Total Complexity | 54 |
Total Lines | 567 |
Duplicated Lines | 0 % |
Changes | 0 |
Complex classes like WordPoints_Extension_Upgrader often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use WordPoints_Extension_Upgrader, and based on these observations, apply Extract Interface, too.
1 | <?php |
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20 | class WordPoints_Extension_Upgrader extends WordPoints_Module_Installer { |
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21 | |||
22 | /** |
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23 | * Whether we are performing a bulk upgrade. |
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24 | * |
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25 | * @since 2.4.0 |
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26 | * |
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27 | * @var bool |
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28 | */ |
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29 | protected $bulk = false; |
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30 | |||
31 | /** |
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32 | * Whether the upgrade routine bailed out early. |
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33 | * |
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34 | * @since 2.4.0 |
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35 | * |
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36 | * @var bool |
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37 | */ |
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38 | protected $bailed_early = false; |
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39 | |||
40 | /** |
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41 | * The extension server API being used for the extension currently being updated. |
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42 | * |
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43 | * @since 2.5.0 |
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44 | * |
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45 | * @var WordPoints_Extension_Server_APII |
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46 | */ |
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47 | protected $wordpoints_extension_api; |
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48 | |||
49 | /** |
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50 | * The extension server API data for the extension currently being updated. |
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51 | * |
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52 | * @since 2.5.0 |
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53 | * |
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54 | * @var WordPoints_Extension_Server_API_Extension_DataI |
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55 | */ |
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56 | protected $wordpoints_extension_data; |
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57 | |||
58 | /** |
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59 | * Sets up the strings for an extension upgrade. |
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60 | * |
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61 | * @since 2.4.0 |
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62 | */ |
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63 | protected function upgrade_strings() { |
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64 | |||
65 | $upgrade_strings = array( |
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66 | 'up_to_date' => esc_html__( 'The extension is at the latest version.', 'wordpoints' ), |
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67 | 'no_package' => esc_html__( 'Update package not available.', 'wordpoints' ), |
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68 | 'no_server' => esc_html__( 'That extension cannot be updated, because there is no server specified to receive updates through.', 'wordpoints' ), |
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69 | 'api_not_found' => esc_html__( 'That extension cannot be updated, because there is no API installed that can communicate with that server.', 'wordpoints' ), |
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70 | 'api_updates_not_supported' => esc_html__( 'That extension cannot be updated, because the API used to communicate with that server does not support updates.', 'wordpoints' ), |
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71 | // translators: Update package URL. |
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72 | 'downloading_package' => sprintf( esc_html__( 'Downloading update from %s…', 'wordpoints' ), '<span class="code">%s</span>' ), |
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73 | 'verifying_package' => esc_html__( 'Verifying the update…', 'wordpoints' ), |
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74 | // translators: Support forums link. |
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75 | 'verifying_package_failed' => wp_kses_data( sprintf( __( 'Verifying the update failed. The update was not installed, because the package may have been modified by an attacker. Please <a href="%s">report this failure</a>.', 'wordpoints' ), 'https://wordpress.org/support/plugin/wordpoints' ) ), |
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76 | 'unpack_package' => esc_html__( 'Unpacking the update…', 'wordpoints' ), |
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77 | 'remove_old' => esc_html__( 'Removing the old version of the extension…', 'wordpoints' ), |
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78 | 'remove_old_failed' => esc_html__( 'Could not remove the old extension.', 'wordpoints' ), |
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79 | 'process_failed' => esc_html__( 'Extension update failed.', 'wordpoints' ), |
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80 | 'process_success' => esc_html__( 'Extension updated successfully.', 'wordpoints' ), |
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81 | 'not_installed' => esc_html__( 'That extension cannot be updated, because it is not installed.', 'wordpoints' ), |
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82 | ); |
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83 | |||
84 | $this->strings = array_merge( $this->strings, $upgrade_strings ); |
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85 | } |
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86 | |||
87 | /** |
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88 | * Upgrades an extension. |
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89 | * |
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90 | * @since 2.4.0 |
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91 | * |
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92 | * @param string $extension_file Basename path to the extension file. |
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93 | * @param array $args { |
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94 | * Optional arguments. |
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95 | * |
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96 | * @type bool $clear_update_cache Whether the to clear the update cache. |
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97 | * The default is true. |
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98 | * } |
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99 | * |
