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<?php
declare(strict_types=1);
namespace SPC\store;
use SPC\builder\linux\SystemUtil;
use SPC\exception\DownloaderException;
use SPC\exception\FileSystemException;
use SPC\exception\RuntimeException;
use SPC\exception\WrongUsageException;
use SPC\store\source\CustomSourceBase;
/**
* Source Downloader.
*/
class Downloader
{
/**
* Get latest version from BitBucket tag (type = bitbuckettag)
*
* @param string $name source name
* @param array $source source meta info: [repo]
* @return array<int, string> [url, filename]
* @throws DownloaderException
*/
public static function getLatestBitbucketTag(string $name, array $source): array
{
logger()->debug("finding {$name} source from bitbucket tag");
$data = json_decode(self::curlExec(
url: "https://api.bitbucket.org/2.0/repositories/{$source['repo']}/refs/tags",
retries: self::getRetryAttempts()
), true);
$ver = $data['values'][0]['name'];
if (!$ver) {
throw new DownloaderException("failed to find {$name} bitbucket source");
}
$url = "https://bitbucket.org/{$source['repo']}/get/{$ver}.tar.gz";
$headers = self::curlExec(
url: $url,
method: 'HEAD',
retries: self::getRetryAttempts()
);
preg_match('/^content-disposition:\s+attachment;\s*filename=("?)(?<filename>.+\.tar\.gz)\1/im', $headers, $matches);
if ($matches) {
$filename = $matches['filename'];
} else {
$filename = "{$name}-{$data['tag_name']}.tar.gz";
}
return [$url, $filename];
}
/**
* Get latest version from GitHub tarball (type = ghtar / ghtagtar)
*
* @param string $name source name
* @param array $source source meta info: [repo]
* @param string $type type of tarball, default is 'releases'
* @return array<int, string> [url, filename]
*
* @throws DownloaderException
*/
public static function getLatestGithubTarball(string $name, array $source, string $type = 'releases'): array
{
logger()->debug("finding {$name} source from github {$type} tarball");
$data = json_decode(self::curlExec(
url: "https://api.github.com/repos/{$source['repo']}/{$type}",
hooks: [[CurlHook::class, 'setupGithubToken']],
retries: self::getRetryAttempts()
), true);
$url = null;
for ($i = 0; $i < count($data); ++$i) {
if (($data[$i]['prerelease'] ?? false) === true && ($source['prefer-stable'] ?? false)) {
continue;
}
if (!($source['match'] ?? null)) {
$url = $data[$i]['tarball_url'] ?? null;
break;
}
if (preg_match('|' . $source['match'] . '|', $data[$i]['tarball_url'])) {
$url = $data[$i]['tarball_url'];
break;
}
}
if (!$url) {
throw new DownloaderException("failed to find {$name} source");
}
$headers = self::curlExec(
url: $url,
method: 'HEAD',
hooks: [[CurlHook::class, 'setupGithubToken']],
retries: self::getRetryAttempts()
);
preg_match('/^content-disposition:\s+attachment;\s*filename=("?)(?<filename>.+\.tar\.gz)\1/im', $headers, $matches);
if ($matches) {
$filename = $matches['filename'];
} else {
$filename = "{$name}-" . ($type === 'releases' ? $data['tag_name'] : $data['name']) . '.tar.gz';
}
return [$url, $filename];
}
/**
* Get latest version from GitHub release (uploaded archive)
*
* @param string $name source name
* @param array $source source meta info: [repo, match]
* @param bool $match_result Whether to return matched result by `match` param (default: true)
* @return array<int, string> When $match_result = true, and we matched, [url, filename]. Otherwise, [{asset object}. ...]
