annotate pkg/soap/soap.go @ 3252:fccb28813159

client: wterlevel diagram: improved performance By not rendering points that are outside of the visible area of the chart, performance was significantly improved. But still the chart is not really very responsive and smooth when viewing large data sets.
author Markus Kottlaender <markus@intevation.de>
date Tue, 14 May 2019 12:24:14 +0200
parents 6a44a89ffb51
children bd1385c00b59
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rev   line source
1017
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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 soap
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15
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16 import (
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17 "bytes"
3161
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18 "context"
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19 "crypto/tls"
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20 "encoding/xml"
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21 "fmt"
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22 "io/ioutil"
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23 "log"
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24 "math/rand"
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25 "net"
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26 "net/http"
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27 "sync"
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28 "time"
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29
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30 "gemma.intevation.de/gemma/pkg/config"
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31 )
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32
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33 const timeout = time.Duration(30 * time.Second)
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34
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35 func dialTimeout(network, addr string) (net.Conn, error) {
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36 return net.DialTimeout(network, addr, timeout)
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37 }
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38
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39 type SOAPEnvelope struct {
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40 XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ Envelope"`
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41 Header *SOAPHeader
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42 Body SOAPBody
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43 }
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44
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45 type SOAPHeader struct {
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46 XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ Header"`
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47
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48 Items []interface{} `xml:",omitempty"`
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49 }
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50
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51 type SOAPBody struct {
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52 XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ Body"`
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53
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54 Fault *SOAPFault `xml:",omitempty"`
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55 Content interface{} `xml:",omitempty"`
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56 }
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57
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58 type SOAPFault struct {
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59 XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ Fault"`
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60
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61 Code string `xml:"faultcode,omitempty"`
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62 String string `xml:"faultstring,omitempty"`
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63 Actor string `xml:"faultactor,omitempty"`
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64 Detail string `xml:"detail,omitempty"`
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65 }
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66
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67 const (
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68 // Predefined WSS namespaces to be used in
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69 WssNsWSSE string = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
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70 WssNsWSU string = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
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71 WssNsType string = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText"
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72 )
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73
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74 type WSSSecurityHeader struct {
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75 XMLName xml.Name `xml:"http://schemas.xmlsoap.org/soap/envelope/ wsse:Security"`
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76 XmlNSWsse string `xml:"xmlns:wsse,attr"`
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77
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78 MustUnderstand string `xml:"mustUnderstand,attr,omitempty"`
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79
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80 Token *WSSUsernameToken `xml:",omitempty"`
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81 }
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82
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83 type WSSUsernameToken struct {
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84 XMLName xml.Name `xml:"wsse:UsernameToken"`
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85 XmlNSWsu string `xml:"xmlns:wsu,attr"`
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86 XmlNSWsse string `xml:"xmlns:wsse,attr"`
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87
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88 Id string `xml:"wsu:Id,attr,omitempty"`
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89
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90 Username *WSSUsername `xml:",omitempty"`
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91 Password *WSSPassword `xml:",omitempty"`
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92 }
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93
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94 type WSSUsername struct {
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95 XMLName xml.Name `xml:"wsse:Username"`
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96 XmlNSWsse string `xml:"xmlns:wsse,attr"`
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97
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98 Data string `xml:",chardata"`
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99 }
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100
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101 type WSSPassword struct {
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102 XMLName xml.Name `xml:"wsse:Password"`
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103 XmlNSWsse string `xml:"xmlns:wsse,attr"`
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104 XmlNSType string `xml:"Type,attr"`
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105
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106 Data string `xml:",chardata"`
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107 }
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108
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109 type BasicAuth struct {
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110 Login string
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111 Password string
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112 }
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113
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114 type SOAPClient struct {
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115 url string
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116 tlsCfg *tls.Config
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117 auth *BasicAuth
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118 headers []interface{}
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119 }
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120
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121 // **********
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122 // Accepted solution from http://stackoverflow.com/questions/22892120/how-to-generate-a-random-string-of-a-fixed-length-in-golang
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123 // Author: Icza - http://stackoverflow.com/users/1705598/icza
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124
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125 const (
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126 letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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127 letterIdxBits = 6 // 6 bits to represent a letter index
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128 letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