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100 | * @return bool|WP_Error True on success, false or a WP_Error on failure. |
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101 | */ |
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102 | public function upgrade( $extension_file, $args = array() ) { |
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103 | |||
104 | $args = $this->before_upgrades( $args ); |
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105 | $result = $this->do_upgrade( $extension_file ); |
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106 | $this->after_upgrades( $extension_file, $args ); |
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107 | |||
108 | if ( ! $result || is_wp_error( $result ) ) { |
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109 | return $result; |
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110 | } |
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111 | |||
112 | return true; |
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113 | } |
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114 | |||
115 | /** |
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116 | * Performs a bulk upgrade. |
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117 | * |
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118 | * @since 2.4.0 |
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119 | * |
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120 | * @param string[] $extensions Array of basename paths to the extensions. |
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121 | * @param array $args { |
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122 | * |
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123 | * @type bool $clear_update_cache Whether the to clear the update cache. |
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124 | * Default is true. |
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125 | * } |
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126 | * |
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127 | * @return array|false The result of each update, indexed by extension, or false if |
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128 | * unable to perform the upgrades. |
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129 | */ |
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130 | public function bulk_upgrade( $extensions, $args = array() ) { |
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131 | |||
132 | $this->bulk = true; |
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133 | |||
134 | $args = $this->before_upgrades( $args ); |
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135 | |||
136 | $this->skin->header(); |
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137 | |||
138 | // Connect to the Filesystem first. |
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139 | if ( ! $this->fs_connect( array( WP_CONTENT_DIR, wordpoints_extensions_dir() ) ) ) { |
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140 | |||
141 | $this->skin->footer(); |
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142 | return false; |
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143 | } |
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144 | |||
145 | $this->skin->bulk_header(); |
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146 | |||
147 | $this->maybe_start_maintenance_mode( $extensions ); |
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148 | |||
149 | $results = array(); |
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150 | |||
151 | $this->update_count = count( $extensions ); |
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152 | $this->update_current = 0; |
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153 | |||
154 | foreach ( $extensions as $extension ) { |
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155 | |||
156 | $this->update_current++; |
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157 | |||
158 | $results[ $extension ] = $this->do_upgrade( $extension ); |
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159 | |||
160 | // Prevent credentials auth screen from displaying multiple times. |
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161 | if ( false === $results[ $extension ] && ! $this->bailed_early ) { |
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162 | break; |
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163 | } |
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164 | } |
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165 | |||
166 | $this->maintenance_mode( false ); |
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167 | |||
168 | $this->skin->bulk_footer(); |
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169 | $this->skin->footer(); |
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170 | |||
171 | $this->after_upgrades( $extensions, $args ); |
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172 | |||
173 | return $results; |
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174 | |||
175 | } // End public function bulk_upgrade(). |
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176 | |||
177 | /** |
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178 | * Sets up before running the upgrades. |
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179 | * |
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180 | * @since 2.4.0 |
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181 | * |
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182 | * @param array $args The arguments passed to the upgrader. |
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183 | * |
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184 | * @return array The parsed upgrader arguments. |
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185 | */ |
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186 | protected function before_upgrades( $args ) { |
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187 | |||
188 | $args = wp_parse_args( $args, array( 'clear_update_cache' => true ) ); |
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189 | |||
190 | $this->init(); |
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191 | $this->upgrade_strings(); |
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192 | |||
193 | add_filter( 'upgrader_clear_destination', array( $this, 'delete_old_extension' ), 10, 4 ); |
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194 | add_filter( 'upgrader_source_selection', array( $this, 'check_package' ) ); |
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195 | add_filter( 'upgrader_source_selection', array( $this, 'correct_extension_dir_name' ), 10, 4 ); |
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196 | add_filter( 'upgrader_pre_download', array( $this, 'verify_package_signature' ), 10, 3 ); |
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197 | add_filter( 'upgrader_pre_install', array( $this, 'deactivate_extension_before_upgrade' ), 10, 2 ); |
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198 | |||
199 | return $args; |
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200 | } |
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201 | |||
202 | /** |
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203 | * Upgrades an extension. |
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204 | * |
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205 | * This is the real meat of the upgrade functions. |
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206 | * |
