Total Complexity | 79 |
Total Lines | 655 |
Duplicated Lines | 0 % |
Changes | 0 |
Complex classes like Zip 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 Zip, and based on these observations, apply Extract Interface, too.
1 | <?php namespace Comodojo\Zip; |
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27 | class Zip implements Countable { |
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28 | |||
29 | public const SKIP_NONE = 'NONE'; |
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30 | |||
31 | public const SKIP_HIDDEN = 'HIDDEN'; |
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32 | |||
33 | public const SKIP_ALL = 'ALL'; |
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34 | |||
35 | public const SKIP_COMODOJO = 'COMODOJO'; |
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36 | |||
37 | protected const DEFAULT_MASK = 0777; |
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38 | |||
39 | /** |
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40 | * Select files to skip |
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41 | * |
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42 | * @var string |
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43 | */ |
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44 | private $skip_mode = self::SKIP_NONE; |
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45 | |||
46 | /** |
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47 | * Supported skip modes |
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48 | * |
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49 | * @var bool |
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50 | */ |
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51 | private $supported_skip_modes = ['NONE', 'HIDDEN', 'ALL', 'COMODOJO']; |
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52 | |||
53 | /** |
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54 | * Mask for the extraction folder (if it should be created) |
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55 | * |
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56 | * @var int |
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57 | */ |
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58 | private $mask = self::DEFAULT_MASK; |
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59 | |||
60 | /** |
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61 | * ZipArchive internal pointer |
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62 | * |
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63 | * @var ZipArchive |
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64 | */ |
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65 | private $zip_archive; |
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66 | |||
67 | /** |
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68 | * zip file name |
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69 | * |
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70 | * @var string |
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71 | */ |
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72 | private $zip_file; |
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73 | |||
74 | /** |
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75 | * zip file password (only for extract) |
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76 | * |
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77 | * @var string |
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78 | */ |
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79 | private $password; |
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80 | |||
81 | /** |
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82 | * Current base path |
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83 | * |
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84 | * @var string |
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85 | */ |
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86 | private $path; |
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87 | |||
88 | /** |
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89 | * Class constructor |
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90 | * |
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91 | * @param string $zip_file ZIP file name |
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92 | * |
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93 | * @throws ZipException |
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94 | */ |
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95 | public function __construct(string $zip_file) { |
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96 | |||
97 | if ( empty($zip_file) ) { |
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98 | throw new ZipException(StatusCodes::get(ZipArchive::ER_NOENT)); |
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99 | } |
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100 | |||
101 | $this->zip_file = $zip_file; |
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102 | |||
103 | } |
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104 | |||
105 | /** |
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106 | * Open a zip archive (static constructor) |
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107 | * |
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108 | * @param string $zip_file File name |
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109 | * |
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110 | * @return Zip |
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111 | * @throws ZipException |
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112 | */ |
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113 | public static function open(string $zip_file): Zip { |
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114 | |||
115 | try { |
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116 | |||
117 | $zip = new Zip($zip_file); |
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118 | $zip->setArchive(self::openZipFile($zip_file)); |
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119 | |||
120 | } catch (ZipException $ze) { |
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121 | throw $ze; |
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122 | } |
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123 | |||
124 | return $zip; |
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125 | |||
126 | } |
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127 | |||
128 | /** |
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129 | * Check a zip archive (static constructor) |
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130 | * |
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131 | * @param string $zip_file ZIP file name |
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132 | * |
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133 | * @return bool |
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134 | * @throws ZipException |
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135 | */ |
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136 | public static function check(string $zip_file): bool { |
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137 | |||
138 | try { |
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139 | |||
140 | $zip = self::openZipFile($zip_file, ZipArchive::CHECKCONS); |
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141 | $zip->close(); |
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142 | |||
143 | } catch (ZipException $ze) { |
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144 | throw $ze; |
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145 | } |
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146 | |||
147 | return true; |
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148 | |||
149 | } |
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150 | |||
151 | /** |
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152 | * Create a new zip archive (static constructor) |