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129 letterIdxMax = 63 / letterIdxBits // # of letter indices fitting in 63 bits
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130 )
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131
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132 func randStringBytesMaskImprSrc(n int) string {
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133 src := rand.NewSource(time.Now().UnixNano())
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134 b := make([]byte, n)
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135 // A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
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136 for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
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137 if remain == 0 {
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138 cache, remain = src.Int63(), letterIdxMax
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139 }
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140 if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
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141 b[i] = letterBytes[idx]
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142 i--
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143 }
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144 cache >>= letterIdxBits
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145 remain--
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146 }
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147 return string(b)
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148 }
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149
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150 // **********
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151
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152 func NewWSSSecurityHeader(user, pass, mustUnderstand string) *WSSSecurityHeader {
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153 hdr := &WSSSecurityHeader{XmlNSWsse: WssNsWSSE, MustUnderstand: mustUnderstand}
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154 hdr.Token = &WSSUsernameToken{XmlNSWsu: WssNsWSU, XmlNSWsse: WssNsWSSE, Id: "UsernameToken-" + randStringBytesMaskImprSrc(9)}
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155 hdr.Token.Username = &WSSUsername{XmlNSWsse: WssNsWSSE, Data: user}
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156 hdr.Token.Password = &WSSPassword{XmlNSWsse: WssNsWSSE, XmlNSType: WssNsType, Data: pass}
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157 return hdr
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158 }
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159
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160 func (b *SOAPBody) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
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161 if b.Content == nil {
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162 return xml.UnmarshalError("Content must be a pointer to a struct")
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163 }
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164
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165 var (
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166 token xml.Token
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167 err error
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168 consumed bool
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169 )
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170
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171 Loop:
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172 for {
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173 if token, err = d.Token(); err != nil {
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174 return err
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175 }
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176
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177 if token == nil {
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178 break
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parents:
diff changeset
179 }
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180
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diff changeset
181 switch se := token.(type) {
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182 case xml.StartElement:
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183 if consumed {
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184 return xml.UnmarshalError("Found multiple elements inside SOAP body; not wrapped-document/literal WS-I compliant")
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185 } else if se.Name.Space == "http://schemas.xmlsoap.org/soap/envelope/" && se.Name.Local == "Fault" {
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186 b.Fault = &SOAPFault{}
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187 b.Content = nil
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188
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189 err = d.DecodeElement(b.Fault, &se)
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190 if err != nil {
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191 return err
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diff changeset
192 }
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193
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194 consumed = true
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diff changeset
195 } else {
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diff changeset
196 if err = d.DecodeElement(b.Content, &se); err != nil {
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197 return err
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diff changeset
198 }
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diff changeset
199
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diff changeset
200 consumed = true
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diff changeset
201 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
202 case xml.EndElement:
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diff changeset
203 break Loop
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parents:
diff changeset
204 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
205 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
206
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diff changeset
207 return nil
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parents:
diff changeset
208 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
209
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diff changeset
210 func (f *SOAPFault) Error() string {
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diff changeset
211 return f.String
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parents:
diff changeset
212 }
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diff changeset
213
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diff changeset
214 func NewSOAPClient(url string, insecureSkipVerify bool, auth *BasicAuth) *SOAPClient {
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diff changeset
215 tlsCfg := &tls.Config{
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diff changeset
216 InsecureSkipVerify: insecureSkipVerify,
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diff changeset
217 }
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diff changeset
218 return NewSOAPClientWithTLSConfig(url, tlsCfg, auth)
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parents:
diff changeset
219 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
220
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parents:
diff changeset
221 func NewSOAPClientWithTLSConfig(url string, tlsCfg *tls.Config, auth *BasicAuth) *SOAPClient {
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parents:
diff changeset
222 return &SOAPClient{
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parents:
diff changeset
223 url: url,
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parents:
diff changeset
224 tlsCfg: tlsCfg,
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diff changeset
225 auth: auth,
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parents:
diff changeset
226 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
227 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
228
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diff changeset
229 func (s *SOAPClient) AddHeader(header interface{}) {
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diff changeset
230 s.headers = append(s.headers, header)
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parents:
diff changeset
231 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
232
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
233 func (s *SOAPClient) Call(soapAction string, request, response interface{}) error {
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
234 envelope := SOAPEnvelope{}
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parents:
diff changeset
235
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
236 if s.headers != nil && len(s.headers) > 0 {
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diff changeset
237 soapHeader := &SOAPHeader{Items: make([]interface{}, len(s.headers))}
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parents:
diff changeset
238 copy(soapHeader.Items, s.headers)
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parents:
diff changeset
239 envelope.Header = soapHeader
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
