1 | #########################################################################
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2 | #
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3 | # Subroutine for the 'download' command
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4 | #
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5 | #########################################################################
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6 |
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7 | commandDOWNLOAD() {
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8 | printINFO "About to run \"$action\" for samhain version \"$src_version\""
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9 |
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10 | needEXE du gunzip tar gpg
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11 |
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12 |
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13 | if test x"$simulate" = x0
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14 | then
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15 | cd "${basedir}/tmp" || printFATAL "could not cd to ${basedir}/tmp"
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16 | rm -f "samhain-${src_version}.tar.gz"
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17 | else
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18 | #
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19 | # -- Simulate only: print what would be done
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20 | #
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21 | printINFO "cd ${basedir}/tmp"
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22 | printINFO "rm -f samhain-${src_version}.tar.gz"
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23 | fi
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24 |
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25 | command=""
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26 |
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27 | if test -z "$command"
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28 | then
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29 | findEXE wget
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30 | if test -n "$EXECUTABLE"
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31 | then
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32 | command="$EXECUTABLE"
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33 | opt1="--quiet"
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34 | opt2="-O"
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35 | opt3="-"
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36 | fi
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37 | fi
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38 |
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39 | if test -z "$command"
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40 | then
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41 | findEXE curl
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42 | if test -n "$EXECUTABLE"
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43 | then
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44 | command="$EXECUTABLE"
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45 | opt1="--silent"
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46 | opt2="--show-error"
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47 | opt3="--fail"
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48 | fi
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49 | fi
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50 |
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51 | if test -z "$command"
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52 | then
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53 | findEXE lynx
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54 | if test -n "$EXECUTABLE"
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55 | then
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56 | command="$EXECUTABLE"
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57 | opt1="-source"
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58 | opt2=""
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59 | opt3=""
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60 | fi
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61 | fi
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62 |
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63 | if test -z "$command"
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64 | then
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65 | findEXE links
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66 | if test -n "$EXECUTABLE"
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67 | then
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68 | command="$EXECUTABLE"
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69 | opt1="-source"
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70 | opt2=""
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71 | opt3=""
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72 | fi
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73 | fi
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74 |
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75 | if test -z "$command"
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76 | then
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77 | findEXE lwp-request
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78 | if test -n "$EXECUTABLE"
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79 | then
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80 | command="$EXECUTABLE"
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81 | opt1=""
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82 | opt2=""
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83 | opt3=""
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84 | fi
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85 | fi
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86 |
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87 | if test -z "$command"
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88 | then
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89 | findEXE fetch
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90 | if test -n "$EXECUTABLE"
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91 | then
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92 | command="$EXECUTABLE"
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93 | opt1="-q"
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94 | opt2="-o"
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95 | opt3="-"
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96 | fi
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97 | fi
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98 |
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99 | if test -z "$command"
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100 | then
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101 | findEXE fget
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102 | if test -n "$EXECUTABLE"
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103 | then
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104 | command="$EXECUTABLE"
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105 | opt1=""
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106 | opt2=""
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107 | opt3=""
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108 | fi
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109 | fi
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110 |
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111 | if test -z "$command"
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112 | then
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113 | printFATAL "No wget, curl, lynx, links, lwp-request, fetch, fget in your \$PATH, cannot download"
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114 | fi
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115 |
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116 | if test x"${src_version}" = xcurrent
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117 | then
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118 | location="http://la-samhna.de/samhain/samhain-current.tar.gz"
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119 | if test -f /usr/bin/md5sum && test -f /bin/hostname
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120 | then
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121 | #
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122 | # for testing
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123 | #
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124 | dl_tmp_hna=`/bin/hostname -f 2>/dev/null`
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125 | dl_tmp_md5=`echo "x${dl_tmp_hna}" | md5sum`
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126 | if test x"$dl_tmp_md5" = "xc5f41bf28a7baf12c763f1be27a9b863"
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127 | then
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128 | location="http://localhost/samhain-current.tar.gz"
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129 | fi
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130 | fi
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131 | else
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132 | location="http://la-samhna.de/archive/samhain_signed-${src_version}.tar.gz"
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133 | if test -f /usr/bin/md5sum && test -f /bin/hostname
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134 | then
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135 | #
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136 | # for testing
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137 | #
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138 | dl_tmp_hna=`/bin/hostname -f 2>/dev/null`
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139 | dl_tmp_md5=`echo "x${dl_tmp_hna}" | /usr/bin/md5sum 2>/dev/null`
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140 | if test x"$dl_tmp_md5" = "xc5f41bf28a7baf12c763f1be27a9b863"
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141 | then
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142 | location="http://localhost/samhain_signed-${src_version}.tar.gz"
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143 | fi
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144 | fi