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153 | * |
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154 | * @param string $zip_file ZIP file name |
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155 | * @param bool $overwrite Overwrite existing file (if any) |
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156 | * |
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157 | * @return Zip |
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158 | * @throws ZipException |
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159 | */ |
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160 | public static function create(string $zip_file, bool $overwrite = false): Zip { |
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161 | |||
162 | $overwrite = DataFilter::filterBoolean($overwrite); |
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163 | |||
164 | try { |
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165 | |||
166 | $zip = new Zip($zip_file); |
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167 | |||
168 | if ( $overwrite ) { |
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169 | $zip->setArchive( |
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170 | self::openZipFile( |
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171 | $zip_file, |
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172 | ZipArchive::CREATE | ZipArchive::OVERWRITE |
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173 | ) |
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174 | ); |
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175 | } else { |
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176 | $zip->setArchive( |
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177 | self::openZipFile($zip_file, ZipArchive::CREATE) |
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178 | ); |
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179 | } |
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180 | |||
181 | } catch (ZipException $ze) { |
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182 | throw $ze; |
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183 | } |
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184 | |||
185 | return $zip; |
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186 | |||
187 | } |
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188 | |||
189 | /** |
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190 | * Count the number of files in the archive |
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191 | * |
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192 | * @return int |
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193 | */ |
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194 | public function count(): int { |
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195 | return count($this->zip_archive); |
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196 | } |
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197 | |||
198 | /** |
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199 | * Set files to skip |
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200 | * |
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201 | * Supported skip modes: |
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202 | * Zip::SKIP_NONE - skip no files |
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203 | * Zip::SKIP_HIDDEN - skip hidden files |
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204 | * Zip::SKIP_ALL - skip HIDDEN + COMODOJO ghost files |
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205 | * Zip::SKIP_COMODOJO - skip comodojo ghost files |
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206 | * |
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207 | * @param string $mode Skip file mode |
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208 | * |
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209 | * @return Zip |
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210 | * @throws ZipException |
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211 | */ |
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212 | public function setSkipped(string $mode): Zip { |
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213 | |||
214 | $mode = strtoupper($mode); |
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215 | |||
216 | if ( !in_array($mode, $this->supported_skip_modes) ) { |
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217 | throw new ZipException("Unsupported skip mode: $mode"); |
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218 | } |
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219 | |||
220 | $this->skip_mode = $mode; |
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221 | |||
222 | return $this; |
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223 | |||
224 | } |
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225 | |||
226 | /** |
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227 | * Get current skip mode |
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228 | * |
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229 | * @return string |
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230 | */ |
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231 | public function getSkipped(): string { |
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232 | |||
233 | return $this->skip_mode; |
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234 | |||
235 | } |
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236 | |||
237 | /** |
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238 | * Set zip password |
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239 | * |
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240 | * @param string $password |
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241 | * |
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242 | * @return Zip |
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243 | */ |
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244 | public function setPassword(string $password): Zip { |
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245 | |||
246 | $this->password = $password; |
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247 | |||
248 | return $this; |
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249 | |||
250 | } |
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251 | |||
252 | /** |
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253 | * Get current zip password |
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254 | * |
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255 | * @return string |
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256 | */ |
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257 | public function getPassword(): ?string { |
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258 | |||
259 | return $this->password; |
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260 | |||
261 | } |
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262 | |||
263 | /** |
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264 | * Set current base path (to add relative files to zip archive) |
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265 | * |
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266 | * @param string|null $path |
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267 | * |
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268 | * @return Zip |
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269 | * @throws ZipException |
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270 | */ |
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271 | public function setPath(?string $path = null): Zip { |
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272 | |||
273 | if ( $path === null ) { |
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274 | $this->path = null; |
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275 | } else if ( !file_exists($path) ) { |