* @throws DownloaderException
*/
public static function getLatestGithubRelease(string $name, array $source, bool $match_result = true): array
{
logger()->debug("finding {$name} from github releases assets");
$data = json_decode(self::curlExec(
url: "https://api.github.com/repos/{$source['repo']}/releases",
hooks: [[CurlHook::class, 'setupGithubToken']],
retries: self::getRetryAttempts()
), true);
$url = null;
$filename = null;
foreach ($data as $release) {
if (($source['prefer-stable'] ?? false) === true && $release['prerelease'] === true) {
continue;
}
logger()->debug("Found {$release['name']} releases assets");
if (!$match_result) {
return $release['assets'];
}
foreach ($release['assets'] as $asset) {
if (preg_match('|' . $source['match'] . '|', $asset['name'])) {
$url = "https://api.github.com/repos/{$source['repo']}/releases/assets/{$asset['id']}";
$filename = $asset['name'];
break 2;
}
}
}
if (!$url || !$filename) {
throw new DownloaderException("failed to find {$name} release metadata");
}
return [$url, $filename];
}
/**
* Get latest version from file list (regex based crawler)
*
* @param string $name source name
* @param array $source source meta info: [url, regex]
* @return array<int, string> [url, filename]
* @throws DownloaderException
*/
public static function getFromFileList(string $name, array $source): array
{
logger()->debug("finding {$name} source from file list");
$page = self::curlExec($source['url'], retries: self::getRetryAttempts());
preg_match_all($source['regex'], $page, $matches);
if (!$matches) {
throw new DownloaderException("Failed to get {$name} version");
}
$versions = [];
foreach ($matches['version'] as $i => $version) {
$lowerVersion = strtolower($version);
foreach ([
'alpha',
'beta',
'rc',
'pre',
'nightly',
'snapshot',
'dev',
] as $betaVersion) {
if (str_contains($lowerVersion, $betaVersion)) {
continue 2;
}
}
$versions[$version] = $matches['file'][$i];
}
uksort($versions, 'version_compare');
return [$source['url'] . end($versions), end($versions), key($versions)];
}
/**
* Just download file using system curl command, and lock it
*
* @throws FileSystemException
* @throws RuntimeException
* @throws WrongUsageException
*/
public static function downloadFile(string $name, string $url, string $filename, ?string $move_path = null, int $download_as = SPC_DOWNLOAD_SOURCE, array $headers = [], array $hooks = []): void
{
logger()->debug("Downloading {$url}");
$cancel_func = function () use ($filename) {
if (file_exists(FileSystem::convertPath(DOWNLOAD_PATH . '/' . $filename))) {
logger()->warning('Deleting download file: ' . $filename);
unlink(FileSystem::convertPath(DOWNLOAD_PATH . '/' . $filename));
}
};
self::registerCancelEvent($cancel_func);
self::curlDown(url: $url, path: FileSystem::convertPath(DOWNLOAD_PATH . "/{$filename}"), headers: $headers, hooks: $hooks, retries: self::getRetryAttempts());
self::unregisterCancelEvent();
logger()->debug("Locking {$filename}");
if ($download_as === SPC_DOWNLOAD_PRE_BUILT) {
$name = self::getPreBuiltLockName($name);
}
self::lockSource($name, ['source_type' => 'archive', 'filename' => $filename, 'move_path' => $move_path, 'lock_as' => $download_as]);
}
/**
* Try to lock source.
*
* @param string $name Source name
* @param array{
* source_type: string,
* dirname: ?string,
* filename: ?string,
* move_path: ?string,
* lock_as: int
* } $data Source data
* @throws FileSystemException
*/
public static function lockSource(string $name, array $data): void
{
if (!file_exists(FileSystem::convertPath(DOWNLOAD_PATH . '/.lock.json'))) {
$lock = [];
} else {
$lock = json_decode(FileSystem::readFile(DOWNLOAD_PATH . '/.lock.json'), true) ?? [];
}
$lock[$name] = $data;
FileSystem::writeFile(DOWNLOAD_PATH . '/.lock.json', json_encode($lock, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
}
/**
* Download git source, and lock it.