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145 | fi
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146 |
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147 |
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148 | printINFO "Executing $command $opt1 $opt2 $opt3 $location"
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149 |
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150 | if test x"$simulate" = x0
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151 | then
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152 | eval "$command" "$opt1" "$opt2" "$opt3" "$location" 1>"samhain-${src_version}.tar.gz" 2>/dev/null
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153 | else
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154 | printINFO "$command" "$opt1" "$opt2" "$opt3" "$location" 1>"samhain-${src_version}.tar.gz"
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155 | printINFO "du -s -k samhain-${src_version}.tar.gz | awk '{ print $1 }'"
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156 | printLOG "Downloaded to samhain-${src_version}.tar.gz (XXX kB)"
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157 | printINFO "gunzip -c samhain-${src_version}.tar.gz | tar -tvf - "
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158 | printINFO "Source in tarball is version X.X.X"
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159 | printINFO "Unpacking to ${tmpD}"
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160 | printINFO "cd ${tmpD}"
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161 | printINFO "gunzip -c ${basedir}/tmp/samhain-${src_version}.tar.gz | tar -xf -"
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162 | printINFO "rm -f ${basedir}/tmp/samhain-${src_version}.tar.gz"
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163 | printINFO "Checking PGP signature"
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164 | printINFO "(LANG=C; gpg --status-fd 1 --verify samhain-X.X.X.tar.gz.asc samhain-X.X.X.tar.gz 2>&1 | grep 'GOODSIG')"
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165 | printINFO "cp samhain-X.X.X.tar.gz.asc samhain-X.X.X.tar.gz ${basedir}/source"
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166 | printLOG "Installed samhain (X.X.X) source"
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167 | return 0
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168 | fi
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169 |
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170 | if test -f "samhain-${src_version}.tar.gz"
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171 | then
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172 | :
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173 | else
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174 | printFATAL "failed: $command $location"
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175 | fi
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176 |
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177 | size=`du -s -k "samhain-${src_version}.tar.gz" | awk '{ print $1 }'`
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178 |
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179 | if test $size -lt 100
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180 | then
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181 | rm -f "samhain-${src_version}.tar.gz"
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182 | printFATAL "failed: $command $location"
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183 | else
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184 | printLOG "Downloaded to samhain-${src_version}.tar.gz (${size} kB)"
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185 | fi
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186 |
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187 | files=`gunzip -c "samhain-${src_version}.tar.gz" | tar -tvf - 2>/dev/null`
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188 | sig=`echo $files | egrep ' samhain.*tar\.gz\.asc$' 2>/dev/null`
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189 | sig_version=`echo $files | egrep ' samhain.*tar\.gz\.asc$' 2>/dev/null | sed 's/.*samhain\-//g' | sed 's/\.tar\.gz\.asc//g'`
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190 | if test x"$sig" = x
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191 | then
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192 | rm -f "samhain-${src_version}.tar.gz"
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193 | printFATAL "downloaded file does not contain a PGP signature"
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194 | fi
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195 |
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196 | if test x"${sig_version}" = x
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197 | then
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198 | rm -f "samhain-${src_version}.tar.gz"
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199 | printFATAL "cannot determine samhain version from downloaded file"
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200 | fi
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201 |
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202 | if test x"${src_version}" != xcurrent
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203 | then
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204 | if test x"${src_version}" != x"${sig_version}"
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205 | then
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206 | rm -f "samhain-${src_version}.tar.gz"
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207 | printFATAL "downloaded version (${sig_version}) != requested version (${src_version})"
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208 | fi
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209 | fi
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210 |
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211 | printINFO "Source in tarball is version ${sig_version}"
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212 | printINFO "Unpacking to ${basedir}/source"
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213 |
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214 | cd "${tmpD}" || {
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215 | rm -f "${basedir}/tmp/samhain-${src_version}.tar.gz"
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216 | printFATAL "could not cd to ${tmpD}"
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217 | }
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218 |
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219 | gunzip -c "${basedir}/tmp/samhain-${src_version}.tar.gz" | tar -xf -
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220 |
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221 | rm -f "${basedir}/tmp/samhain-${src_version}.tar.gz"
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222 |
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223 | if test -f "samhain-${sig_version}.tar.gz"
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224 | then
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225 | if test -f "samhain-${sig_version}.tar.gz.asc"
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226 | then
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227 | :
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228 | else
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229 | printFATAL "not found in source: PGP signature samhain-${sig_version}.tar.gz.asc"
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230 | fi
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231 | else
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232 | printFATAL "not found in source: samhain-${sig_version}.tar.gz"
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233 | fi
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234 |
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235 |
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236 | printINFO "Checking PGP signature"
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237 | sig_lines=`(LANG="C"; gpg --status-fd 1 --verify "samhain-${sig_version}.tar.gz.asc" "samhain-${sig_version}.tar.gz" 2>/dev/null)`
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238 | sig_ok=`echo ${sig_lines} | grep 'GOODSIG'`
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239 |
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240 | sig_nokey=`echo ${sig_lines} | grep 'NO_PUBKEY'`
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241 |
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242 | if test x"${sig_nokey}" != x
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243 | then
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244 | printWARNING "Public key (ID 0F571F6C) not found, trying to import it."
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245 | gpg --import ${basedir}/private/0F571F6C.asc 2>&5
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246 | sig_ok=`(LANG="C"; gpg --status-fd 1 --verify "samhain-${sig_version}.tar.gz.asc" "samhain-${sig_version}.tar.gz" 2>/dev/null | grep 'GOODSIG')`
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247 | fi
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248 |
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249 | if test x"${sig_ok}" = x
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250 | then
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251 | (LANG="C"; gpg --verify "samhain-${sig_version}.tar.gz.asc" "samhain-${sig_version}.tar.gz")
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252 | printFATAL "no good signature"
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253 | fi
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254 |
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255 | cp "samhain-${sig_version}.tar.gz" "samhain-${sig_version}.tar.gz.asc" \
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256 | ${basedir}/source/ || \
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257 | printFATAL "failed: cp samhain-${sig_version}.tar.gz samhain-${sig_version}.tar.gz.asc ${basedir}/source/"
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258 |
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259 | printLOG "Installed samhain source (version=${sig_version})"
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260 |
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261 | return 0
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262 | }
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