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276 | throw new ZipException("Not existent path: $path"); |
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277 | } else { |
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278 | $this->path = $path; |
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279 | } |
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280 | |||
281 | return $this; |
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282 | |||
283 | } |
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284 | |||
285 | /** |
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286 | * Get current base path |
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287 | * |
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288 | * @return string|null |
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289 | */ |
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290 | public function getPath(): ?string { |
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291 | |||
292 | return $this->path; |
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293 | |||
294 | } |
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295 | |||
296 | /** |
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297 | * Set the mask of the extraction folder |
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298 | * |
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299 | * @param int $mask Integer representation of the file mask |
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300 | * |
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301 | * @return Zip |
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302 | */ |
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303 | public function setMask(int $mask): Zip { |
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304 | |||
305 | $mask = filter_var($mask, FILTER_VALIDATE_INT, [ |
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306 | "options" => [ |
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307 | "max_range" => self::DEFAULT_MASK, |
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308 | "default" => self::DEFAULT_MASK |
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309 | ], |
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310 | 'flags' => FILTER_FLAG_ALLOW_OCTAL |
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311 | ]); |
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312 | $this->mask = $mask; |
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313 | |||
314 | return $this; |
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315 | |||
316 | } |
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317 | |||
318 | /** |
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319 | * Get current mask of the extraction folder |
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320 | * |
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321 | * @return int |
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322 | */ |
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323 | public function getMask(): int { |
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324 | |||
325 | return $this->mask; |
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326 | |||
327 | } |
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328 | |||
329 | /** |
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330 | * Set the current ZipArchive object |
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331 | * |
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332 | * @param ZipArchive $zip |
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333 | * |
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334 | * @return Zip |
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335 | */ |
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336 | public function setArchive(ZipArchive $zip): Zip { |
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337 | |||
338 | $this->zip_archive = $zip; |
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339 | |||
340 | return $this; |
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341 | |||
342 | } |
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343 | |||
344 | /** |
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345 | * Get current ZipArchive object |
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346 | * |
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347 | * @return ZipArchive|null |
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348 | */ |
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349 | public function getArchive(): ?ZipArchive { |
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350 | |||
351 | return $this->zip_archive; |
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352 | |||
353 | } |
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354 | |||
355 | /** |
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356 | * Get current zip file |
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357 | * |
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358 | * @return string |
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359 | */ |
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360 | public function getZipFile(): string { |
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361 | |||
362 | return $this->zip_file; |
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363 | |||
364 | } |
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365 | |||
366 | /** |
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367 | * Get the list of files in the archive as an array |
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368 | * |
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369 | * @return array |
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370 | * @throws ZipException |
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371 | */ |
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372 | public function listFiles(): array { |
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373 | |||
374 | $list = []; |
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375 | |||
376 | for ( $i = 0; $i < $this->zip_archive->numFiles; $i++ ) { |
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377 | |||
378 | $name = $this->zip_archive->getNameIndex($i); |
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379 | if ( $name === false ) { |
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380 | throw new ZipException(StatusCodes::get($this->zip_archive->status)); |
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381 | } |
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382 | $list[] = $name; |
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383 | |||
384 | } |
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385 | |||
386 | return $list; |
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387 | |||
388 | } |
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389 | |||
390 | /** |
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391 | * Extract files from zip archive |
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392 | * |
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393 | * @param string $destination Destination path |
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394 | * @param mixed $files (optional) a filename or an array of filenames |
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395 | * |
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396 | * @return bool |
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397 | * @throws ZipException |
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398 | */ |
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399 | public function extract(string $destination, $files = null): bool { |
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400 | |||
401 | if ( empty($destination) ) { |
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402 | throw new ZipException("Invalid destination path: $destination"); |
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403 | } |
