fwolf /
fwlib
| @@ 80-111 (lines=32) @@ | ||
| 77 | * @return string |
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| 78 | * @see $sCacheRule |
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| 79 | */ |
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| 80 | protected function CacheFilePathSec($rule, $key) { |
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| 81 | $i_len = 2; |
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| 82 | ||
| 83 | if ($i_len > strlen($rule)) |
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| 84 | return ''; |
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| 85 | ||
| 86 | $i = intval($rule{1}); |
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| 87 | if (1 == $rule{0}) { |
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| 88 | // md5 from start |
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| 89 | $i_start = $i_len * $i; |
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| 90 | $s_seed = md5($key); |
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| 91 | } elseif (2 == $rule{0}) { |
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| 92 | // md5 from end |
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| 93 | $i_start = -1 * $i_len * ($i + 1); |
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| 94 | $s_seed = md5($key); |
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| 95 | } elseif (3 == $rule{0}) { |
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| 96 | // raw from start |
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| 97 | $i_start = $i_len * $i; |
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| 98 | $s_seed = $key; |
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| 99 | } elseif (4 == $rule{0}) { |
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| 100 | // raw from end |
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| 101 | $i_start = -1 * $i_len * ($i + 1); |
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| 102 | $s_seed = $key; |
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| 103 | } elseif (5 == $rule{0}) { |
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| 104 | // crc32 |
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| 105 | if (3 < $i) |
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| 106 | $i = $i % 3; |
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| 107 | $i_start = $i_len * $i; |
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| 108 | $s_seed = hash('crc32', $key); |
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| 109 | } |
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| 110 | return(substr($s_seed, $i_start, 2)); |
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| 111 | } // end of func CacheFilePathSec |
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| 112 | ||
| 113 | ||
| 114 | /** |
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| @@ 195-226 (lines=32) @@ | ||
| 192 | * @return string |
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| 193 | * @see $sCacheRule |
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| 194 | */ |
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| 195 | protected function FilePathSec($rule, $key) { |
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| 196 | $i_len = 2; |
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| 197 | ||
| 198 | if ($i_len > strlen($rule)) |
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| 199 | return ''; |
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| 200 | ||
| 201 | $i = intval($rule{1}); |
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| 202 | if (1 == $rule{0}) { |
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| 203 | // md5 from start |
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| 204 | $i_start = $i_len * $i; |
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| 205 | $s_seed = md5($key); |
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| 206 | } elseif (2 == $rule{0}) { |
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| 207 | // md5 from end |
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| 208 | $i_start = -1 * $i_len * ($i + 1); |
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| 209 | $s_seed = md5($key); |
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| 210 | } elseif (3 == $rule{0}) { |
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| 211 | // raw from start |
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| 212 | $i_start = $i_len * $i; |
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| 213 | $s_seed = $key; |
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| 214 | } elseif (4 == $rule{0}) { |
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| 215 | // raw from end |
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| 216 | $i_start = -1 * $i_len * ($i + 1); |
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| 217 | $s_seed = $key; |
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| 218 | } elseif (5 == $rule{0}) { |
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| 219 | // crc32 |
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| 220 | if (3 < $i) |
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| 221 | $i = $i % 3; |
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| 222 | $i_start = $i_len * $i; |
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| 223 | $s_seed = hash('crc32', $key); |
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| 224 | } |
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| 225 | return(substr($s_seed, $i_start, 2)); |
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| 226 | } // end of func FilePathSec |
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| 227 | ||
| 228 | ||
| 229 | /** |
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