1 | <?php |
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2 | /** |
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3 | * PEAR_Installer_Role_Cfg |
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4 | * |
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5 | * PHP versions 4 and 5 |
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6 | * |
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7 | * @category pear |
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8 | * @package PEAR |
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9 | * @author Greg Beaver <cellog@php.net> |
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10 | * @copyright 2007-2009 The Authors |
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11 | * @license http://opensource.org/licenses/bsd-license.php New BSD License |
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12 | * @version CVS: $Id: Cfg.php 313023 2011-07-06 19:17:11Z dufuz $ |
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13 | * @link http://pear.php.net/package/PEAR |
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14 | * @since File available since Release 1.7.0 |
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15 | */ |
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16 | |
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17 | /** |
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18 | * @category pear |
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19 | * @package PEAR |
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20 | * @author Greg Beaver <cellog@php.net> |
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21 | * @copyright 2007-2009 The Authors |
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22 | * @license http://opensource.org/licenses/bsd-license.php New BSD License |
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23 | * @version Release: 1.9.4 |
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24 | * @link http://pear.php.net/package/PEAR |
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25 | * @since Class available since Release 1.7.0 |
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26 | */ |
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27 | class PEAR_Installer_Role_Cfg extends PEAR_Installer_Role_Common |
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28 | { |
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29 | /** |
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30 | * @var PEAR_Installer |
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31 | */ |
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32 | var $installer; |
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33 | |
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34 | /** |
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35 | * the md5 of the original file |
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36 | * |
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37 | * @var unknown_type |
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38 | */ |
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39 | var $md5 = null; |
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40 | |
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41 | /** |
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42 | * Do any unusual setup here |
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43 | * @param PEAR_Installer |
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44 | * @param PEAR_PackageFile_v2 |
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45 | * @param array file attributes |
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46 | * @param string file name |
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47 | */ |
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48 | function setup(&$installer, $pkg, $atts, $file) |
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49 | { |
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50 | $this->installer = &$installer; |
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51 | $reg = &$this->installer->config->getRegistry(); |
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52 | $package = $reg->getPackage($pkg->getPackage(), $pkg->getChannel()); |
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53 | if ($package) { |
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54 | $filelist = $package->getFilelist(); |
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55 | if (isset($filelist[$file]) && isset($filelist[$file]['md5sum'])) { |
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56 | $this->md5 = $filelist[$file]['md5sum']; |
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57 | } |
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58 | } |
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59 | } |
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60 | |
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61 | function processInstallation($pkg, $atts, $file, $tmp_path, $layer = null) |
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62 | { |
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63 | $test = parent::processInstallation($pkg, $atts, $file, $tmp_path, $layer); |
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64 | if (@file_exists($test[2]) && @file_exists($test[3])) { |
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65 | $md5 = md5_file($test[2]); |
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66 | // configuration has already been installed, check for mods |
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67 | if ($md5 !== $this->md5 && $md5 !== md5_file($test[3])) { |
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68 | // configuration has been modified, so save our version as |
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69 | // configfile-version |
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70 | $old = $test[2]; |
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71 | $test[2] .= '.new-' . $pkg->getVersion(); |
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72 | // backup original and re-install it |
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73 | PEAR::pushErrorHandling(PEAR_ERROR_RETURN); |
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74 | $tmpcfg = $this->config->get('temp_dir'); |
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75 | $newloc = System::mkdir(array('-p', $tmpcfg)); |
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76 | if (!$newloc) { |
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77 | // try temp_dir |
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78 | $newloc = System::mktemp(array('-d')); |
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79 | if (!$newloc || PEAR::isError($newloc)) { |
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80 | PEAR::popErrorHandling(); |
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81 | return PEAR::raiseError('Could not save existing configuration file '. |
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82 | $old . ', unable to install. Please set temp_dir ' . |
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83 | 'configuration variable to a writeable location and try again'); |
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84 | } |
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85 | } else { |
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86 | $newloc = $tmpcfg; |
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87 | } |
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88 | |
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89 | $temp_file = $newloc . DIRECTORY_SEPARATOR . uniqid('savefile'); |
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90 | if (!@copy($old, $temp_file)) { |
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91 | PEAR::popErrorHandling(); |
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92 | return PEAR::raiseError('Could not save existing configuration file '. |
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93 | $old . ', unable to install. Please set temp_dir ' . |
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94 | 'configuration variable to a writeable location and try again'); |
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95 | } |
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96 | |
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97 | PEAR::popErrorHandling(); |
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98 | $this->installer->log(0, "WARNING: configuration file $old is being installed as $test[2], you should manually merge in changes to the existing configuration file"); |
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99 | $this->installer->addFileOperation('rename', array($temp_file, $old, false)); |
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100 | $this->installer->addFileOperation('delete', array($temp_file)); |
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101 | } |
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102 | } |
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103 | |
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104 | return $test; |
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105 | } |
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106 | } |
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