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207 | * @since 2.4.0 |
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208 | * |
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209 | * @param string $extension_file Basename path to the extension file. |
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210 | * |
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211 | * @return bool|array|WP_Error Returns true or an array on success, false or a |
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212 | * WP_Error on failure. |
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213 | */ |
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214 | protected function do_upgrade( $extension_file ) { |
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215 | |||
216 | $this->bailed_early = false; |
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217 | |||
218 | $extensions = wordpoints_get_modules(); |
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219 | |||
220 | if ( ! isset( $extensions[ $extension_file ] ) ) { |
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221 | $this->bail_early( 'not_installed' ); |
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222 | return false; |
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223 | } |
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224 | |||
225 | $extension_data = $extensions[ $extension_file ]; |
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226 | |||
227 | if ( $this->skin instanceof WordPoints_Extension_Upgrader_Skin_Bulk ) { |
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228 | $this->skin->set_extension( $extension_file ); |
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229 | } |
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230 | |||
231 | if ( ! wordpoints_get_extension_updates()->has_update( $extension_file ) ) { |
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232 | $this->bail_early( 'up_to_date', 'feedback' ); |
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233 | return true; |
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234 | } |
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235 | |||
236 | $server = wordpoints_get_server_for_extension( $extension_data ); |
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237 | |||
238 | if ( ! $server ) { |
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239 | $this->bail_early( 'no_server' ); |
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240 | return false; |
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241 | } |
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242 | |||
243 | $api = $server->get_api(); |
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244 | |||
245 | if ( false === $api ) { |
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246 | $this->bail_early( 'api_not_found' ); |
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247 | return false; |
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248 | } |
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249 | |||
250 | if ( ! $api instanceof WordPoints_Extension_Server_API_Updates_InstallableI ) { |
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251 | $this->bail_early( 'api_updates_not_supported' ); |
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252 | return false; |
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253 | } |
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254 | |||
255 | $extension_data = new WordPoints_Extension_Server_API_Extension_Data( |
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256 | $extension_data['ID'] |
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257 | , $server |
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258 | ); |
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259 | |||
260 | $this->wordpoints_extension_api = $api; |
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261 | $this->wordpoints_extension_data = $extension_data; |
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262 | |||
263 | return $this->run( |
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264 | array( |
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265 | 'package' => $api->get_extension_package_url( $extension_data ), |
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266 | 'destination' => wordpoints_extensions_dir(), |
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267 | 'clear_destination' => true, |
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268 | 'clear_working' => true, |
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269 | 'is_multi' => $this->bulk, |
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270 | 'hook_extra' => array( |
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271 | 'wordpoints_extension' => $extension_file, |
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272 | ), |
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273 | ) |
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274 | ); |
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275 | |||
276 | } // End protected function do_upgrade(). |
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277 | |||
278 | /** |
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279 | * Cleans up after the upgrades. |
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280 | * |
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281 | * @since 2.4.0 |
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282 | * |
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283 | * @param string|string[] $extensions The extension(s) being upgraded. |
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284 | * @param array $args The arguments passed to the upgrader. |
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285 | */ |
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286 | protected function after_upgrades( $extensions, $args ) { |
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287 | |||
288 | remove_filter( 'upgrader_source_selection', array( $this, 'check_package' ) ); |
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289 | remove_filter( 'upgrader_source_selection', array( $this, 'correct_extension_dir_name' ) ); |
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290 | remove_filter( 'upgrader_clear_destination', array( $this, 'delete_old_extension' ) ); |
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291 | remove_filter( 'upgrader_pre_download', array( $this, 'verify_package_signature' ) ); |
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292 | remove_filter( 'upgrader_pre_install', array( $this, 'deactivate_extension_before_upgrade' ) ); |
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293 | |||
294 | if ( ! $this->bulk ) { |
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295 | if ( ! $this->skin->result || is_wp_error( $this->skin->result ) ) { |
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296 | return; |
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297 | } |
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298 | } |
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299 | |||
300 | // Force refresh of extension update cache. |
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301 | wordpoints_clean_extensions_cache( $args['clear_update_cache'] ); |
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302 | |||
303 | $details = array( |
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304 | 'action' => 'update', |
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305 | 'type' => 'wordpoints_extension', |
