Mercurial > trustbridge

annotate ui/certificate.cpp @ 378:31079bd54036

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Add fingerprint to certificate
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 15 Apr 2014 12:36:22 +0200
parents 67b471c4d1fc
children 2ddc685cba33
rev   line source
21
dc1e1e9e62ce Add certificate class and use it
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1 #include "certificate.h"
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2 #include <QDebug>
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3 #include <QFile>
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4 #include <QStringList>
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5 #include <QObject>
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6
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7 #include <polarssl/sha1.h>
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8
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9 #include "certhelp.h"
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10 #include "listutil.h"
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11
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12 /* Qt wrapper around certhelp functions. */
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13 QString getX509Value(x509_name *namebuf, unsigned char *oid) {
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14 QString retval;
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15 char * buf = get_oid_valstr(namebuf, oid);
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16 if (buf == NULL) {
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17 return retval;
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18 }
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19 retval = QString::fromUtf8(buf, -1);
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20 free(buf);
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21 return retval;
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22 }
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23
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24 void Certificate::parseDetails(const QByteArray& cert) {
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25 x509_crt chain;
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26
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27 x509_crt_init(&chain);
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28 if (x509_crt_parse_der(&chain, (const unsigned char *)cert.data(),
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29 cert.size()) != 0) {
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30 qDebug() << "Failed to parse cert..";
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31 return;
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32 }
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33
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34 mValidFrom = QDateTime(QDate(chain.valid_from.year,
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35 chain.valid_from.mon,
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36 chain.valid_from.day),
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37 QTime(chain.valid_from.hour,
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38 chain.valid_from.min,
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39 chain.valid_from.sec));
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40
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41 mValidTo = QDateTime(QDate(chain.valid_to.year,
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42 chain.valid_to.mon,
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43 chain.valid_to.day),
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44 QTime(chain.valid_to.hour,
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45 chain.valid_to.min,
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46 chain.valid_to.sec));
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47
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48 mSubjectCN = getX509Value(&(chain.subject), CERT_OID_CN);
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49 mSubjectOU = getX509Value(&(chain.subject), CERT_OID_OU);
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50 mSubjectO = getX509Value(&(chain.subject), CERT_OID_O);
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51 mSubjectSN = getX509Value(&(chain.subject), CERT_OID_SN);
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52
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53 /* Calculate sha1 fingerprint */
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54 unsigned char sha1sum[20];
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55 sha1(chain.raw.p, chain.raw.len, sha1sum);
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56 for (int i=0; i < 20; i++) {
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57 mFingerprint += QString("%1").arg(sha1sum[i], 0, 16);
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58 if (i != 19) {
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59 mFingerprint += ":";
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60 }
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61 }
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62
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63 x509_crt_free(&chain);
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64
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65 mDetails = QObject::tr("Certificate:\n"
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66 " <bold>%1</bold>\n"
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67 " %2, %3\n\n"
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68 "Serial number:\n"
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69 "%4\n"
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70 "Valid from: <bold>%5</bold> to <bold>%6</bold>\n\n"
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71 "Issued by: ..")
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72 .arg(mSubjectCN)
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73 .arg(mSubjectO)
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74 .arg(mSubjectOU)
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75 .arg(mSubjectSN)
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76 .arg(QLocale::system().toString(mValidFrom))
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77 .arg(QLocale::system().toString(mValidTo));
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78
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79 }
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80
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81 Certificate::Certificate(const QByteArray& derData) :
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82 mValid(false)
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83 {
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84 if (derData.isEmpty()) {
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85 return;
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86 }
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87
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88 parseDetails(derData);
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89
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90 mValid = !mSubjectCN.isEmpty();
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91
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92 /* Default is installation for new certificates */
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93 mBaseLine = QString::fromLatin1("I:") + derData.toBase64();
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94 }
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95
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96 Certificate::Certificate(const QString& b64Line) :
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97 mValid(false)
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98 {
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99 if (b64Line.isEmpty()) {
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100 return;
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101 }
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102
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103 /* Cut of the first two chars (e.g. I: and decode) */
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104 QByteArray derData = QByteArray::fromBase64(
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105 b64Line.right(b64Line.size() - 2).toLatin1());
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106
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107 parseDetails(derData);
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108
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109 /* If the subject CN is set then at least one x509parse
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110 * in polarssl was successfull. And a root certificate
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111 * always needs to have a subject CN */
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112 mValid = !mSubjectCN.isEmpty();
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113
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114 mBaseLine = b64Line;
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115 }
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116
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117 QString Certificate::shortDescription() const {
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118 if (!isValid()) {
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119 return QObject::tr("Failed to parse certificate");
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120 }
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121
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122 QString ret = mSubjectCN; /* Necessary by definition */
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123 if (!mSubjectO.isEmpty()) {
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124 ret += " - " + mSubjectO;
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125 }
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126 if (!mSubjectOU.isEmpty()) {
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127 ret += ", " + mSubjectOU;
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128 }
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129 return ret;
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130 }
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131
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132 QList<Certificate> Certificate::fromFileName(const QString& file_name) {
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133 /* We read the file using Qt to avoid filename encoding problems
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134 * on Windows */
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135
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136 /* TODO change qDebug errors into messageboxes */
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137 QFile certificateFile(file_name);
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138 QByteArray fileContent;
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139 QList<Certificate> retval;
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140 x509_crt chain;
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141 int ret = 0;
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142 if (!certificateFile.open(QIODevice::ReadOnly)) {
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143 qDebug() << "Failed to read file.";
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144 return retval;
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145 }
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146
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147 if (certificateFile.size() > MAX_LINE_LENGTH * MAX_LINES) {
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148 qDebug() << "File too large";
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149 return retval;
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150 }
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151
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152 fileContent = certificateFile.readAll();
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153
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154 x509_crt_init(&chain);
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155
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156 ret = x509_crt_parse(&chain,
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157 reinterpret_cast<const unsigned char*>(fileContent.constData()),
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158 fileContent.size());
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159
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160 if (ret < 0) {
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161 qDebug() << "Failed to parse certificates.";
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162 return retval;
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163 }
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164
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165 if (ret > 0) {
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166 qDebug() << "Some certificates could not be parsed.";
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167 /* Maybe return here? */
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168 }
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169
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170 x509_crt *iter = &chain;
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171
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172 while (iter) {
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173 QByteArray derData(reinterpret_cast<const char*>(iter->raw.p),
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174 static_cast<int>(iter->raw.len));
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175 retval << Certificate(derData);
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176 iter = iter->next;
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177 }
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178 x509_crt_free(&chain);
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179
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180 return retval;
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181 }
355
5f1494fab517 merged.
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182
352
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183 void Certificate::setInstallCert(bool install)
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184 {
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185 if (install && mBaseLine.startsWith("R:")) {
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186 mBaseLine.replace(0, 1, "I");
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187 }
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188 else if (!install && mBaseLine.startsWith("I:")) {
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189 mBaseLine.replace(0, 1, "R");
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190 }
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191 }
http://wald.intevation.org/projects/trustbridge/