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404 | |||
405 | if ( !file_exists($destination) ) { |
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406 | |||
407 | $omask = umask(0); |
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408 | $action = mkdir($destination, $this->mask, true); |
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409 | umask($omask); |
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410 | |||
411 | if ( $action === false ) { |
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412 | throw new ZipException("Error creating folder: $destination"); |
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413 | } |
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414 | |||
415 | } |
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416 | |||
417 | if ( !is_writable($destination) ) { |
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418 | throw new ZipException("Destination path $destination not writable"); |
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419 | } |
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420 | |||
421 | if ( is_array($files) && @sizeof($files) != 0 ) { |
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422 | $file_matrix = $files; |
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423 | } else { |
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424 | $file_matrix = $this->getArchiveFiles(); |
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425 | } |
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426 | |||
427 | if ( !empty($this->password) ) { |
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428 | $this->zip_archive->setPassword($this->password); |
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429 | } |
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430 | |||
431 | $extract = $this->zip_archive->extractTo($destination, $file_matrix); |
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432 | |||
433 | if ( $extract === false ) { |
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434 | throw new ZipException(StatusCodes::get($this->zip_archive->status)); |
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435 | } |
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436 | |||
437 | return true; |
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438 | |||
439 | } |
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440 | |||
441 | /** |
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442 | * Add files to zip archive |
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443 | * |
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444 | * @param mixed $file_name_or_array Filename to add or an array of filenames |
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445 | * @param bool $flatten_root_folder In case of directory, specify if root folder should be flatten or not |
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446 | * |
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447 | * @return Zip |
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448 | * @throws ZipException |
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449 | */ |
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450 | public function add($file_name_or_array, bool $flatten_root_folder = false): Zip { |
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451 | |||
452 | if ( empty($file_name_or_array) ) { |
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453 | throw new ZipException(StatusCodes::get(ZipArchive::ER_NOENT)); |
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454 | } |
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455 | |||
456 | $flatten_root_folder = DataFilter::filterBoolean($flatten_root_folder); |
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457 | |||
458 | try { |
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459 | |||
460 | if ( is_array($file_name_or_array) ) { |
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461 | foreach ( $file_name_or_array as $file_name ) { |
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462 | $this->addItem($file_name, $flatten_root_folder); |
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463 | } |
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464 | } else { |
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465 | $this->addItem($file_name_or_array, $flatten_root_folder); |
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466 | } |
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467 | |||
468 | } catch (ZipException $ze) { |
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469 | throw $ze; |
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470 | } |
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471 | |||
472 | return $this; |
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473 | |||
474 | } |
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475 | |||
476 | /** |
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477 | * Delete files from zip archive |
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478 | * |
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479 | * @param mixed $file_name_or_array Filename to delete or an array of filenames |
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480 | * |
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481 | * @return Zip |
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482 | * @throws ZipException |
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483 | */ |
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484 | public function delete($file_name_or_array): Zip { |
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485 | |||
486 | if ( empty($file_name_or_array) ) { |
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487 | throw new ZipException(StatusCodes::get(ZipArchive::ER_NOENT)); |
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488 | } |
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489 | |||
490 | try { |
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491 | |||
492 | if ( is_array($file_name_or_array) ) { |
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493 | foreach ( $file_name_or_array as $file_name ) { |
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494 | $this->deleteItem($file_name); |
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495 | } |
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496 | } else { |
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497 | $this->deleteItem($file_name_or_array); |
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498 | } |
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499 | |||
500 | } catch (ZipException $ze) { |
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501 | throw $ze; |
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502 | } |
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503 | |||
504 | return $this; |
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505 | |||
506 | } |
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507 | |||
508 | /** |
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509 | * Close the zip archive |
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510 | * |
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511 | * @return bool |
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512 | * @throws ZipException |
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513 | */ |
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514 | public function close(): bool { |
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515 | |||
516 | if ( $this->zip_archive->close() === false ) { |
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517 | throw new ZipException(StatusCodes::get($this->zip_archive->status)); |
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518 | } |
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519 | |||
520 | return true; |
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521 | |||
522 | } |
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523 | |||
