8000 feature #33003 [Filesystem] Add $suffix argument to tempnam() (jdufre… · symfony/symfony@7784d9f · GitHub
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feature #33003 [Filesystem] Add $suffix argument to tempnam() (jdufresne)
This PR was submitted for the 4.4 branch but it was merged into the 5.1-dev branch instead (closes #33003). Discussion ---------- [Filesystem] Add $suffix argument to tempnam() | Q | A | ------------- | --- | Branch? | 4.4 | Bug fix? | no | New feature? | yes | BC breaks? | no | Deprecations? | no | Tests pass? | yes | Fixed tickets | #33002 | License | MIT | Doc PR | symfony/symfony-docs#12108 **Description** The `tempnam()` interface was previously: ```php tempnam($dir, $prefix) ``` This adds a third argument, `$suffix`, that is appended to the filename after the random component. This defaults to `''` for backwards compatibility. This is quite useful when the temporary file is consumed for a specific purpose that expects a suffix. **Example** ```php $filesystem->tempnam('/tmp', 'prefix_', '.png'); ``` Would create a file like: `/tmp/prefix_abcd1234.png`. Commits ------- ef12069 [Filesystem] Add $suffix argument to tempnam()
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‎src/Symfony/Component/Filesystem/CHANGELOG.md‎

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@@ -10,6 +10,7 @@ CHANGELOG
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-----
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* support for passing a `null` value to `Filesystem::isAbsolutePath()` is deprecated and will be removed in 5.0
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* `tempnam()` now accepts a third argument `$suffix`.
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4.3.0
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-----

‎src/Symfony/Component/Filesystem/Filesystem.php‎

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@@ -584,15 +584,17 @@ public function isAbsolutePath(string $file)
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*
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* @param string $prefix The prefix of the generated temporary filename
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* Note: Windows uses only the first three characters of prefix
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* @param string $suffix The suffix of the generated temporary filename
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*
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* @return string The new temporary filename (with path), or throw an exception on failure
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*/
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public function tempnam(string $dir, string $prefix)
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public function tempnam(string $dir, string $prefix/*, string $suffix = ''*/)
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{
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$suffix = \func_num_args() > 2 ? func_get_arg(2) : '';
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list($scheme, $hierarchy) = $this->getSchemeAndHierarchy($dir);
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// If no scheme or scheme is "file" or "gs" (Google Cloud) create temp file in local filesystem
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if (null === $scheme || 'file' === $scheme || 'gs' === $scheme) {
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if ((null === $scheme || 'file' === $scheme || 'gs' === $scheme) && '' === $suffix) {
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$tmpFile = @tempnam($hierarchy, $prefix);
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// If tempnam failed or no scheme return the filename otherwise prepend the scheme
@@ -610,7 +612,7 @@ public function tempnam(string $dir, string $prefix)
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// Loop until we create a valid temp file or have reached 10 attempts
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for ($i = 0; $i < 10; ++$i) {
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// Create a unique filename
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$tmpFile = $dir.'/'.$prefix.uniqid(mt_rand(), true);
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$tmpFile = $dir.'/'.$prefix.uniqid(mt_rand(), true).$suffix;
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// Use fopen instead of file_exists as some streams do not support stat
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// Use mode 'x+' to atomically check existence and create to avoid a TOCTOU vulnerability

‎src/Symfony/Component/Filesystem/Tests/FilesystemTest.php‎

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@@ -1509,6 +1509,22 @@ public function testTempnamOnUnwritableFallsBackToSysTmp()
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@unlink($filename);
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}
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public function testTempnamWithSuffix()
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{
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$dirname = $this->workspace;
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$filename = $this->filesystem->tempnam($dirname, 'foo', '.bar');
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$this->assertStringEndsWith('.bar', $filename);
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$this->assertFileExists($filename);
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}
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public function testTempnamWithSuffix0()
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{
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$dirname = $this->workspace;
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$filename = $this->filesystem->tempnam($dirname, 'foo', '0');
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$this->assertStringEndsWith('0', $filename);
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$this->assertFileExists($filename);
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}
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public function testDumpFile()
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{
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$filename = $this->workspace.\DIRECTORY_SEPARATOR.'foo'.\DIRECTORY_SEPARATOR.'baz.txt';

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