Feat: message sending-forwarding #374
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,222 @@ | ||
| <?php | ||
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| declare(strict_types=1); | ||
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| namespace PhpList\Core\Domain\Common; | ||
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| use PhpList\Core\Domain\Configuration\Model\ConfigOption; | ||
| use PhpList\Core\Domain\Configuration\Service\Provider\ConfigProvider; | ||
| use Psr\Log\LoggerInterface; | ||
| use Throwable; | ||
|
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| class ExternalImageService | ||
| { | ||
| private string $externalCacheDir; | ||
|
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| public function __construct( | ||
| private readonly ConfigProvider $configProvider, | ||
| private readonly LoggerInterface $logger, | ||
| private readonly string $tempDir, | ||
| private readonly int $externalImageMaxAge, | ||
| private readonly int $externalImageMaxSize, | ||
| private readonly ?int $externalImageTimeout = 30, | ||
| ) { | ||
| $this->externalCacheDir = $this->tempDir . '/external_cache'; | ||
| } | ||
|
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| public function getFromCache(string $filename, int $messageId): ?string | ||
| { | ||
| $cacheFile = $this->generateLocalFileName($filename, $messageId); | ||
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| if (!is_file($cacheFile) || filesize($cacheFile) <= 64) { | ||
| return null; | ||
| } | ||
|
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| $content = file_get_contents($cacheFile); | ||
| if ($content === false) { | ||
| return null; | ||
| } | ||
|
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| return base64_encode($content); | ||
| } | ||
|
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| public function cache($filename, $messageId): bool | ||
| { | ||
| if (!$this->isCacheableUrl($filename)) { | ||
| return false; | ||
| } | ||
|
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| if (!$this->ensureCacheDirectory()) { | ||
| return false; | ||
| } | ||
|
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| $this->removeOldFilesInCache(); | ||
|
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| $cacheFileName = $this->generateLocalFileName($filename, $messageId); | ||
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| if (!file_exists($cacheFileName)) { | ||
| $cacheFileContent = null; | ||
|
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| if (function_exists('curl_init')) { | ||
| $cacheFileContent = $this->downloadUsingCurl($filename); | ||
| } | ||
|
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| if ($cacheFileContent === null) { | ||
| $cacheFileContent = $this->downloadUsingFileGetContent($filename); | ||
| } | ||
|
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| if ($this->externalImageMaxSize && (strlen($cacheFileContent) > $this->externalImageMaxSize)) { | ||
| $cacheFileContent = 'MAX_SIZE'; | ||
| } | ||
|
TatevikGr marked this conversation as resolved.
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| $this->writeCacheFile($cacheFileName, $cacheFileContent); | ||
|
TatevikGr marked this conversation as resolved.
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| } | ||
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| return $this->isValidCacheFile($cacheFileName); | ||
| } | ||
|
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| private function removeOldFilesInCache(): void | ||
| { | ||
| // phpcs:ignore Generic.PHP.NoSilencedErrors | ||
| $extCacheDirHandle = @opendir($this->externalCacheDir); | ||
| if (!$this->externalImageMaxAge || !$extCacheDirHandle) { | ||
| return; | ||
| } | ||
|
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| while (true) { | ||
| // phpcs:ignore Generic.PHP.NoSilencedErrors | ||
| $cacheFile = @readdir($extCacheDirHandle); | ||
|
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| if ($cacheFile === false) { | ||
| break; | ||
| } | ||
| // todo: make sure that this is what we need | ||
| if (!str_starts_with($cacheFile, '.')) { | ||
| // phpcs:ignore Generic.PHP.NoSilencedErrors | ||
| $cfmt = @filemtime($this->externalCacheDir . '/' . $cacheFile); | ||
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| if (is_numeric($cfmt) && ($cfmt > 0) && ((time() - $cfmt) > $this->externalImageMaxAge)) { | ||
| // phpcs:ignore Generic.PHP.NoSilencedErrors | ||
| @unlink($this->externalCacheDir . '/' . $cacheFile); | ||
| } | ||
| } | ||
| } | ||
| // phpcs:ignore Generic.PHP.NoSilencedErrors | ||
| @closedir($extCacheDirHandle); | ||
| } | ||
|
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| private function generateLocalFileName(string $filename, int $messageId): string | ||
| { | ||
| return $this->externalCacheDir | ||
| . '/' | ||
| . $messageId | ||
| . '_' | ||
| . preg_replace([ '~[\.][\.]+~Ui', '~[^\w\.]~Ui',], ['', '_'], $filename); | ||
| } | ||
|
Comment on lines
+109
to
+116
There was a problem hiding this comment. Strengthen filename sanitization against path traversal. The regex 🔎 Proposed fix private function generateLocalFileName(string $filename, int $messageId): string
{
- return $this->externalCacheDir
- . '/'
- . $messageId
- . '_'
- . preg_replace([ '~[\.][\.]+~Ui', '~[^\w\.]~Ui',], ['', '_'], $filename);
+ $sanitized = preg_replace('~[^\w\.-]~', '_', basename(parse_url($filename, PHP_URL_PATH)));
+ return $this->externalCacheDir . '/' . $messageId . '_' . $sanitized;
}🤖 Prompt for AI Agents |
||
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| private function downloadUsingCurl(string $filename): ?string | ||
| { | ||
| $cURLHandle = curl_init($filename); | ||
|
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| if ($cURLHandle !== false) { | ||
| curl_setopt($cURLHandle, CURLOPT_HTTPGET, true); | ||
| curl_setopt($cURLHandle, CURLOPT_HEADER, 0); | ||
| curl_setopt($cURLHandle, CURLOPT_RETURNTRANSFER, true); | ||
| curl_setopt($cURLHandle, CURLOPT_TIMEOUT, $this->externalImageTimeout); | ||
| curl_setopt($cURLHandle, CURLOPT_FOLLOWLOCATION, true); | ||
| curl_setopt($cURLHandle, CURLOPT_MAXREDIRS, 10); | ||
| curl_setopt($cURLHandle, CURLOPT_SSL_VERIFYPEER, false); | ||
|
coderabbitai[bot] marked this conversation as resolved.