524 | /** |
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525 | * Get a list of file contained in zip archive before extraction |
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526 | * |
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527 | * @return array |
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528 | */ |
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529 | private function getArchiveFiles(): array { |
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561 | |||
562 | } |
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563 | |||
564 | /** |
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565 | * Add item to zip archive |
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566 | * |
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567 | * @param string $file File to add (realpath) |
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568 | * @param bool $flatroot (optional) If true, source directory will be not included |
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569 | * @param string $base (optional) Base to record in zip file |
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570 | * @return void |
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571 | * @throws ZipException |
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572 | */ |
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573 | private function addItem( |
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574 | string $file, |
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575 | bool $flatroot = false, |
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576 | ?string $base = null |
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577 | ): void { |
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578 | |||
579 | $file = is_null($this->path) ? $file : $this->path."/$file"; |
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580 | $real_file = str_replace('\\', '/', realpath($file)); |
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581 | $real_name = basename($real_file); |
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582 | |||
583 | if ( !is_null($base) ) { |
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584 | |||
585 | if ( |
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586 | $real_name[0] == "." && |
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587 | in_array($this->skip_mode, ["HIDDEN", "ALL"]) |
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588 | ) { |
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589 | return; |
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590 | } |
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591 | |||
592 | if ( |
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593 | $real_name[0] == "." && |
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594 | @$real_name[1] == "_" && |
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595 | in_array($this->skip_mode, ["COMODOJO", "ALL"]) |
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596 | ) { |
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597 | return; |
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598 | } |
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599 | |||
600 | } |
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601 | |||
602 | if ( is_dir($real_file) ) { |
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603 | |||
604 | if ( !$flatroot ) { |
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605 | |||
606 | $folder_target = is_null($base) ? $real_name : $base.$real_name; |
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607 | $new_folder = $this->zip_archive->addEmptyDir($folder_target); |
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608 | if ( $new_folder === false ) { |
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609 | throw new ZipException(StatusCodes::get($this->zip_archive->status)); |
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610 | } |
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611 | |||
612 | } else { |
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613 | $folder_target = null; |
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614 | } |
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615 | |||
616 | foreach ( new DirectoryIterator($real_file) as $path ) { |
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617 | |||
618 | if ( $path->isDot() ) { |
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619 | continue; |
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620 | } |
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621 | |||
622 | $file_real = $path->getPathname(); |
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623 | $base = is_null($folder_target) ? null : ($folder_target."/"); |
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624 | |||
625 | try { |
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626 | $this->addItem($file_real, false, $base); |
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627 | } catch (ZipException $ze) { |
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628 | throw $ze; |
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629 | } |
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630 | |||
631 | } |
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632 | |||
633 | } else if ( is_file($real_file) ) { |
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634 | |||
635 | $file_target = is_null($base) ? $real_name : $base.$real_name; |
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636 | $add_file = $this->zip_archive->addFile($real_file, $file_target); |
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637 | if ( $add_file === false ) { |
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638 | throw new ZipException(StatusCodes::get($this->zip_archive->status)); |
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639 | } |
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640 | |||
641 | } else { |
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642 | return; |
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643 | } |
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644 | |||
645 | } |
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646 | |||
647 | /** |
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648 | * Delete item from zip archive |
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649 | * |
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650 | * @param string $file File to delete (zippath) |
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651 | * @return void |
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652 | * @throws ZipException |
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653 | */ |
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654 | private function deleteItem(string $file): void { |
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659 | } |
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660 | |||
661 | } |
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662 | |||
663 | /** |
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664 | * Open a zip file |
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665 | * |
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666 | * @param string $zip_file ZIP file name |
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667 | * @param int $flags ZipArchive::open flags |
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668 | * |
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669 | * @return ZipArchive |
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670 | * @throws ZipException |
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671 | */ |
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672 | private static function openZipFile(string $zip_file, int $flags = null): ZipArchive { |
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682 | |||
683 | } |
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684 | |||
685 | } |
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686 |