Mercurial > trustbridge

annotate ui/certificate.cpp @ 349:a49766196a7d

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Add certificateFromFile method Currently untested
author Andre Heinecke <andre.heinecke@intevation.de>
date Thu, 10 Apr 2014 15:08:54 +0200
parents 64e38886f903
children 5f1494fab517
rev   line source
21
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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 "certhelp.h"
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8 #include "listutil.h"
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9
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10 /* Qt wrapper around certhelp functions. */
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11 QString getX509Value(x509_name *namebuf, unsigned char *oid) {
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12 QString retval;
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13 char * buf = get_oid_valstr(namebuf, oid);
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14 if (buf == NULL) {
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15 return retval;
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16 }
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17 retval = QString::fromUtf8(buf, -1);
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18 free(buf);
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19 return retval;
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20 }
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22 void Certificate::parseDetails(const QByteArray& cert) {
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23 x509_crt chain;
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24
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25 x509_crt_init(&chain);
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26 if (x509_crt_parse_der(&chain, (const unsigned char *)cert.data(),
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27 cert.size()) != 0) {
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28 qDebug() << "Failed to parse cert..";
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29 return;
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30 }
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31
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32 mValidFrom = QDateTime(QDate(chain.valid_from.year,
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33 chain.valid_from.mon,
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34 chain.valid_from.day),
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35 QTime(chain.valid_from.hour,
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36 chain.valid_from.min,
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37 chain.valid_from.sec));
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38
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39 mValidTo = QDateTime(QDate(chain.valid_to.year,
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40 chain.valid_to.mon,
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41 chain.valid_to.day),
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42 QTime(chain.valid_to.hour,
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43 chain.valid_to.min,
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44 chain.valid_to.sec));
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45
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46 mSubjectCN = getX509Value(&(chain.subject), CERT_OID_CN);
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47 mSubjectOU = getX509Value(&(chain.subject), CERT_OID_OU);
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48 mSubjectO = getX509Value(&(chain.subject), CERT_OID_O);
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49 mSubjectSN = getX509Value(&(chain.subject), CERT_OID_SN);
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50 x509_crt_free(&chain);
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51
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52 mDetails = QObject::tr("Certificate:\n"
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53 " <bold>%1</bold>\n"
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54 " %2, %3\n\n"
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55 "Serial number:\n"
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56 "%4\n"
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57 "Valid from: <bold>%5</bold> to <bold>%6</bold>\n\n"
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58 "Issued by: ..")
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59 .arg(mSubjectCN)
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60 .arg(mSubjectO)
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61 .arg(mSubjectOU)
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62 .arg(mSubjectSN)
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63 .arg(QLocale::system().toString(mValidFrom))
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64 .arg(QLocale::system().toString(mValidTo));
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65 }
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66
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67 Certificate::Certificate(const QByteArray& derData) :
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68 mValid(false)
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69 {
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70 if (derData.isEmpty()) {
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71 return;
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72 }
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73
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74 parseDetails(derData);
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75
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76 mValid = !mSubjectCN.isEmpty();
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77
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78 mBaseLine = derData.toBase64();
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79 }
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80
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81 Certificate::Certificate(const QString& b64Line) :
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82 mValid(false)
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83 {
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84 if (b64Line.isEmpty()) {
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85 return;
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86 }
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87
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88 /* Cut of the first two chars (e.g. I: and decode) */
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89 QByteArray derData = QByteArray::fromBase64(
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90 b64Line.right(b64Line.size() - 2).toLatin1());
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91
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92 parseDetails(derData);
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93
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94 /* If the subject CN is set then at least one x509parse
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95 * in polarssl was successfull. And a root certificate
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96 * always needs to have a subject CN */
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97 mValid = !mSubjectCN.isEmpty();
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98
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99 mBaseLine = b64Line;
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100 }
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101
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102 QString Certificate::shortDescription() const {
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103 if (!isValid()) {
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104 return QObject::tr("Failed to parse certificate");
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105 }
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106
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107 QString ret = mSubjectCN; /* Necessary by definition */
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108 if (!mSubjectO.isEmpty()) {
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109 ret += " - " + mSubjectO;
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110 }
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111 if (!mSubjectOU.isEmpty()) {
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112 ret += ", " + mSubjectOU;
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113 }
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114 return ret;
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115 }
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116
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117 QList<Certificate> Certificate::fromFileName(const QString& file_name) {
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118 /* We read the file using Qt to avoid filename encoding problems
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119 * on Windows */
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120
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121 /* TODO change qDebug errors into messageboxes */
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122 QFile certificateFile(file_name);
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123 QByteArray fileContent;
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124 QList<Certificate> retval;
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125 x509_crt chain;
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126 int ret = 0;
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127 if (!certificateFile.open(QIODevice::ReadOnly)) {
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128 qDebug() << "Failed to read file.";
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129 return retval;
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130 }
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131
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132 if (certificateFile.size() > MAX_LINE_LENGTH * MAX_LINES) {
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133 qDebug() << "File too large";
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134 return retval;
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135 }
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136
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137 fileContent = certificateFile.readAll();
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138
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139 x509_crt_init(&chain);
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140
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141 ret = x509_crt_parse(&chain,
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142 reinterpret_cast<const unsigned char*>(fileContent.constData()),
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143 fileContent.size());
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144
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145 if (ret < 0) {
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146 qDebug() << "Failed to parse certificates.";
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147 return retval;
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148 }
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149
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150 if (ret > 0) {
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151 qDebug() << "Some certificates could not be parsed.";
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152 /* Maybe return here? */
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153 }
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154
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155 x509_crt *iter = &chain;
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156
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157 while (iter) {
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158 QByteArray derData(reinterpret_cast<const char*>(iter->raw.p),
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159 static_cast<int>(iter->raw.len));
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160 retval << Certificate(derData);
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161 iter = iter->next;
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162 }
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163 x509_crt_free(&chain);
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164
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165 return retval;
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166 }
http://wald.intevation.org/projects/trustbridge/