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306 | 'bulk' => $this->bulk, |
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307 | ); |
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308 | |||
309 | /** |
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310 | * This action is documented in /wp-admin/includes/class-wp-upgrader.php. |
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311 | */ |
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312 | do_action( 'upgrader_process_complete', $this, $details, $extensions ); // WPCS: prefix OK. |
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313 | } |
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314 | |||
315 | /** |
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316 | * Bail early before finishing a process normally. |
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317 | * |
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318 | * @since 2.4.0 |
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319 | * |
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320 | * @param string $message Slug for the message to show the user. |
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321 | * @param string $type The type of message, 'error' (default), or 'feedback'. |
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322 | */ |
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323 | protected function bail_early( $message, $type = 'error' ) { |
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324 | |||
325 | $this->bailed_early = true; |
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326 | |||
327 | $this->skin->before(); |
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328 | $this->skin->set_result( false ); |
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329 | |||
330 | if ( 'feedback' === $type ) { |
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331 | $this->skin->feedback( $message ); |
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332 | } else { |
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333 | $this->skin->error( $message ); |
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334 | } |
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335 | |||
336 | $this->skin->after(); |
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337 | } |
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338 | |||
339 | /** |
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340 | * Conditionally starts maintenance mode, only if necessary. |
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341 | * |
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342 | * Used when performing bulk updates. |
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343 | * |
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344 | * Only start maintenance mode if: |
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345 | * - running Multisite and there are one or more extensions specified, OR |
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346 | * - an extension with an update available is currently active. |
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347 | * |
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348 | * @since 2.4.0 |
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349 | * |
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350 | * @param string[] $extensions The extensions being upgraded in bulk. |
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351 | */ |
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352 | public function maybe_start_maintenance_mode( $extensions ) { |
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353 | |||
354 | if ( is_multisite() && ! empty( $extensions ) ) { |
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355 | |||
356 | $this->maintenance_mode( true ); |
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357 | |||
358 | } else { |
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359 | |||
360 | $updates = wordpoints_get_extension_updates(); |
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361 | |||
362 | foreach ( $extensions as $extension ) { |
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363 | |||
364 | if ( |
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365 | is_wordpoints_module_active( $extension ) |
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366 | && $updates->has_update( $extension ) |
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367 | ) { |
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368 | $this->maintenance_mode( true ); |
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369 | break; |
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370 | } |
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371 | } |
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372 | } |
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373 | } |
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374 | |||
375 | /** |
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376 | * Makes sure an extension is inactive before it is upgraded. |
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377 | * |
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378 | * @since 2.4.0 |
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379 | * |
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380 | * @WordPress\filter upgrader_pre_install Added by self::upgrade(). |
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381 | * |
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382 | * @param bool|WP_Error $return True if we should do the upgrade, a WP_Error otherwise. |
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383 | * @param array $data Data about the upgrade: what extension is being upgraded. |
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384 | * |
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385 | * @return bool|WP_Error A WP_Error on failure, otherwise nothing. |
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386 | */ |
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387 | public function deactivate_extension_before_upgrade( $return, $data ) { |
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388 | |||
389 | if ( is_wp_error( $return ) ) { |
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390 | return $return; |
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391 | } |
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392 | |||
393 | if ( empty( $data['wordpoints_extension'] ) ) { |
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394 | return new WP_Error( 'bad_request', $this->strings['bad_request'] ); |
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395 | } |
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396 | |||
397 | if ( is_wordpoints_module_active( $data['wordpoints_extension'] ) ) { |
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398 | |||
399 | // Deactivate the extension silently (the actions won't be fired). |
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400 | wordpoints_deactivate_modules( array( $data['wordpoints_extension'] ), true ); |
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401 | } |
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402 | |||
403 | return $return; |
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404 | } |
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405 | |||
406 | /** |
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407 | * Ensures that an extension folder will have the correct name. |