Outdated
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| curl_setopt($cURLHandle, CURLOPT_FAILONERROR, true); | ||
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| $cacheFileContent = curl_exec($cURLHandle); | ||
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| $cURLErrNo = curl_errno($cURLHandle); | ||
| $cURLInfo = curl_getinfo($cURLHandle); | ||
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| curl_close($cURLHandle); | ||
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| if ($cURLErrNo != 0) { | ||
| $cacheFileContent = 'CURL_ERROR_' . $cURLErrNo; | ||
| } | ||
| if ($cURLInfo['http_code'] >= 400) { | ||
| $cacheFileContent = 'HTTP_CODE_' . $cURLInfo['http_code']; | ||
| } | ||
| } | ||
|
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| return $cacheFileContent ?? null; | ||
| } | ||
|
coderabbitai[bot] marked this conversation as resolved.
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| private function downloadUsingFileGetContent(string $filename): string | ||
| { | ||
| $remoteURLContext = stream_context_create([ | ||
| 'http' => [ | ||
| 'method' => 'GET', | ||
| 'timeout' => $this->externalImageTimeout, | ||
| 'max_redirects' => '10', | ||
| ] | ||
| ]); | ||
|
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| $cacheFileContent = file_get_contents($filename, false, $remoteURLContext); | ||
| if ($cacheFileContent === false) { | ||
| $cacheFileContent = 'FGC_ERROR'; | ||
| } | ||
|
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| return $cacheFileContent; | ||
| } | ||
|
TatevikGr marked this conversation as resolved.
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| private function isCacheableUrl($filename): bool | ||
| { | ||
| if (!(str_starts_with($filename, 'http')) | ||
| || str_contains($filename, '://' . $this->configProvider->getValue(ConfigOption::Website) . '/') | ||
| ) { | ||
| return false; | ||
|
Comment on lines
+168
to
+173
There was a problem hiding this comment. Guard
🛠️ Fix- if (!(str_starts_with($filename, 'http'))
- || str_contains($filename, '://' . $this->configProvider->getValue(ConfigOption::Website) . '/')
- ) {
+ $website = $this->configProvider->getValue(ConfigOption::Website) ?? '';
+ if (!(str_starts_with($filename, 'http'))
+ || ($website !== '' && str_contains($filename, '://' . $website . '/'))
+ ) {
return false;
}🤖 Prompt for AI Agents |
||
| } | ||
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| return true; | ||
| } | ||
|
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| private function ensureCacheDirectory(): bool | ||
| { | ||
|
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| if (!file_exists($this->externalCacheDir)) { | ||
| // phpcs:ignore Generic.PHP.NoSilencedErrors | ||
| @mkdir($this->externalCacheDir); | ||
| } | ||
|
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| if (!file_exists($this->externalCacheDir) || !is_writable($this->externalCacheDir)) { | ||
| return false; | ||
| } | ||
|
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| return true; | ||
| } | ||
|
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| private function isValidCacheFile(string $cacheFileName): bool | ||
| { | ||
| // phpcs:ignore Generic.PHP.NoSilencedErrors | ||
| if (file_exists($cacheFileName) && (@filesize($cacheFileName) > 64)) { | ||
| return true; | ||
| } | ||
|
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| return false; | ||
| } | ||
|
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| private function writeCacheFile(string $cacheFileName, $content): void | ||
| { | ||
| // phpcs:ignore Generic.PHP.NoSilencedErrors | ||
| $bytes = @file_put_contents($cacheFileName, $content, LOCK_EX); | ||
|
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| if ($bytes === false) { | ||
| $this->logger->error('Cache file write failed', ['file' => $cacheFileName]); | ||
| return; | ||
| } | ||
|
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| $expected = strlen($content); | ||
| if ($bytes !== $expected) { | ||
| $this->logger->error('Cache file partial write', [ | ||
| 'file' => $cacheFileName, | ||
| 'expected' => $expected, | ||
| 'written' => $bytes, | ||
| ]); | ||
| } | ||
| } | ||
|
coderabbitai[bot] marked this conversation as resolved.
|
||
| } | ||
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