*
* @throws FileSystemException
* @throws RuntimeException
* @throws WrongUsageException
*/
public static function downloadGit(string $name, string $url, string $branch, ?string $move_path = null, int $retries = 0, int $lock_as = SPC_DOWNLOAD_SOURCE): void
{
$download_path = FileSystem::convertPath(DOWNLOAD_PATH . "/{$name}");
if (file_exists($download_path)) {
FileSystem::removeDir($download_path);
}
logger()->debug("cloning {$name} source");
$check = !defined('DEBUG_MODE') ? ' -q' : '';
$cancel_func = function () use ($download_path) {
if (is_dir($download_path)) {
logger()->warning('Removing path ' . $download_path);
FileSystem::removeDir($download_path);
}
};
try {
self::registerCancelEvent($cancel_func);
f_passthru(
SPC_GIT_EXEC . ' clone' . $check .
(defined('DEBUG_MODE') ? '' : ' --quiet') .
' --config core.autocrlf=false ' .
"--branch \"{$branch}\" " . (defined('GIT_SHALLOW_CLONE') ? '--depth 1 --single-branch' : '') . " --recursive \"{$url}\" \"{$download_path}\""
);
} catch (RuntimeException $e) {
if ($e->getCode() === 2 || $e->getCode() === -1073741510) {
throw new WrongUsageException('Keyboard interrupted, download failed !');
}
if ($retries > 0) {
self::downloadGit($name, $url, $branch, $move_path, $retries - 1);
return;
}
throw $e;
} finally {
self::unregisterCancelEvent();
}
// Lock
logger()->debug("Locking git source {$name}");
self::lockSource($name, ['source_type' => 'dir', 'dirname' => $name, 'move_path' => $move_path, 'lock_as' => $lock_as]);
/*
// 复制目录过去
if ($path !== $download_path) {
$dst_path = FileSystem::convertPath($path);
$src_path = FileSystem::convertPath($download_path);
switch (PHP_OS_FAMILY) {
case 'Windows':
f_passthru('xcopy "' . $src_path . '" "' . $dst_path . '" /s/e/v/y/i');
break;
case 'Linux':
case 'Darwin':
f_passthru('cp -r "' . $src_path . '" "' . $dst_path . '"');
break;
}
}*/
}
/**
* @param string $name Package name
* @param null|array{
* type: string,
* repo: ?string,
* url: ?string,
* rev: ?string,
* path: ?string,
* filename: ?string,
* match: ?string,
* prefer-stable: ?bool,
* extract-files: ?array<string, string>
* } $pkg Package config
* @param bool $force Download all the time even if it exists
* @throws DownloaderException
* @throws FileSystemException
* @throws WrongUsageException
*/
public static function downloadPackage(string $name, ?array $pkg = null, bool $force = false): void
{
if ($pkg === null) {
$pkg = Config::getPkg($name);
}
if ($pkg === null) {
logger()->warning('Package {name} unknown. Skipping.', ['name' => $name]);
return;
}
if (!is_dir(DOWNLOAD_PATH)) {
FileSystem::createDir(DOWNLOAD_PATH);
}
if (self::isAlreadyDownloaded($name, $force, SPC_DOWNLOAD_PACKAGE)) {
return;
}
try {
switch ($pkg['type']) {
case 'bitbuckettag': // BitBucket Tag
[$url, $filename] = self::getLatestBitbucketTag($name, $pkg);
self::downloadFile($name, $url, $filename, $pkg['extract'] ?? null, SPC_DOWNLOAD_PACKAGE);
break;
case 'ghtar': // GitHub Release (tar)
[$url, $filename] = self::getLatestGithubTarball($name, $pkg);
self::downloadFile($name, $url, $filename, $pkg['extract'] ?? null, SPC_DOWNLOAD_PACKAGE, hooks: [[CurlHook::class, 'setupGithubToken']]);
break;
case 'ghtagtar': // GitHub Tag (tar)
[$url, $filename] = self::getLatestGithubTarball($name, $pkg, 'tags');
self::downloadFile($name, $url, $filename, $pkg['extract'] ?? null, SPC_DOWNLOAD_PACKAGE, hooks: [[CurlHook::class, 'setupGithubToken']]);
break;
case 'ghrel': // GitHub Release (uploaded)