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408 | * |
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409 | * @since 2.4.0 |
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410 | * |
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411 | * @WordPress\filter upgrader_source_selection Added by self::upgrade(). |
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412 | * |
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413 | * @param string $source The path to the extension source. |
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414 | * @param array $remote_source The remote source of the extension. |
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415 | * @param WP_Upgrader $upgrader The upgrader instance. |
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416 | * @param array $data Data about the upgrade. |
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417 | * |
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418 | * @return string The extension folder. |
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419 | */ |
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420 | public function correct_extension_dir_name( $source, $remote_source, $upgrader, $data ) { |
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448 | } |
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449 | |||
450 | /** |
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451 | * Deletes the old extension before installing the new one. |
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452 | * |
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453 | * @since 2.4.0 |
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454 | * |
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455 | * @WordPress\filter upgrader_clear_destination Added by self::upgrade() and |
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456 | * self::bulk_upgrade(). |
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457 | * |
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458 | * @param true|WP_Error $removed Whether the destination folder has been removed. |
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459 | * @param string $local_destination The local path to the destination folder. |
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460 | * @param string $remote_destination The remote path to the destination folder. |
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461 | * @param array $data Data for the upgrade: what extension is being upgraded. |
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462 | * |
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463 | * @return true|WP_Error True on success, a WP_Error on failure. |
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464 | */ |
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465 | public function delete_old_extension( $removed, $local_destination, $remote_destination, $data ) { |
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466 | |||
467 | global $wp_filesystem; |
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468 | |||
469 | if ( is_wp_error( $removed ) ) { |
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470 | return $removed; |
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471 | } |
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472 | |||
473 | if ( empty( $data['wordpoints_extension'] ) ) { |
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474 | return new WP_Error( 'bad_request', $this->strings['bad_request'] ); |
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475 | } |
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476 | |||
477 | $extensions_dir = $wp_filesystem->find_folder( wordpoints_extensions_dir() ); |
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478 | $this_extension_dir = trailingslashit( dirname( $extensions_dir . $data['wordpoints_extension'] ) ); |
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479 | |||
480 | // Make sure it hasn't already been removed somehow. |
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481 | if ( ! $wp_filesystem->exists( $this_extension_dir ) ) { |
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482 | return $removed; |
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483 | } |
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484 | |||
485 | /* |
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486 | * If the extension is in its own directory, recursively delete the directory. |
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487 | * Do a base check on if the extension includes the directory separator AND that |
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488 | * it's not the root extensions folder. If not, just delete the single file. |
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489 | */ |
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490 | if ( strpos( $data['wordpoints_extension'], '/' ) && $this_extension_dir !== $extensions_dir ) { |
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491 | $deleted = $wp_filesystem->delete( $this_extension_dir, true ); |
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492 | } else { |
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493 | $deleted = $wp_filesystem->delete( $extensions_dir . $data['wordpoints_extension'] ); |
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494 | } |
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495 | |||
496 | if ( ! $deleted ) { |
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497 | return new WP_Error( 'remove_old_failed', $this->strings['remove_old_failed'] ); |
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498 | } |
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499 | |||
500 | return true; |
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501 | } |
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502 | |||
503 | /** |
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504 | * Verifies the signature of the update package before unpacking it. |
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505 | * |
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506 | * @since 2.5.0 |
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507 | * |
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508 | * @WordPress\filter upgrader_pre_download Added by self::upgrade(). |
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509 | * |
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510 | * @param bool|WP_Error $return True if we should do the upgrade, a WP_Error |
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511 | * otherwise. |
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512 | * @param string $package The package URL. |
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513 | * @param WP_Upgrader $upgrader The upgrader. |
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514 | * |
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515 | * @return bool|WP_Error A WP_Error on failure, otherwise nothing. |
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516 | */ |
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517 | public function verify_package_signature( $return, $package, $upgrader ) { |
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587 | } |
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588 | |||
589 | } // End class WordPoints_Extension_Upgrader. |
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590 | |||
591 | // EOF |
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592 |