow access for remote origins")
3cfab707f909 Added config parameters for GeoServer.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 338
diff changeset
282
3cfab707f909 Added config parameters for GeoServer.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 338
diff changeset
283 str("geoserver-url", "http://localhost:8080/geoserver", "URL to GeoServer")
3cfab707f909 Added config parameters for GeoServer.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 338
diff changeset
284 str("geoserver-user", "admin", "GeoServer user")
3cfab707f909 Added config parameters for GeoServer.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 338
diff changeset
285 str("geoserver-password", "geoserver", "GeoServer password")
874
da526b58c9c4 Added a flag geoserver-clean to force deletion of the gemma workspace before configuring the GeoServer again.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 517
diff changeset
286 bl("geoserver-clean", false, "Clean GeoServer setup")
408
ac23905e64b1 Improve WFS proxy a lot. It now generates signed re-writings.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 396
diff changeset
287
1644
eadf84bb0e98 New config variable 'external-url'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1366
diff changeset
288 str("proxy-key", "", "signing key for proxy URLs.\n"+
eadf84bb0e98 New config variable 'external-url'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1366
diff changeset
289 "Defaults to random key.")
eadf84bb0e98 New config variable 'external-url'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1366
diff changeset
290 str("proxy-prefix", "", "URL prefix of proxy.\n"+
2901
da1d063ee085 improve cmd/gemma/gemma --help
Bernhard Reiter <bernhard@intevation.de>
parents: 2639
diff changeset
291 "Defaults to 'http://${host}:${port}'")
408
ac23905e64b1 Improve WFS proxy a lot. It now generates signed re-writings.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 396
diff changeset
292
1644
eadf84bb0e98 New config variable 'external-url'.
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parents: 1366
diff changeset
293 str("external-url", "", "URL to find the server from the outside.\n"+
2901
da1d063ee085 improve cmd/gemma/gemma --help
Bernhard Reiter <bernhard@intevation.de>
parents: 2639
diff changeset
294 "Defaults to 'http://${host}:${port}'")
1644
eadf84bb0e98 New config variable 'external-url'.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1366
diff changeset
295
eadf84bb0e98 New config variable 'external-url'.
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parents: 1366
diff changeset
296 str("tmp-dir", "", "Temp directory of gemma server.\n"+
eadf84bb0e98 New config variable 'external-url'.
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parents: 1366
diff changeset
297 "Defaults to system temp directory.")
2181
bd09d6ad4c14 SOAP: Add validating parser (uses 'xmllint') for manual uploads.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1644
diff changeset
298
bd09d6ad4c14 SOAP: Add validating parser (uses 'xmllint') for manual uploads.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1644
diff changeset
299 str("schema-dirs", ".", "Directories to find XSD schema files in (recursive).")
3104
19fc84a98479 Added "published-config" field to configuration.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2906
diff changeset
300
19fc84a98479 Added "published-config" field to configuration.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2906
diff changeset
301 str("published-config", "", "path to a config file served to client.")
3161
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3104
diff changeset
302
5321
0919946f624b Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4624
diff changeset
303 str("report-path", "", "path to a report templates.")
0919946f624b Added a report controller.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 4624
diff changeset
304
3582
317d176ef38c GM import: Try three times when timeouts happen on SOAP service. Increase SOAP timeout to 3 minutes.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 3169
diff changeset
305 d("soap-timeout", 3*time.Minute, "Timeout till a SOAP request is canceled.")
5490
5f47eeea988d Use own logging package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 5321
diff changeset
306
5f47eeea988d Use own logging package.
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parents: 5321
diff changeset
307 str("log-file", "", "path to a file to log to.")
5f47eeea988d Use own logging package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 5321
diff changeset
308 str("log-level", log.InfoLogLevel.String(), "path to a file to log to.")
5f47eeea988d Use own logging package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 5321
diff changeset
309
1000
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
310 }
958
2818ad6c7d32 Started with import queue.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 874
diff changeset
311
1000
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
312 var (
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
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parents: 958
diff changeset
313 configCond = sync.NewCond(new(sync.Mutex))
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
314 configReady bool
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
315 )
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
316
1366
a25a4d4a3e6e Backend: Added the internal api documentation of the config mechanism of the gemma server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1334
diff changeset
317 // Ready tells if the configuration is ready to use..
1000
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
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parents: 958
diff changeset
318 func Ready() {
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
319 configCond.L.Lock()
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
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parents: 958
diff changeset
320 defer configCond.L.Unlock()
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
321 configReady = true
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
322 configCond.Broadcast()
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
323 }
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
324
1366
a25a4d4a3e6e Backend: Added the internal api documentation of the config mechanism of the gemma server.
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parents: 1334
diff changeset
325 // WaitReady blocks until the configuration is ready to use.
a25a4d4a3e6e Backend: Added the internal api documentation of the config mechanism of the gemma server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1334
diff changeset
326 // Call this if you have a go routine that needs configuration
a25a4d4a3e6e Backend: Added the internal api documentation of the config mechanism of the gemma server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1334
diff changeset
327 // support. This guarantees that the initialization is done
a25a4d4a3e6e Backend: Added the internal api documentation of the config mechanism of the gemma server.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1334
diff changeset
328 // before accessing the configuration data.
1000
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
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parents: 958
diff changeset
329 func WaitReady() {
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
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parents: 958
diff changeset
330 configCond.L.Lock()
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
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parents: 958
diff changeset
331 defer configCond.L.Unlock()
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
332 for !configReady {
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
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parents: 958
diff changeset
333 configCond.Wait()
14425e35e3c2 Wait with start of import queue until configuration is fully loaded.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 958
diff changeset
334 }
332
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
335 }
325
c23eb0f34e39 Added CORS support.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 302
diff changeset
336
332
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
337 func initConfig() {
394fafeb4052 Use viper as config storage (I don't like it).
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parents: 325
diff changeset
338 // Don't forget to read config either from cfgFile or from home directory!
394fafeb4052 Use viper as config storage (I don't like it).
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parents: 325
diff changeset
339 if configFile != "" {
394fafeb4052 Use viper as config storage (I don't like it).
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parents: 325
diff changeset
340 // Use config file from the flag.
394fafeb4052 Use viper as config storage (I don't like it).
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parents: 325
diff changeset
341 viper.SetConfigFile(configFile)
394fafeb4052 Use viper as config storage (I don't like it).
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parents: 325
diff changeset
342 } else {
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
343 // Find home directory.
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
344 home, err := homedir.Dir()
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
345 if err != nil {
5490
5f47eeea988d Use own logging package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 5321
diff changeset
346 lg.Fatalf("error: %v\n", err)
332
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
347 }
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
348
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
349 // Search config in home directory with name ".cobra" (without extension).
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
350 viper.AddConfigPath(home)
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parents: 325
diff changeset
351 viper.SetConfigName(".gemma")
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
352 }
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
353 if err := viper.ReadInConfig(); err != nil {
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
354 if _, ok := err.(viper.ConfigFileNotFoundError); ok && configFile == "" {
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
355 // Don't bother if not found.
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
356 return
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
357 }
5490
5f47eeea988d Use own logging package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 5321
diff changeset
358 lg.Fatalf("Can't read config: %v\n", err)
332
394fafeb4052 Use viper as config storage (I don't like it).
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 325
diff changeset
359 }
28
714787accd26 Fetch database connection string parts from configuration.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
360 }