[$url, $filename] = self::getLatestGithubRelease($name, $pkg);
self::downloadFile($name, $url, $filename, $pkg['extract'] ?? null, SPC_DOWNLOAD_PACKAGE, ['Accept: application/octet-stream'], [[CurlHook::class, 'setupGithubToken']]);
break;
case 'filelist': // Basic File List (regex based crawler)
[$url, $filename] = self::getFromFileList($name, $pkg);
self::downloadFile($name, $url, $filename, $pkg['extract'] ?? null, SPC_DOWNLOAD_PACKAGE);
break;
case 'url': // Direct download URL
$url = $pkg['url'];
$filename = $pkg['filename'] ?? basename($pkg['url']);
self::downloadFile($name, $url, $filename, $pkg['extract'] ?? null, SPC_DOWNLOAD_PACKAGE);
break;
case 'git': // Git repo
self::downloadGit(
$name,
$pkg['url'],
$pkg['rev'],
$pkg['extract'] ?? null,
self::getRetryAttempts(),
SPC_DOWNLOAD_PRE_BUILT
);
break;
case 'custom': // Custom download method, like API-based download or other
$classes = FileSystem::getClassesPsr4(ROOT_DIR . '/src/SPC/store/source', 'SPC\store\source');
foreach ($classes as $class) {
if (is_a($class, CustomSourceBase::class, true) && $class::NAME === $name) {
(new $class())->fetch($force);
break;
}
}
break;
default:
throw new DownloaderException('unknown source type: ' . $pkg['type']);
}
} catch (RuntimeException $e) {
// Because sometimes files downloaded through the command line are not automatically deleted after a failure.
// Here we need to manually delete the file if it is detected to exist.
if (isset($filename) && file_exists(DOWNLOAD_PATH . '/' . $filename)) {
logger()->warning('Deleting download file: ' . $filename);
unlink(DOWNLOAD_PATH . '/' . $filename);
}
throw new DownloaderException('Download failed! ' . $e->getMessage());
}
}
/**
* Download source by name and meta.
*
* @param string $name source name
* @param null|array{
* type: string,
* repo: ?string,
* url: ?string,
* rev: ?string,
* path: ?string,
* filename: ?string,
* match: ?string,
* prefer-stable: ?bool,
* provide-pre-built: ?bool,
* license: array{
* type: string,
* path: ?string,
* text: ?string
* }
* } $source source meta info: [type, path, rev, url, filename, regex, license]
* @param bool $force Whether to force download (default: false)
* @param int $download_as Lock source type (default: SPC_LOCK_SOURCE)
* @throws DownloaderException
* @throws FileSystemException
* @throws WrongUsageException
*/
public static function downloadSource(string $name, ?array $source = null, bool $force = false, int $download_as = SPC_DOWNLOAD_SOURCE): void
{
if ($source === null) {
$source = Config::getSource($name);
}
if ($source === null) {
logger()->warning('Source {name} unknown. Skipping.', ['name' => $name]);
return;
}
if (!is_dir(DOWNLOAD_PATH)) {
FileSystem::createDir(DOWNLOAD_PATH);
}
// load lock file
if (self::isAlreadyDownloaded($name, $force, $download_as)) {
return;
}
try {
switch ($source['type']) {
case 'bitbuckettag': // BitBucket Tag
[$url, $filename] = self::getLatestBitbucketTag($name, $source);
self::downloadFile($name, $url, $filename, $source['path'] ?? null, $download_as);
break;
case 'ghtar': // GitHub Release (tar)
[$url, $filename] = self::getLatestGithubTarball($name, $source);
self::downloadFile($name, $url, $filename, $source['path'] ?? null, $download_as, hooks: [[CurlHook::class, 'setupGithubToken']]);
break;
case 'ghtagtar': // GitHub Tag (tar)
[$url, $filename] = self::getLatestGithubTarball($name, $source, 'tags');
self::downloadFile($name, $url, $filename, $source['path'] ?? null, $download_as, hooks: [[CurlHook::class, 'setupGithubToken']]);