240 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
241
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
242 envelope.Body.Content = request
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
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parents:
diff changeset
243 buffer := new(bytes.Buffer)
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parents:
diff changeset
244
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
245 encoder := xml.NewEncoder(buffer)
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
246 //encoder.Indent("", " ")
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247
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248 if err := encoder.Encode(envelope); err != nil {
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249 return err
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parents:
diff changeset
250 }
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parents:
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251
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parents:
diff changeset
252 if err := encoder.Flush(); err != nil {
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parents:
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253 return err
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
254 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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255
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256 //log.Println(buffer.String())
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257
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parents:
diff changeset
258 req, err := http.NewRequest("POST", s.url, buffer)
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parents:
diff changeset
259 if err != nil {
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parents:
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260 return err
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
261 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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262 if s.auth != nil {
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263 req.SetBasicAuth(s.auth.Login, s.auth.Password)
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parents:
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264 }
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parents:
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265
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266 req.Header.Add("Content-Type", "text/xml; charset=\"utf-8\"")
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parents:
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267 req.Header.Add("SOAPAction", soapAction)
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268
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269 req.Header.Set("User-Agent", "gowsdl/0.1")
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270 req.Close = true
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271
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272 tr := &http.Transport{
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parents:
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273 TLSClientConfig: s.tlsCfg,
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parents:
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274 Dial: dialTimeout,
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parents:
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275 }
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parents:
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276
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277 client := &http.Client{Transport: tr}
1810
7ee9bdaac336 Waterway gauge import: Added support for username/password.
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parents: 1017
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278
3161
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parents: 1810
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279 timeout := config.SOAPTimeout()
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parents: 1810
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280
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parents: 1810
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281 ctx, cancel := context.WithTimeout(context.Background(), timeout)
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parents: 1810
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282
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1810
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283 var once sync.Once
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
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parents: 1810
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284
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
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parents: 1810
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285 defer once.Do(cancel)
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parents: 1810
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286
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
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parents: 1810
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287 req = req.WithContext(ctx)
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1810
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288
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1810
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289 go func() {
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
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parents: 1810
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290 defer once.Do(cancel)
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
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parents: 1810
diff changeset
291 <-ctx.Done()
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
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parents: 1810
diff changeset
292 }()
6a44a89ffb51 SOAP: Added a globally configurable timeout (default 1min) till a SOAP request is canceled.
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parents: 1810
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293
566
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parents:
diff changeset
294 res, err := client.Do(req)
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parents:
diff changeset
295 if err != nil {
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
296 return err
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
297 }
1810
7ee9bdaac336 Waterway gauge import: Added support for username/password.
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parents: 1017
diff changeset
298 if res.StatusCode < http.StatusOK || res.StatusCode > 299 {
7ee9bdaac336 Waterway gauge import: Added support for username/password.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1017
diff changeset
299 return fmt.Errorf(
7ee9bdaac336 Waterway gauge import: Added support for username/password.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1017
diff changeset
300 "HTTP error: %d (%s)", res.StatusCode, http.StatusText(res.StatusCode))
7ee9bdaac336 Waterway gauge import: Added support for username/password.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 1017
diff changeset
301 }
566
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parents:
diff changeset
302 defer res.Body.Close()
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parents:
diff changeset
303
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parents:
diff changeset
304 rawbody, err := ioutil.ReadAll(res.Body)
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parents:
diff changeset
305 if err != nil {
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
306 return err
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
307 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
308 if len(rawbody) == 0 {
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parents:
diff changeset
309 log.Println("empty response")
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
310 return nil
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
311 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
312
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
313 //log.Println(string(rawbody))
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
314 respEnvelope := new(SOAPEnvelope)
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parents:
diff changeset
315 respEnvelope.Body = SOAPBody{Content: response}
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
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parents:
diff changeset
316 err = xml.Unmarshal(rawbody, respEnvelope)
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
317 if err != nil {
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
318 return err
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
319 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
320
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
321 fault := respEnvelope.Body.Fault
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
322 if fault != nil {
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
323 return fault
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
324 }
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
325
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
326 return nil
5e45f441aed6 Added SOAP client for the IFBN bottleneck service.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
327 }