break;
case 'ghrel': // GitHub Release (uploaded)
[$url, $filename] = self::getLatestGithubRelease($name, $source);
self::downloadFile($name, $url, $filename, $source['path'] ?? null, $download_as, ['Accept: application/octet-stream'], [[CurlHook::class, 'setupGithubToken']]);
break;
case 'filelist': // Basic File List (regex based crawler)
[$url, $filename] = self::getFromFileList($name, $source);
self::downloadFile($name, $url, $filename, $source['path'] ?? null, $download_as);
break;
case 'url': // Direct download URL
$url = $source['url'];
$filename = $source['filename'] ?? basename($source['url']);
self::downloadFile($name, $url, $filename, $source['path'] ?? null, $download_as);
break;
case 'git': // Git repo
self::downloadGit(
$name,
$source['url'],
$source['rev'],
$source['path'] ?? null,
self::getRetryAttempts(),
$download_as
);
break;
case 'custom': // Custom download method, like API-based download or other
if (isset($source['func']) && is_callable($source['func'])) {
$source['name'] = $name;
$source['func']($force, $source, $download_as);
break;
}
$classes = FileSystem::getClassesPsr4(ROOT_DIR . '/src/SPC/store/source', 'SPC\store\source');
foreach ($classes as $class) {
if (is_a($class, CustomSourceBase::class, true) && $class::NAME === $name) {
(new $class())->fetch($force, $source, $download_as);
break;
}
}
break;
default:
throw new DownloaderException('unknown source type: ' . $source['type']);
}
} catch (RuntimeException $e) {
// Because sometimes files downloaded through the command line are not automatically deleted after a failure.
// Here we need to manually delete the file if it is detected to exist.
if (isset($filename) && file_exists(DOWNLOAD_PATH . '/' . $filename)) {
logger()->warning('Deleting download file: ' . $filename);
unlink(DOWNLOAD_PATH . '/' . $filename);
}
throw new DownloaderException('Download failed! ' . $e->getMessage());
}
}
/**
* Use curl command to get http response
*
* @throws DownloaderException
*/
public static function curlExec(string $url, string $method = 'GET', array $headers = [], array $hooks = [], int $retries = 0): string
{
foreach ($hooks as $hook) {
$hook($method, $url, $headers);
}
FileSystem::findCommandPath('curl');
$methodArg = match ($method) {
'GET' => '',
'HEAD' => '-I',
default => "-X \"{$method}\"",
};
$headerArg = implode(' ', array_map(fn ($v) => '"-H' . $v . '"', $headers));
$retry = $retries > 0 ? "--retry {$retries}" : '';
$cmd = SPC_CURL_EXEC . " -sfSL {$retry} {$methodArg} {$headerArg} \"{$url}\"";
if (getenv('CACHE_API_EXEC') === 'yes') {
if (!file_exists(FileSystem::convertPath(DOWNLOAD_PATH . '/.curl_exec_cache'))) {
$cache = [];
} else {
$cache = json_decode(file_get_contents(FileSystem::convertPath(DOWNLOAD_PATH . '/.curl_exec_cache')), true);
}
if (isset($cache[$cmd]) && $cache[$cmd]['expire'] >= time()) {
return $cache[$cmd]['cache'];
}
f_exec($cmd, $output, $ret);
if ($ret === 2 || $ret === -1073741510) {
throw new RuntimeException(sprintf('Failed to fetch "%s"', $url));
}
if ($ret !== 0) {
throw new DownloaderException(sprintf('Failed to fetch "%s"', $url));
}
$cache[$cmd]['cache'] = implode("\n", $output);
$cache[$cmd]['expire'] = time() + 3600;
file_put_contents(FileSystem::convertPath(DOWNLOAD_PATH . '/.curl_exec_cache'), json_encode($cache));
return $cache[$cmd]['cache'];
}
f_exec($cmd, $output, $ret);
if ($ret === 2 || $ret === -1073741510) {
throw new RuntimeException(sprintf('Failed to fetch "%s"', $url));
}
if ($ret !== 0) {
throw new DownloaderException(sprintf('Failed to fetch "%s"', $url));
}
return implode("\n", $output);
}
/**
* Use curl to download sources from url
*
* @throws RuntimeException
* @throws WrongUsageException
*/
public static function curlDown(string $url, string $path, string $method = 'GET', array $headers = [], array $hooks = [], int $retries = 0): void
{
$used_headers = $headers;
foreach ($hooks as $hook) {
$hook($method, $url, $used_headers);
}
$methodArg = match ($method) {
'GET' => '',
'HEAD' => '-I',
default => "-X \"{$method}\"",
};
$headerArg = implode(' ', array_map(fn ($v) => '"-H' . $v . '"', $used_headers));
$check = !defined('DEBUG_MODE') ? 's' : '#';
$retry = $retries > 0 ? "--retry {$retries}" : '';
$cmd = SPC_CURL_EXEC . " -{$check}fSL {$retry} -o \"{$path}\" {$methodArg} {$headerArg} \"{$url}\"";
try {
f_passthru($cmd);
} catch (RuntimeException $e) {
if ($e->getCode() === 2 || $e->getCode() === -1073741510) {
throw new WrongUsageException('Keyboard interrupted, download failed !');
}
throw $e;
}
}
public static function getPreBuiltLockName(string $source): string
{
return "{$source}-" . PHP_OS_FAMILY . '-' . getenv('GNU_ARCH') . '-' . (getenv('SPC_LIBC') ?: 'default') . '-' . (SystemUtil::getLibcVersionIfExists() ?? 'default');
}
/**
* Register CTRL+C event for different OS.
*
* @param callable $callback callback function
*/
private static function registerCancelEvent(callable $callback): void
{
if (PHP_OS_FAMILY === 'Windows') {
sapi_windows_set_ctrl_handler($callback);
} elseif (extension_loaded('pcntl')) {
pcntl_signal(2, $callback);
} else {
logger()->debug('You have not enabled `pcntl` extension, cannot prevent download file corruption when Ctrl+C');
}
}
/**
* Unegister CTRL+C event for different OS.
*/
private static function unregisterCancelEvent(): void
{
if (PHP_OS_FAMILY === 'Windows') {
sapi_windows_set_ctrl_handler(null);
} elseif (extension_loaded('pcntl')) {
pcntl_signal(2, SIG_IGN);
}
}
private static function getRetryAttempts(): int
{
return intval(getenv('SPC_DOWNLOAD_RETRIES') ?: 0);
}
/**
* @throws FileSystemException
*/
private static function isAlreadyDownloaded(string $name, bool $force, int $download_as = SPC_DOWNLOAD_SOURCE): bool
{
if (!file_exists(DOWNLOAD_PATH . '/.lock.json')) {
$lock = [];
} else {
$lock = json_decode(FileSystem::readFile(DOWNLOAD_PATH . '/.lock.json'), true) ?? [];
}
// If lock file exists, skip downloading for source mode
if (!$force && $download_as === SPC_DOWNLOAD_SOURCE && isset($lock[$name])) {
if (
$lock[$name]['source_type'] === 'archive' && file_exists(DOWNLOAD_PATH . '/' . $lock[$name]['filename']) ||
$lock[$name]['source_type'] === 'dir' && is_dir(DOWNLOAD_PATH . '/' . $lock[$name]['dirname'])
) {
logger()->notice("Source [{$name}] already downloaded: " . ($lock[$name]['filename'] ?? $lock[$name]['dirname']));
return true;
}
}
// If lock file exists for current arch and glibc target, skip downloading
if (!$force && $download_as === SPC_DOWNLOAD_PRE_BUILT && isset($lock[$lock_name = self::getPreBuiltLockName($name)])) {
// lock name with env
if (
$lock[$lock_name]['source_type'] === 'archive' && file_exists(DOWNLOAD_PATH . '/' . $lock[$lock_name]['filename']) ||
$lock[$lock_name]['source_type'] === 'dir' && is_dir(DOWNLOAD_PATH . '/' . $lock[$lock_name]['dirname'])
) {
logger()->notice("Pre-built content [{$name}] already downloaded: " . ($lock[$lock_name]['filename'] ?? $lock[$lock_name]['dirname']));
return true;
}
}
return false;
}
}